490
Toxoplasma
(Lankester). Da Costa & Pereira (2) thought that the organism found by de Alencar ( 1 ) in B. marinus was a hemogregarine, and that the organism he had found in L . ocellatus was their Lankesterella alencari. The last opinion is probably correct. I t is not safe, however, to assign a Toxoplasma-like organism to the genus Lankesterella simply because it does not infect mice. Pending the discovery of its complete life cycle, it is preferable to retain it in the genus Toxoplasma. The organism found by de Alencar ( 1 ) and da Costa & Pereira ( 2 ) in L . ocellatus should more properly be called Toxoplasma alencari (da Costa & Pereira, 1971) comb. nov. Two species of Toxoplasma, then, have already been named from Amphibia. The question arises whether the organisms we found in R. pipiens can be assigned to either of them. Our organism appears to differ markedly from T . serpai, but it resembles T. alencari to a considerable extent; however, the fact that the nuclei of its zoites are central rather than subterminal suggests that it is a different species. We are therefore naming it Toxoplasma ranae sp. n. REFERENCES 1. De Alencar AA. 1957. Toxoplasmose espontanea e inaparente em anfibios dos generos Leptodactylus e Bufo. I . Bras. Neurol. 9, 137-46.
**--a
c-
=,
2. Da Costa SCG, Pereira NM. 1971. Lankesterella alcncari n. sp., a Toxoplasma-like organism in the central nervous system of Amphibia (Protozoa, Sporozoa) . Mem. Znst. Oswaldo Cruz 69, 397-424. 3. , Silva AM, Bernaola NM, Pereira NM. 1970. The problem of toxoplasmosis in Amphibia (Part I). Forms related to the Dactylosoma life cycle (Protozoa, Sporozoa). Atas Soc. Biol. Rio de Ianeiro 12, (Suppl.), 7-13. , de Sousa MA, Weigl DR. 1975. The ultrastruc4. ture of Lankesterella alencari. 1.Protozool. 22, 36A. 5. Kozar Z. 1952. Attempted adaptation of human Toxoplasma to cold-blooded animals. Bull. State Znst. Mar. Trop. M e d . Gdahsk. 4, 23-8. 6. Manwell RD. Bernstein E. Dillon R. 1953. Toxoblasrna in frogs. 1. Parasitol.’39, 406-7. ’ 7. , Coulston F, Binckley EC, Jones VP. 1945. Mammalian and avian Toxoblasma. 1. Znf. Dis. 76. 1-14. 8. Scorza JV, Dagirt C, I t h z a Arocha’L. 1956. Estudo sobre hemoparasitos de Bufo marinus L. da Venezuela. 1. Hemogregarinas. 2. Uma nova especie de Toxoplasma. M e m . Znst. OsWaldo Crux 54, 373-92. 9. Splepdore, A. 1913. Nuove osservazioni sul Toxoplasma cuniculi. Atti R . Accad. Lincei, Roma. Rendic. Cl. Sci. Fis., M a t . e Nut. an 310, 5. s., 22, 722-7. 10. Stensaas LJ, Stensaas SS, Sotelo JR. 1967. An intraaxonal protozoon in the spinal cord of the toad Bufo arenarum (Hensel) . I. Protozool. 14, 585-95. 11. Stone WB, Manwell RD. 1969. Toxoplasmosis in coldblooded hosts. J . Protozool.. 16, 99-102.
J. PROTOZOOL. 23(4), 490-492 (1976).
The Genus Leptotheca (Protozoa: Myxosporida) in Macrourid fishes and Sablefish, Anoplopornu fimbriu* MIKE MOSER and ELMER R. NOBLE Department of Biological Sciences, University of California, Santa Barbara, California 93106
SYNOPSIS. Five species of Leptotheca, one new, were found in the macrourid fishes and the sablefish, Anoplopoma fimbria. Those species which were geographically widespread in numerous host species showed little variation. Two Leptotheca species were found both in the gall bladder and urinary bladder/kidney.
