336 



FISHERY BULLETIN OF THE FISH AND WILDLIFE SERVICE 



ASPIDOGASTREA 



1. Lobatostoma ringens (Linton, 1907) Eckmann, 



1932. 

 Hosts: Calamus calamus, Saucer-eye porgy; 



Calamus bajonado, Jolt-head porgy. 

 Reported by Linton (1910). 



2. Stichocotyle cristata Faust and Tang, 1936. 



Host: Rhinoptera botiasus, Cow-nosed ray 



from Biloxi Bay, Miss. 

 Reported by Faust and Tang (1936). 



A large aspidogastrid, Lophotaspis vallei, occurs 

 in the loggerhead turtle, Caretta caretta. It will 

 be discussed with the trematodes of turtles. 



DIGENEA 



Approximately 200 species of digenetic trema- 

 todes are known from fishes of the Gulf of Mexico, 

 mostly from its eastern region. Linton (1910) 

 reported 53 species from fishes at Tortugas. All 

 except one of these were also collected by the 

 author. Manter (1947, 1949) lists 190 species of 

 digenetic trematodes, including 1 species of aspi- 

 dogastrid, from the fishes at Tortugas. This num- 

 ber is relatively large compared with the number 

 known from marine fishes of New England, Great 

 Britain, or the Mediterranean, although Yamaguti 

 has reported a larger number from Japanese fishes. 

 The richness of the trematode fauna of the Gulf 

 of Mexico is associated with the great variety of 

 fishes, mollusks, and Crustacea in that region. 

 These four groups are ecologically associated in 

 that trematodes require a molluscan host for their 

 larvae and frequently use Crustacea as second 

 intermediate hosts. Thus, trematode parasites 

 constitute a very common and widespread element 

 in the ecological picture of a region such as 

 Tortugas. 



Apparently only 13 other records of trematodes 

 from Gulf of Mexico fishes have been published 

 (Chandler, 1935, 1941; Melugin, 1940; Vigueras, 

 1940, 1940a, 1940b; Von Wicklen.^ 1946; Read, 

 1947). Of these species, four are known at Tor- 

 tugas. In the list following, the record is from 

 Tortugas or Key West unless otherwise noted. 



GASTEROSTOMATA 



Family BUCEPHALIDAE 



1. Bucephalo-psis longicirrus Nagaty, 1937; syn- 

 onym: Bucephalopsis arcuatus (Linton, 

 1900) Eckmann, 1932. New synonymy. 

 Also known from Red Sea. 

 Host: Sphyraena barracuda, Barracuda. 



2. Bucephalopsis "bennetti" Melugin, 1940. 



Host: Paralichihys lelhostigma, Flounder. 



Reported by Melugin (1940) from Grand 

 Isle, Louisiana. The name "bennetti" was 

 printed in this abstract by Melugin, but 

 the trematode was not described, hence 

 the name is a nomen nudum. 



3. Bucephalopsis longoviferus Manter, 1940. 



Host: Sphyraena barracuda. Barracuda. 



4. Bucephalus kathetostomae (Manter, 1934) Man- 



ter, 1940. 

 Host: Kalhetosloma albigulta, Stargazer. 



5. Bucephalus priacanthi Manter, 1940. 



Host: Priacanthus arenalus. Glass-eyed snap- 

 per. 



6. Bucephahis scorpaenae Manter, 1940. 



Host: Scorpaena plumieri. Scorpion fish. 



7. Bucephalus varicus Manter, 1940. 



Hosts: Caranx bartholomaei. Yellow jack; C. 

 latus, jack; C. ruber, Runner. 



8. Dollfustrema gravidum Manter, 1940. 



Host: Gymnothorax moringa, Moray. 



9. Prosorhynchus allanlicus Manter, 1940. 



Hosts: Mycleroperca microlepis. Gag; Myc- 

 leroperca venosa. Yellow-fin grouper. 



10. Prosorhynchus ozakii Manter, 1934. 



Host: Epinephelus niveatus. Snowy grouper. 



11. Prosorhynchus promicropsi (Linton, 1905) Eck- 



mann, 1932. Host: Prom i'crops rtazara, Jewfish. 



12. Rhipidocotyle anguslicolle Chandler, 1941. 



Host: Sarda sarda, Bonito. 

 Reported from the Texas coast near Freeport 

 by Chandler (1941). 



13. Rhipidocotyle adbaculum Manter, 1940. 



Host: Scomberomorus regalis, Cero. 



14. Rhipidocotyle baculum (Linton, 1905) Eck- 



mann, 1932. 



15. Rhipidocotyle barracudae Manter, 1940. 



Host: Sphyraena barracuda, Barracuda. 



16. Rhipidocotyle longleyi Manter, 1934. 



Host: Synagrops bellus. 



17. Rhipidocotyle nagaty i Manter, 1940. 



Host: Euthynnus alletteratus. Little tuna. 



18. Rhipidocotyle transversale Chandler, 1935. 



Host: Menidia menidia, Silverside. 

 Reported from Galveston Bay, Texas, by 

 Chandler (1935). 



PROSOSTOMATA 

 Family PARAMPHISTOMATIDAE 



19. Cleptodiscus reticulatus Linton, 1910. 



Host: Pomacanthus arcuatus. Black angelfish. 



