62 



Roosevelt Wild Life Bulletin 



MoLLUsKs Examined 



Parasites Collected 



Num- 

 ber ex- 

 amined 



Num- 

 ber in- 

 fected 



Annelida 

 (Chaeto- 

 gaster) 



Larval 

 Trema- 

 todes 



Hydrach- 

 nids 



Anodonta calaracla Say 



Anodonta implicaia Say 



Lampsilis luteola (Lamarck) 



Lampsilis radiata (Gmelin) 



Sphaerium vermontanum Prime . . 



Unio ccrmplanatus (Dillwyn) . . . . 



Amnicola limosa (Say) 



Ancylus parallelus Haldeman. . . . 



Bythinia tentaculala (Linn.) 



Campeloma integrum (Say) 



Goniobasis livescens (Menke) 



Lymnaea catascopium Say 



Lymnaea columella Say 



Lymnaea emarginata Say 



Lymnaea haldermani Binney 



Lym.naea paluslris (O. F. Miiller) 

 Lymnaea stagnalis lilliana Baker. 



Physa warreniana Lea 



Planorbis antrosus Conrad 



Planorbis campanulatus Say 



Planorbis hirsuius Gould 



Planorbis parvus Say 



Planorbis trivolvis Say 



Valvata iricarinala (Say) 



Vivipera contecloides Binney 



Few 

 IS 



Few 

 Many 

 Many 



o 

 Many 



o 

 Many 



o 

 Many 

 Many 

 Many 



Few 



DETAILED RESULTS OF THE INVESTIGATION 



The following notes give in detail the results of the examination 

 of the internal parasites found in (i) the fish, (2) the birds, reptiles 

 and frogs, and (3) the mollusks mentioned in these tables. 



Parasites of Fishes. Abraniis chrysoleucas (Mitchill) : Golden 

 Shiner. Two fish were examined, in one of which no parasites were 

 found. In the intestines of the other (No. 1219) were taken many 

 Acanthocephala (Vial 31) belonging to the genus Poinphorhynchus. 

 The worms were about 8 mm. long and were light brown or orange 

 in color. But one species of this genus has been described from 

 American fishes ; two species are known in Europe which infect 

 several species of fresh-water fishes. No Nematodes, Cestodes or 

 Trematodes were taken. 



Amhloplites rupestris (Raf.) : Rock Bass. All of the four indi- 

 viduals examined (No. I205f) were relatively httle infected with 

 internal parasites. A single Trematode belonging to the species 

 Crepidastonnmi cornutuni (Osborn) was found in the stomach of 

 one of them. This worm has been taken before in the rock bass and 

 several other species of common fresh-water fish in Canada and 

 the eastern United States, and is undoubtedly a widely distributed 

 parasite. Crayfish and may-fly nymphs (Hexagenia) are believed 

 to be its intermediate hosts and numbers of both these animals were 

 found in the stomachs of the rock bass examined (JSTos. 1201, 1202, 

 1232). The same species of Trematode was also taken, and in large 

 numbers, in the small-mouthed black bass from Oneida Lake. 