Index Key Words: Myxosporida; Leptotheca; Anoplopoma; Macrouridae; protozoan parasites; marine fish.
E
LEVEN species of marine, midwater macrourid fishes (Coryphaenoides, Coelorhinchus, Nezumia and Ventrifossa) , and one species of Anoplopoma were examined for the myxosporidan parasite, Leptotheca. Collection data and infection rates are given in Table 1. Five species of Leptotheca, one new, were recovered. Previous records of this genus have indicated a site selection of either the gall bladder or urinary bladder/kidney. We found L. minima and L. minuta sp. n. in both habitats. The small sizes of these species may permit them to inhabit the smaller kidney tubules. Those species of parasites found in widely separated geographic areas as well as in numerous host species had very little size variation.
loci, localities, depths of capture, and infection rates are given in Table 1. RESULTS In the following descriptions the combined dimensions for all hosts are given. Leptotheca minima Meglitsch, 1960
Trophomite--13.5 (10-17) X 11.5 (10-13); disporous. Spore-sutural diameter, 5.7 (4.0-7.5), 9 = 2.6; width 7.8 (7.0-9.5), s2 = 1.68; diameter of polar capsules, 2.5 (1.0-3.5), s2 = 1.10.
MATERIALS AND METHODS
Leptotheca informis Auerbach, 1910
All necropsies were performed on formalin-fixed, alcoholpreserved fishes at the University of California, Santa Barbara. The parasites were stained by the standard Giemsa’s method and examined in a Zeiss microscope equipped with phase contrast optics and 1,259X bright-field objective. In addition to the range and means, we have included the sample’s variation, s2. Measurements are given in micrometers ( p m ). Hosts, infection
Trophozoite-27.0 (25.0-28.0) X 21.0 (17.7-24.0) ; disporous. Spore-sutural diameter 9.7 (7.0-16.5), s* = 3.1; width 16.2 ( 10.0-20.0), s = 3.7; thickness 9.7 (7.0-10.5), s2 = 2.4; diameter of polar capsules 3.6 (2.5-5.0), s2 = 2.0; coils in polar filaments, 5-8.
* This investigation was supported in part by the NSF Grant No.
CA 34144 and Sea Grant 046-158-20.
Leptotheca armatura Yoshino and Moser, 1974
Spore-sutural diameter 12.2 (10.0-13.5), 9 = 3.4; width 17.7 (10.0-25.5), s2 = 14.0; thickness 13.0; diameter of polar capsules 5.7 (3.0-8.0), s2 = 4.1; coils in polar filaments, 7-9.
Leptotheca
FROM
FISHES
49 1
Leptotheca coelorhynchus Yoshino and Noble, 1973 Trophozoite-17.0 ( 1 2.2-25.0) x 27.0 (16.7-38.0); disporous. Spore-sutural diameter 7.9 (6.0-8.7), s2 = 1.3; width 13.0 (9.0-15.0), s2 = 3.4; thickness 6.9 (6.4-8.0), s2 = 2.2; diameter of polar capsule 2.9 (1.5-4.0), s2 = 2.8.
2
Leptotheca minuta sp. n. (Fig. 1) Diagnosis. Trophozoite-coelozoic; round or pyriform; ectoplasm hyaline; may have filamentous posterior processes; dissutural porous; 13.0 (11.0-14.5) X 11.0 (8.0-12.0). Spore-in view, anterior margin convrx and posterior margin slightly convex or flattrned; in anterior view, elliptical; in end view, elongate; shell valves equal; straight, distinct sutural line between round polar capsules; binucleated; sporoplasm finely to moderately granular, diffuse; sutural diameter, 4.8 (4.0-6.5) 9 s2 = 1.9; width 6.7 (5.0-8.5), 3’ = 3.1; thickness 4.3 (3.5-5.0),
Figs. 1-3. [Line diagrams of Leptotheca minuta sp. n.] 1. Disporous trophozoite. 2. Anterior view of spore. 3. Pyriform disporous trophozoite. Note the polar filaments in the spores.
