NO. 14 MANTER : DIGENETIC TREMATODES OF FISHES 451 



Spheroides angusticeps, puffer (2) 



Apocreadium longisinosum Manter (in 2) 

 Bianium adplicatum (in 1) 



Stargazer, unidentified (4) 



Helicometra fasciata (Rud.) (in 1) 

 Symphurus atramentatus* tonguefish (3) 



Paramonorcheides bivitellosus (in 2) 

 Thyrinops pachylepis* silversides (10) 



Anisoporus thyrinopsi (in 1) 

 Trachinotus palomaj pompano (1) 



Lobatostoma pacificum (in 1) 



Trachinotus rhodopus, pompano (5) 



Aponurus trachinoti (in 1) 



Gonocercella pacifica (in 1) 



Opechona pharyngodactyla (in 3) 



Opegaster parapristipomatis Yamaguti (in 2) 



Tetrochetus proctocolus (in 1) 

 Tylosurus fodiator, needlefish (7) 



Axine abberans Goto ( in 1 ) 



Haplosplanchnus acutus (Linton) (in 1) 



Xenistius calif orniensis (6) 



Opecoelus xenistii (in 1) 



Xurel marginatus, jack (3) 



Protomicrocotyle pacifica Meserve (in 2) 



Zalocys stilbe, pompano (1) 



Elytrophallus mexicanus (in 1) 

 Opechona pharyngodactyla (in 1) 



SUMMARY AND CONCLUSIONS 



Eighty-two species of digenetic trematodes are reported from 80 

 different species of marine fishes of the tropical American Pacific. Fifty- 

 three new species and 7 new genera are named. The number of new 

 genera compared with the number of new species is rather small consider- 

 ing the new locality. For example, among 33 new species from deep- 

 water fishes at Tortugas listed by Manter (1934) there were 11 new 

 genera. This rather small number of new genera in the tropical Pacific 

 may possibly suggest that the number of unnamed genera in this group 



