BIOLOGICAL SURVEY OF WOODS HOLE AND VICINITY. 



589 



Spongiobothrium -variabile Linton. 



Linton, 1889, p. 462 (sp. nov.); Linton, 1890, 

 p. 778; Linton, 18973, p. 442; Linton, 1901, 



P- 413. 433- 

 From spiral valve of Dasyatis centrum. 



Synbothri um filicolle Linton. 



Linton, 1890, p. 861 (Syndesmobothrium filicolle, 

 sp. nov.); Linton, 1897, p. 815; Linton, 1901, 

 p. 413, etc. 



Scolex in spiral valve of Dasyatis centrum; 

 cysts in viscera of following species: Brevoortia 

 tyrannus, Carcharhinus obscurus, Cynoscion 

 rcgalis, Galeocerdo tigrinus, Lobotcs surinam- 

 ensis, Mustelus canis, Paralichthys dentatus 

 Pomatomus saltatrix, Scombcromorus cavalla, 

 Scomberomorus maculatus, Scombcromorus rc- 

 galis, Seriola dumerili. 



TcEnia chamissonii Linton. 



Linton, 1905 (sp. nov.). 



About 25 cysts found in mesentery of a "skunk 

 porpoise" (Lagenorhynchus acutus) captured at 

 Menemsha Bight, October 7, 1901. 



Tfcnia dilalata Linton. 



Linton, 1889, p. 488 (sp. nov.); Linton, i897a, 



p. 425; Linton, 1901, p. 414, 435. 

 From intestine of Anguilla chrysypa. 



Tasnia sp. 



Linton, 1901, p. 414,428,435. 

 Undetermined worms referred to this genus 

 found in Anguilla chrysypa, Fundulus dia- 

 phanus, and in Sphyrna zygcena (mucous mem- 

 brane of intestine). 



Tetrarhynchus bicolor (Bartels). 



Linton, 1901, p. 414, etc. 



Adult taken once in Carcharhinus obscurus; cysts 

 and scolices found in the following hosts: 

 Carcharinus obscurus, Coryph<zna hippurus 

 (peritoneum), Galeocerdo tigrinus (stomach), 

 Paralichthys dentalus (alimentary canal), Sarda 

 sarda, Xiphias gladius( peritoneum and mesen- 

 tery). 

 Tetrarhynchus bisulcatus Linton. 



Linton, 1889, p. 479 (Rhynchobothrium bisulca- 

 tum, sp. nov.); Linton, 1890, p. 857; Linton, 

 1897, p. 810; Linton, 18973, p. 452; Linton, 

 1901, p. 414, etc. 



Adults very abundant in the pylorus and intes- 

 tine of Carcharhinus obscurus; cysts and sco- 

 lices in the viscera of the following species: 

 Cynoscion regalis, Decaplerus macarellus, Lo- 

 phius piscatorius, Lopholatilus chamce.kon- 

 ticeps, Paralichth\s dentatus, Paralichthys 

 oblongus, Pomatomus saltatrix, Poronotus 

 triacanthus, Prionotus carolinus, Prionotus 



Tetrarhynchus biscukatus Continued. 



strigatus, Pseudopleuronectes americanus, 

 Scomber scombrus, Seriola zonala, Spheroides 

 maculatus, Sienotomus chrysops, Tetronarce 

 occidentalis , Urophycis chuss, Xiphias gladius. 

 Tetrarhynchus elongatus (Wagener). 



Linton, 1897, p. 812; Linton, 1901, p. 414, 466. 

 From liver of Mo la mola (common). 



Tetrarchynchus erinaceus Beneden. 

 Linton, 1897, p. 811; Linton, 1901, p. 414, etc. 

 Cysts in viscera of Cynoscion rcgalis, Pomatomus 

 saltatrix and Poronotus triacanthus. 



Tetrarhynchus lintoni Vaullegeard. 



Linton, 1890, p. 853 (T. tenue, sp. nov.); Linton, 



18973, p. 452; Linton, 1901, p. 414, 433 



(T. tenuis). 

 Spiral valve of Dasyatis centrum. 



Tetrarhynchus robust us Linton. 



Linton, 1890, p. 855 (sp. nov.); Linton, 18973, 



p. 452; Linton, 1901, p. 414, etc. 

 Adults from Carcharhinus obscurus, Dasyatis 

 centrum (stomach and pylorus), Isurus dekayi 

 (scolex in spiral valve), Myliobatis fremin- 

 villei, Raja Icevis, Rhinoptera bonasus; cysts 

 from Paralichthys dentatus. 



Tetrarhynchus sp. 



Linton, 1901, p. 414, etc. 



" Cysts too immature for identification or not yet 

 identified" recorded for the following hosts: 

 Carcharinus obscurus, Chaetodipterus fabcr, 

 Dasyatis centrum, Lophius piscatorius, Mus- 

 telus canis, Pomolobus mediocris, Poronotus 

 triacanthus, Pseudopleuronectes americanus, 

 Raja erinacea, Sarda sarda, Scombcromorus 

 regalis, Spheroides maculatus, Sphyrna zyg^na, 

 Teraptcrus imperator. 



Thysanocephalum crispum Linton. 



Linton, 1889, p. 464 (Phyllobothrium thysano- 

 cephalum, sp. nov.); Linton, 1890, p. 823; 

 Linton, 18913, p. 543; Linton, 18973, p. 448; 

 Linton, 1901, p. 414, 426. 

 From spirsl valve of Galeocerdo tigrinus. 

 Thysanoccphalum ridiculum Linton. 

 Linton, 1901, p. 414, 430 (sp. nov.). 

 From spiral valve of Isurus dekayi. 

 Trilocularia gracilis Olsson. 



Adult from Squalus acanthias. Linton, MS. 

 Tylocephalum pingue Linton. 



Linton, 1890, p. 806 (sp. nov.); Linton, 1901, p. 



4i4. 434- 

 From spiral valve of Rhinoptera bonasus. 



Cestode, undetermined (belonging to a new genus 



allied to Ligula}. 

 From Liparis liparis. 