TABLE1 . Collection and infection rates of deep-sea fishes with Leptotheca spp. _ _ _ _ _ ~ _ _ _ _ _ ~ ~ .
Hosts of Leptotheca spp.
Leptotheca minima Meglitsch, 1960 Coryphaenoides acrolepis (Bean) Corpyhaenoides armatus (Hector) Leptotheca informis Auerbach, 1910 Anoplopoma fimbria (Pallas) Coelorinchus scaphopsis (Gilbert) Coryphaenoides acrolepis (Bean) Coryphaenoides fernandezianus (Giinther) Coryphaenoides filifer (Gilbert ) Coryphaenoides pectoralis (Gilbert) Leptotheca armatura Yoshino & Moser 1974 Coryphaenoides acrolepis (Bean) Coryphaenoides leptolepis Giinther Coryphaenoides pectoralis (Gilbert) Leptotheca coelorhynchus Yoshino & Noble 1973 Coelorinchus coelorhincus (Risso) Coryphaenoides armatus (Hector) Ventrifossa nigrodorsalis Gilbert & Hubbs Leptotheca minuta sp. n. Coelorinchus occa IGoode & Bean) Nerumia condylura Jordan & Gilbert
Infection sites*
Localityt
~-
gb & bile ducts gb & bile ducts
Off no. Mexico, so., no. Ca., Ore. Off no. Mexico, so., centr., no. Ca., Ore.
gb
Off so. Ca.
300
gb
Off Mexico
440
gb & bile ducts gb
Off no. Mexico, so., centr., no. Ca., Ore. Off Chile
gb
Off Ore.,
gb
Canada Off no. Ca., Wash.
1000-
10002600 3704 28072825 5402500
1000-
Off
gb
Off no. Ca.
39284054 5402500
gb
Off Ireland
-
gb
Off so. Australia Off Boreno
-
gb
gb gb
so.
Ca.
2000
Off no. Ca.
Off Lesser Antilles Off Japan
t so. = southern; centr. = central; no. = northern; Ca. = California;’ Ore. = Oregon.
Infected/ examined (% infected)
2600 28074550
gb & bile ducts gb
~
* gb = gall bladder.
~
Depth of capture (meters)
6 94
884 400
2/36 (5) 1/12 (8) 14/31 (45)
.~
492
Leptotheca
FROM
= 1.5; diameter of polar capsule, 1.2 (1.0-2.0), s2 = 0.4; coils in polar filaments, 4-5. Syntype specimens deposited in USNM Helm. Coll. No. 2620.
FISHES
Remarks The new species is closest in size and shape to Leptotheca minima Meglitsch 1960, from the gall bladder of Arripis trutta found off New Zealand, from which it differs in being smaller in width and sutural diameter. Because of these differences we believe our species to be new and name it L. minuta.
REFERENCES 1910. Die Cnidosporidien (Myxosporidien, Actinomyxidien, Microsporidien). Eine monographische Studie. W . Klinkhardt, Leipzig. 2. Meglitsch PA. 1960. Some coelozoic Myxosporidia from New England fishes. Part I. General, and Family Ceratomyxidae. Trans. R. SOG.N. 2. Zool. 88, 265-356. 3. Yoshino TP, Noble ER. 1973. Myxosporida of macrourid fishes from southern California and Mexico. I. Parasitol. 59, 84450. 4. , Moser M. 1974. Myxosporida (Protozoa) in macrourid fishes (Coryphaenoides spp.) of the northeastern Pacific. ]. Parasitol. 60, 655-9.
