5 88 



BULLETIN OF THE BUREAU OF FISHERIES. 



Rhynchobothrium imparispine Linton. 



Linton, 1890, p. 840 (sp. nov.); Linton, 1897, 

 p. 799; Linton, 18973, p. 450; Linton, 1901, 

 p. 412, etc. 



Adult worms in following species: Dasyatis 

 centrum, Myliobatis freminvillei, Raja eglan- 

 teria, Raja erinacea (spiral valve), Raja Iczvis 

 (spiral valve), Raja ocellata, Squalus acanthias. 

 Cysts and larvae in the following species: 

 Ammodytes americanus, Anguilla chrysypa, 

 Centropristes striatus (in viscera), Clupea 

 harengus (stomach wall), Gadus callarias (peri- 

 toneum), Hemi trip terns americanus, Lepto- 

 cephalu! conger (serous coat of intestine), 

 Limanda ferruginea (in viscera), Lophius 

 piscatorius, Lophopsetta maculata, Melano- 

 grammus ceglefintts (peritoneum), Menidia 

 menidia notata, Merluccius bilinearis, Micro- 

 gadus tomcod (in viscera), Myoxocephalus 

 cEneus, Myoxocephalus octodecimspinosus, Os- 

 merus mordax, Paralichthys dentatus (in vis- 

 cera), Pollachius virens, Pomolobus pseudo- 

 harcngus, Prionotus strigatus, Pseudopleitro- 

 nectes americanus, Raja erinacea, Sarda sarda, 

 Scomber scombrus, Stenotomus chrysops (in 

 viscera), Tautogolabrus adspersus, Tetronarce 

 occidcntalis (intestinal wall), Urophycis chuss, 

 Urophycis tennis, Xiphias gladius. 



Rhynchobothrium lomentaceum Diesing. 



Linton, 1890, p. 845; Linton, 1901, p. 412, 425. 

 From spiral valve of Mustehis cants. 



Rhynchobothrium longicorne Linton. 



Linton, 1890, p. 847 (sp. nov.); Linton, 18973, 



p. 450; Linton, 1901, p. 412, 429. 

 From spiral valve of Carcharias littoralis. 



Rhynchobothrium longispine Linton. 

 Linton, 1890, p. 835 (sp. nov.); Linton, 1901, 



P- 413. 433- 



Adults from spiral valve of Dasyatis centrura; 

 cysts from the following hosts: Menticirrhus 

 saxatilis, Paralichthys dentatus, Poronolus tria- 

 canthus, Prionotus strigatus, Scomberomorus 

 maculatus, Stenotomus chrysops, Urophycis 

 chuss. 



Rhynchobothrium speciosum Linton. 



Linton, 1897, p. 801 (sp. nov.); Linton, IQOI, p. j 

 413, etc. 



Adults from Carcharhinus obscurus; cysts in the 

 viscera of the following hosts: Chactodiptcrus 

 faber, Cynoscion regalis, Lophius piscatorius, 

 Paralichthys dentatus, Pomatomus saltairix, 

 Remora remora, Roccus lineatus, Scomber 

 scombrus, Scomberomorus maculatus, Stenoto- 

 mus chrysops, Trichiurus lepturus, Tylosurus 

 acus. 



Rhynchobothrium tenuispine Linton. 



Linton, 1890, p. 837 (sp. nov.); Linton, 18973, 



p. 448; Linton, 1901, p. 413, etc. 

 Hosts: Carcharhinus milberti (spiral valve), 

 Dasyatis centrura (spiral valve), Raja erinacea. 



Rhynchobothrium tumidulum Linton. 



Linton, 1890, p. 829 (sp. nov.); Linton, 18973, 



p. 448; Linton, 1901, p. 413, etc. 

 Adults found in spiral valve of Carcharhinus 



obscurus, Mustelus canis, and Raja erinacea; 



scolices in intestine of Opsanus tau; cysts in 



Spheroides maculatus. 



Rhynchobothrium wagcneri Linton. 



Linton, 1890, p. 843 (sp. nov.); Linton, 1901, 



P- 413. 433- 

 From spiral valve of Dasyatis centriira. 



Rhynchobothrium, sp. undet. 



Cysts from the following hosts: Cynoscion 

 regalis, Lophius piscatorius, Pseudopleuronec- 

 tes americanus, Scriola lalandi, Spheroides 

 maculatus. 



Scolex polyinorphus Rudolphi. 



Linton, 1901, p. 413, etc. 



Hosts: Ancho-via argyrophanus, Anckovia brownii 

 (larvae in intestine), Anguilla chrysypa, Brc- 

 voortia tyrannus (intestine, larvae), Cen- 

 tropristes striatus (free in intestine), Clupea 

 harengus (intestine, larvae), Cynoscion regalis 

 (free in gall bladder and cystic duct), Decap- 

 terus macarellus (free in intestine), Decap- 

 terus punctatus, Etrumeus tercs, Fundulus 

 heteroclitus (intestine, larvae), Hippoglossus 

 hippoglossus, Lagocephalus Icevigatus (intes- 

 tine, abundant), Leptocephalus conger ^in- 

 testine, larvae), Limanda ferniginea (intes- 

 tine), Lophius piscatorius (free in intestine, 

 larvae), Lopholatilus cham&leonticeps (free in 

 intestine), Melanogrammus (Eglcfinus, Men- 

 ticirrhus saxatilis (intestine), Merluccius bili- 

 nearis (free in intestine), Microgadus tomcod 

 (free in intestine), Opsanus tau, Palinurich- 

 thys perciformis (alimeiitsry tract), Para- 

 lichthys dentatus (cystic duct and free in 

 intestine), Paralichthys oblongus (intestine), 

 Pomatomus saltatrix (larvae in intestine), 

 Pomolobus mediocris (larvae in intestine), 

 Pomolobus pscudoharengus (larvae in intes- 

 tine), Poronotus triacanthus (free in intestine), 

 Raja hcvis, Sarda sarda (Isrvae free in in- 

 testine, rare), Scomber scombrus (larvae free in 

 intestine), Spheroides maculatus (free in in- 

 testine), Stenotomus chrysops (free in intestine), 

 Tautoga onitis, Trichiurus lepturus, Tylosurus 

 marinus (larvae in intestine), Urophycis chuss, 

 Xiphias gladius. 



