BIOLOGICAL SURVEY OR WOODS HOLE AND VICINITY. 
593 
Ascaris habena Linton. 
Linton, 1900, p. 302 (sp. nov.); Linton, 1901, p. 
410, 468. 
Hosts: Gadus callarias, Lophopsetla maculata, 
Myoxocephalus ceneus, Myoxocephalus octo- 
decimo pinosus, Opsanus tau (stomach and 
intestine, common), Palinurichthys percifor- 
mis, Pomolobus mediocris, Prionotus carolinus, 
Pseudo pleuronectes americanus, Scombero- 
morus maculatus, Spheroides maculatus, 
Urophycis chuss, Urophycis tenuis. 
Ascaris increscens Molin. 
Linton, 1901, p. 410, etc. 
Hosts: Corypheena hippurus (stomach); Lophius 
piscatorius. 
Ascaris incurva Rudolphi. 
Linton, 1901, p. 410, etc. 
Hosts: Hippoglossoides platessoides (rectum, 
rare), Seriola zonata (stomach), Scombero- 
morus maculatus (intestine, rare), Seriola 
lalandi, Tetrapterus imperator (intestine and 
rectum, rare), Xiphias gladius (stomach, 
common). 
Ascaris inquies Linton. 
Linton, 1901, p. 410, 452 (sp. nov.). 
From stomach of Rachycentron canadus (many). 
Ascaris neglecta Leidy. 
Linton, 1901, p. 410, 465. 
From intestine of Chilomycterus schcepfi. 
? Ascaris rigida Rudolphi. 
Linton, 1901, p. 410, 488. 
Host: Lophius piscatorius . 
Ascaris rotundata Rudolphi. 
Linton, 1901, p. 410, etc. 
Hosts: Raja eglanteria; Raja erinacea (stomach 
and intestine), Raja lam is, Raja ocellata. 
Ascaris sp. 
Linton, 1901, p. 410, etc. 
Unidentified (for the most part immature) 
worms referred to this genus are recorded for 
the following hosts: Alosa sapidissima, Bros- 
mius brosme, C archarias littoralis, Clupea 
harengUs, Dasyatis centrura, Hemitripterus 
americanus, Lagocephalus Icevigatus, Macrou- 
rus bairdii, Menticirrhus saxatilis, Microgadus 
tomcod, Mustelus canis (peritoneal capsules), 
Myoxocephalus aneus, Osmerus mordax, Para- 
lichthys dentatus (intestine), Pomolobus medi- 
ocris (stomach), Pseudo pleuronectes ameri- 
canus, Roccus lineatus, Sarda sarda (stomach), 
Scomber scombrus, Stenotomus chrysops, Tylo- 
surusacus, Urophycis tenuis. 
Dacnitis Ilians Dujardin. 
Linton, 1901, p. 410, 436. 
From intestine of Leptocephalus conger. 
Dacnitis s phcerocephala Dujardin. 
Linton, 1901, p. 410, 435. 
From intestine of Acipenser sturio. 
Filaria rubra Leidy. 
Linton, 1901, p. 410, etc. 
Hosts: Centro pristes striatus (under skin), Roccus 
lineatus (from flesh). 
Filaria, sp.undet. 
Host: Menidia menidia nolata . — Linton. 
Heterakis foveolata (Rudolphi). 
Linton, 1901, p. 410, etc. ( Cucullanus globosus ). 
Hosts: Carangus crysos, Gadus callarias, Hippo- 
glossus hippoglossus, Lophius piscatorius (in- 
testine), Melanogrammus ceglefinus, Pomolo- 
bus cestivalis, Urophycis chuss. 
Heterakis, sp. undet. 
Linton, 1901, p. 410, 441, 453 ( Cucullanus , sp.). 
Hosts: Fundulus diaphanus, Fundulus hetero- 
clitus, Fundulus majalis, Morone americana, 
Poronotus triacanthus. 
Ichthyonema globiceps (Rudolphi). 
Linton, 1901, p. 410, etc. 
Hosts: Lobotes surinamenus (peritoneum), Poma- 
tomus saltatrix (ovaries), Scomberomorus macu- 
latus (ovary, rare), Tarpon atlanticus. 
? Ichthyonema sanguineum (Rudolphi). 
Linton, 1900, p. 304; Linton, 1901, p. 410, 482. 
From mouth of Paralichthys dentatus. 
Ichthyonema sp. 
Linton, 1901, p. 410, 428, etc. 
Undetermined worms referred to this genus were 
found in Chcetodipterus faber (abdominal cav- 
ity), Hippoglossoides platessoides (intestine), 
Microgadus tomcod, Poronotus triacanthus, 
Pseudopleuronectes americanus’, Roccus lineatus > 
Sarda sarda (beneath skin in gill cavity), 
Sphyrna zygoena (liver), Urophycis tenuis. 
Lecanocephalus annulatus (Molin). 
Linton, 1901, p. 410, 435. 
Hosts: Anguilla chrysypa, Morone americana, 
Palinurichthys perciformis, Poronotus triacan- 
thus, Roccus lineatus (peritoneum, very rare). 