Committees and Representatives of the Society of Protozoologiets for 1976/77
Program: Anthony D. Soldo (Veterans Administration Hospital, 1201 Northwest 16th St., Miami, F L 33125); Phyllis
The President of the Society has appointed the members of the Standing and Ad Hoc Committees for the year 1976/77 and the Society’s Representatives to the various organizations which require such representation. The Society’s membership is hereby informed about these appointments and is asked to communicate with the chairmen of the Committees and/or the Society’s Representatives to express their opinions or wishes with regard to matters within the purview of a committee or an organization in which the Society is involved.-R. BARCLAY McGHEE, Secretary.
Tellers: Chairman: R. Barclay McGhee (Department of Zoology, University of Georgia, Athens, G A 30602) ; Jerome Paulin, Hope T. Ritter. Systematics and Evolution: Norman D. Levine, Chairman (College of Veterinary Medicine, University of Illinois, Urbana, ZL 61801); John 0. Corliss, F. E. G. Cox, B. M. Honigberg, J. Grain, J. Vivra, F. C. Page, G. Poljansky, F. G. Wallace. In Memoriam Committee: B. M. Honigberg, Chairman (Zoology Department, University of Massachusetts, Amherst, M A 01003); John 0. Corliss, R. Barclay McGhee. American Association for the Advancement of Science: Eugene B. Small, Department of Zoology, University of Maryland, College Park, M D 20742. American Institute of Biological Sciences: William C. Marquardt, Department of Zoology, Colorado State University, Ft. Collins, CO 80521. American Type Culture Collection, Board of Trustees: Audrey Barnett, Department of Zoology, University of Maryland, College Park, M D 20742. Commission on Protozoology of the International Union of Biological Sciences: William Trager, T h e Rockefeller University, 1230 York Avenue, N e w York, N Y 10021; Dorothy R. Pitelka, Cancer Research Lab., University of California, Berkeley, CA 94720; B. M. Honigberg, Zoology Department, University of Massachusetts, Amherst, M A 01003; John J . Lee, Department of Biology, City College of N e w York, NY 10031. (These delegates are also Officers of the Commission and of the V Congress of Protozoology,
s2
Associated Societies: Stuart S. Bamforth, Chairman (Department of Biology, Newcomb College, Tulane University, New Orleans, L A 70118); C. Chapman-Andresen, Stanislaw Dryl, Keith Vickerman, M. Samish; R. Barclay McGhee, ex officio. Business Advisory Committee: William C. Marquardt, Chairman (Department of Zoology, Colorado State University, Ft. Collins, CO 80521); Neal Band, Larry McDougald; E. C. Bovee, ex officio, B. M. Honigberg, ex officio. Editorial Board for Special Publications: Seymour H. Hutner, Chairman (Haskins Labs. at Pace University, Pace Plaza, New York, h7Y 10037); W. Balamuth, R. L. Conner, P. C. C. Garnham, J. J. Lee, N. D. Levine, R. B. McGhee. Education Committee: Fred Schuster, Chairman (Biology Department, Brooklyn College, Brooklyn, N Y 11210) ; Frank Keegan, Mary Jo Koroly, Stuart Krassner, Anthony T. Soldo, Twitty J. Styles. Honorary Membership: Norman D. Levine (College of Veterinary Medicine, University of Illinois, Urbana, ZL 61801 ) ; Dorothy Pitelka, William Cosgrove, Karl Grell. Membership: George C. Hill (Department of Pathology, College of Vet. Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO 80521 ) ; William Lushbaugh, Donald Spoon, Gaytha Langlois, Govinda S. Visvesvara, Richard A. Albach. Nominating: Robert L. Conner (Biology Department, Bryn Mawr College, Bryn Mawr, P A 19010); Earl D. Hanson, Keith Vickerman.
1 . Auerbach M.
Bradbury, R. Barclay McGhee.
New York, 1977, serving respectively as President, Executive Vice-president, Vice-president and Chairman of the Scientific Program Committee, and Secretary General.)
National Academy of Sciences-National Research Council: John 0. Corliss, Department of Zoology, University of Maryland, College Park, M D 20742. World Federation of Parasitologists: R. Barclay McGhee, Department of Zoology, University of Georgia, Athens, G A 30602.
Toxoplasma
(Lankester). Da Costa & Pereira (2) thought that the organism found by de Alencar ( 1 ) in B. marinus was a hemogregarine, and that the organism he had found in L . ocellatus was their Lankesterella alencari. The last opinion is probably correct. I t is not safe, however, to assign a Toxoplasma-like organism to the genus Lankesterella simply because it does not infect mice. Pending the discovery of its complete life cycle, it is preferable to retain it in the genus Toxoplasma. The organism found by de Alencar ( 1 ) and da Costa & Pereira ( 2 ) in L . ocellatus should more properly be called Toxoplasma alencari (da Costa & Pereira, 1971) comb. nov. Two species of Toxoplasma, then, have already been named from Amphibia. The question arises whether the organisms we found in R. pipiens can be assigned to either of them. Our organism appears to differ markedly from T . serpai, but it resembles T. alencari to a considerable extent; however, the fact that the nuclei of its zoites are central rather than subterminal suggests that it is a different species. We are therefore naming it Toxoplasma ranae sp. n. REFERENCES 1. De Alencar AA. 1957. Toxoplasmose espontanea e inaparente em anfibios dos generos Leptodactylus e Bufo. I . Bras. Neurol. 9, 137-46.
**--a
c-
=,
2. Da Costa SCG, Pereira NM. 1971. Lankesterella alcncari n. sp., a Toxoplasma-like organism in the central nervous system of Amphibia (Protozoa, Sporozoa) . Mem. Znst. Oswaldo Cruz 69, 397-424. 3. , Silva AM, Bernaola NM, Pereira NM. 1970. The problem of toxoplasmosis in Amphibia (Part I). Forms related to the Dactylosoma life cycle (Protozoa, Sporozoa). Atas Soc. Biol. Rio de Ianeiro 12, (Suppl.), 7-13. , de Sousa MA, Weigl DR. 1975. The ultrastruc4. ture of Lankesterella alencari. 1.Protozool. 22, 36A. 5. Kozar Z. 1952. Attempted adaptation of human Toxoplasma to cold-blooded animals. Bull. State Znst. Mar. Trop. M e d . Gdahsk. 4, 23-8. 6. Manwell RD. Bernstein E. Dillon R. 1953. Toxoblasrna in frogs. 1. Parasitol.’39, 406-7. ’ 7. , Coulston F, Binckley EC, Jones VP. 1945. Mammalian and avian Toxoblasma. 1. Znf. Dis. 76. 1-14. 8. Scorza JV, Dagirt C, I t h z a Arocha’L. 1956. Estudo sobre hemoparasitos de Bufo marinus L. da Venezuela. 1. Hemogregarinas. 2. Uma nova especie de Toxoplasma. M e m . Znst. OsWaldo Crux 54, 373-92. 9. Splepdore, A. 1913. Nuove osservazioni sul Toxoplasma cuniculi. Atti R . Accad. Lincei, Roma. Rendic. Cl. Sci. Fis., M a t . e Nut. an 310, 5. s., 22, 722-7. 10. Stensaas LJ, Stensaas SS, Sotelo JR. 1967. An intraaxonal protozoon in the spinal cord of the toad Bufo arenarum (Hensel) . I. Protozool. 14, 585-95. 11. Stone WB, Manwell RD. 1969. Toxoplasmosis in coldblooded hosts. J . Protozool.. 16, 99-102.
J. PROTOZOOL. 23(4), 490-492 (1976).
The Genus Leptotheca (Protozoa: Myxosporida) in Macrourid fishes and Sablefish, Anoplopornu fimbriu* MIKE MOSER and ELMER R. NOBLE Department of Biological Sciences, University of California, Santa Barbara, California 93106
SYNOPSIS. Five species of Leptotheca, one new, were found in the macrourid fishes and the sablefish, Anoplopoma fimbria. Those species which were geographically widespread in numerous host species showed little variation. Two Leptotheca species were found both in the gall bladder and urinary bladder/kidney.
Index Key Words: Myxosporida; Leptotheca; Anoplopoma; Macrouridae; protozoan parasites; marine fish.
E
LEVEN species of marine, midwater macrourid fishes (Coryphaenoides, Coelorhinchus, Nezumia and Ventrifossa) , and one species of Anoplopoma were examined for the myxosporidan parasite, Leptotheca. Collection data and infection rates are given in Table 1. Five species of Leptotheca, one new, were recovered. Previous records of this genus have indicated a site selection of either the gall bladder or urinary bladder/kidney. We found L. minima and L. minuta sp. n. in both habitats. The small sizes of these species may permit them to inhabit the smaller kidney tubules. Those species of parasites found in widely separated geographic areas as well as in numerous host species had very little size variation.
loci, localities, depths of capture, and infection rates are given in Table 1. RESULTS In the following descriptions the combined dimensions for all hosts are given. Leptotheca minima Meglitsch, 1960
Trophomite--13.5 (10-17) X 11.5 (10-13); disporous. Spore-sutural diameter, 5.7 (4.0-7.5), 9 = 2.6; width 7.8 (7.0-9.5), s2 = 1.68; diameter of polar capsules, 2.5 (1.0-3.5), s2 = 1.10.
MATERIALS AND METHODS
Leptotheca informis Auerbach, 1910
All necropsies were performed on formalin-fixed, alcoholpreserved fishes at the University of California, Santa Barbara. The parasites were stained by the standard Giemsa’s method and examined in a Zeiss microscope equipped with phase contrast optics and 1,259X bright-field objective. In addition to the range and means, we have included the sample’s variation, s2. Measurements are given in micrometers ( p m ). Hosts, infection
Trophozoite-27.0 (25.0-28.0) X 21.0 (17.7-24.0) ; disporous. Spore-sutural diameter 9.7 (7.0-16.5), s* = 3.1; width 16.2 ( 10.0-20.0), s = 3.7; thickness 9.7 (7.0-10.5), s2 = 2.4; diameter of polar capsules 3.6 (2.5-5.0), s2 = 2.0; coils in polar filaments, 5-8.
* This investigation was supported in part by the NSF Grant No.
CA 34144 and Sea Grant 046-158-20.
Leptotheca armatura Yoshino and Moser, 1974
Spore-sutural diameter 12.2 (10.0-13.5), 9 = 3.4; width 17.7 (10.0-25.5), s2 = 14.0; thickness 13.0; diameter of polar capsules 5.7 (3.0-8.0), s2 = 4.1; coils in polar filaments, 7-9.
Leptotheca
FROM
FISHES
49 1
Leptotheca coelorhynchus Yoshino and Noble, 1973 Trophozoite-17.0 ( 1 2.2-25.0) x 27.0 (16.7-38.0); disporous. Spore-sutural diameter 7.9 (6.0-8.7), s2 = 1.3; width 13.0 (9.0-15.0), s2 = 3.4; thickness 6.9 (6.4-8.0), s2 = 2.2; diameter of polar capsule 2.9 (1.5-4.0), s2 = 2.8.
2
Leptotheca minuta sp. n. (Fig. 1) Diagnosis. Trophozoite-coelozoic; round or pyriform; ectoplasm hyaline; may have filamentous posterior processes; dissutural porous; 13.0 (11.0-14.5) X 11.0 (8.0-12.0). Spore-in view, anterior margin convrx and posterior margin slightly convex or flattrned; in anterior view, elliptical; in end view, elongate; shell valves equal; straight, distinct sutural line between round polar capsules; binucleated; sporoplasm finely to moderately granular, diffuse; sutural diameter, 4.8 (4.0-6.5) 9 s2 = 1.9; width 6.7 (5.0-8.5), 3’ = 3.1; thickness 4.3 (3.5-5.0),
Figs. 1-3. [Line diagrams of Leptotheca minuta sp. n.] 1. Disporous trophozoite. 2. Anterior view of spore. 3. Pyriform disporous trophozoite. Note the polar filaments in the spores.
TABLE1 . Collection and infection rates of deep-sea fishes with Leptotheca spp. _ _ _ _ _ ~ _ _ _ _ _ ~ ~ .
Hosts of Leptotheca spp.
Leptotheca minima Meglitsch, 1960 Coryphaenoides acrolepis (Bean) Corpyhaenoides armatus (Hector) Leptotheca informis Auerbach, 1910 Anoplopoma fimbria (Pallas) Coelorinchus scaphopsis (Gilbert) Coryphaenoides acrolepis (Bean) Coryphaenoides fernandezianus (Giinther) Coryphaenoides filifer (Gilbert ) Coryphaenoides pectoralis (Gilbert) Leptotheca armatura Yoshino & Moser 1974 Coryphaenoides acrolepis (Bean) Coryphaenoides leptolepis Giinther Coryphaenoides pectoralis (Gilbert) Leptotheca coelorhynchus Yoshino & Noble 1973 Coelorinchus coelorhincus (Risso) Coryphaenoides armatus (Hector) Ventrifossa nigrodorsalis Gilbert & Hubbs Leptotheca minuta sp. n. Coelorinchus occa IGoode & Bean) Nerumia condylura Jordan & Gilbert
Infection sites*
Localityt
~-
gb & bile ducts gb & bile ducts
Off no. Mexico, so., no. Ca., Ore. Off no. Mexico, so., centr., no. Ca., Ore.
gb
Off so. Ca.
300
gb
Off Mexico
440
gb & bile ducts gb
Off no. Mexico, so., centr., no. Ca., Ore. Off Chile
gb
Off Ore.,
gb
Canada Off no. Ca., Wash.
1000-
10002600 3704 28072825 5402500
1000-
Off
gb
Off no. Ca.
39284054 5402500
gb
Off Ireland
-
gb
Off so. Australia Off Boreno
-
gb
gb gb
so.
Ca.
2000
Off no. Ca.
Off Lesser Antilles Off Japan
t so. = southern; centr. = central; no. = northern; Ca. = California;’ Ore. = Oregon.
Infected/ examined (% infected)
2600 28074550
gb & bile ducts gb
~
* gb = gall bladder.
~
Depth of capture (meters)
6 94
884 400
2/36 (5) 1/12 (8) 14/31 (45)
.~
492
Leptotheca
FROM
= 1.5; diameter of polar capsule, 1.2 (1.0-2.0), s2 = 0.4; coils in polar filaments, 4-5. Syntype specimens deposited in USNM Helm. Coll. No. 2620.
FISHES
Remarks The new species is closest in size and shape to Leptotheca minima Meglitsch 1960, from the gall bladder of Arripis trutta found off New Zealand, from which it differs in being smaller in width and sutural diameter. Because of these differences we believe our species to be new and name it L. minuta.
REFERENCES 1910. Die Cnidosporidien (Myxosporidien, Actinomyxidien, Microsporidien). Eine monographische Studie. W . Klinkhardt, Leipzig. 2. Meglitsch PA. 1960. Some coelozoic Myxosporidia from New England fishes. Part I. General, and Family Ceratomyxidae. Trans. R. SOG.N. 2. Zool. 88, 265-356. 3. Yoshino TP, Noble ER. 1973. Myxosporida of macrourid fishes from southern California and Mexico. I. Parasitol. 59, 84450. 4. , Moser M. 1974. Myxosporida (Protozoa) in macrourid fishes (Coryphaenoides spp.) of the northeastern Pacific. ]. Parasitol. 60, 655-9.
Committees and Representatives of the Society of Protozoologiets for 1976/77
Program: Anthony D. Soldo (Veterans Administration Hospital, 1201 Northwest 16th St., Miami, F L 33125); Phyllis
The President of the Society has appointed the members of the Standing and Ad Hoc Committees for the year 1976/77 and the Society’s Representatives to the various organizations which require such representation. The Society’s membership is hereby informed about these appointments and is asked to communicate with the chairmen of the Committees and/or the Society’s Representatives to express their opinions or wishes with regard to matters within the purview of a committee or an organization in which the Society is involved.-R. BARCLAY McGHEE, Secretary.
Tellers: Chairman: R. Barclay McGhee (Department of Zoology, University of Georgia, Athens, G A 30602) ; Jerome Paulin, Hope T. Ritter. Systematics and Evolution: Norman D. Levine, Chairman (College of Veterinary Medicine, University of Illinois, Urbana, ZL 61801); John 0. Corliss, F. E. G. Cox, B. M. Honigberg, J. Grain, J. Vivra, F. C. Page, G. Poljansky, F. G. Wallace. In Memoriam Committee: B. M. Honigberg, Chairman (Zoology Department, University of Massachusetts, Amherst, M A 01003); John 0. Corliss, R. Barclay McGhee. American Association for the Advancement of Science: Eugene B. Small, Department of Zoology, University of Maryland, College Park, M D 20742. American Institute of Biological Sciences: William C. Marquardt, Department of Zoology, Colorado State University, Ft. Collins, CO 80521. American Type Culture Collection, Board of Trustees: Audrey Barnett, Department of Zoology, University of Maryland, College Park, M D 20742. Commission on Protozoology of the International Union of Biological Sciences: William Trager, T h e Rockefeller University, 1230 York Avenue, N e w York, N Y 10021; Dorothy R. Pitelka, Cancer Research Lab., University of California, Berkeley, CA 94720; B. M. Honigberg, Zoology Department, University of Massachusetts, Amherst, M A 01003; John J . Lee, Department of Biology, City College of N e w York, NY 10031. (These delegates are also Officers of the Commission and of the V Congress of Protozoology,
s2
Associated Societies: Stuart S. Bamforth, Chairman (Department of Biology, Newcomb College, Tulane University, New Orleans, L A 70118); C. Chapman-Andresen, Stanislaw Dryl, Keith Vickerman, M. Samish; R. Barclay McGhee, ex officio. Business Advisory Committee: William C. Marquardt, Chairman (Department of Zoology, Colorado State University, Ft. Collins, CO 80521); Neal Band, Larry McDougald; E. C. Bovee, ex officio, B. M. Honigberg, ex officio. Editorial Board for Special Publications: Seymour H. Hutner, Chairman (Haskins Labs. at Pace University, Pace Plaza, New York, h7Y 10037); W. Balamuth, R. L. Conner, P. C. C. Garnham, J. J. Lee, N. D. Levine, R. B. McGhee. Education Committee: Fred Schuster, Chairman (Biology Department, Brooklyn College, Brooklyn, N Y 11210) ; Frank Keegan, Mary Jo Koroly, Stuart Krassner, Anthony T. Soldo, Twitty J. Styles. Honorary Membership: Norman D. Levine (College of Veterinary Medicine, University of Illinois, Urbana, ZL 61801 ) ; Dorothy Pitelka, William Cosgrove, Karl Grell. Membership: George C. Hill (Department of Pathology, College of Vet. Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO 80521 ) ; William Lushbaugh, Donald Spoon, Gaytha Langlois, Govinda S. Visvesvara, Richard A. Albach. Nominating: Robert L. Conner (Biology Department, Bryn Mawr College, Bryn Mawr, P A 19010); Earl D. Hanson, Keith Vickerman.
1 . Auerbach M.
Bradbury, R. Barclay McGhee.
New York, 1977, serving respectively as President, Executive Vice-president, Vice-president and Chairman of the Scientific Program Committee, and Secretary General.)
National Academy of Sciences-National Research Council: John 0. Corliss, Department of Zoology, University of Maryland, College Park, M D 20742. World Federation of Parasitologists: R. Barclay McGhee, Department of Zoology, University of Georgia, Athens, G A 30602.
