582 
bulletin of the bureau of fisheries. 
Plagiostomum stellatum Graff. 
igu, p. 393 (sp. nov.). 
Eel Pond, Red Ledge, and Grassy Island, fairly 
abundant on Zostera. 
Plagiostomum morgani Graff. 
1911, p. 39s (sp. nov.). 
Found by Graff at Eel Pond and Juniper (But- 
lers Point.) 
Plagiostomum wilsoni Graff. 
1911, p. 396 (sp. nov.). 
Grassy Island and Little Harbor, on Ulva; one 
of the commonest species. 
Plagiostomum whitmani Graff. 
1911, p. 397 (sp. nov.). 
Little Harbor, on Ulva, 10 specimens. 
Monoophorum triste Graff. 
1911, p. 401 (sp. nov.). 
Grassy Island and Juniper (Butlers) Point, 
3 specimens. 
Monocelisfusca Oersted. 
1911, p. 408. 
Eel Pond, especially under bridge. 
Alonocelis wilhelmii Graff. 
1911, p. 410 (sp. nov.). 
Red Ledge, collected by Dr. Wilhelmi. 
Myrmeciplana elegans Graff. 
1911, p. 410 (sp. nov.). 
Falmouth, in brackish water, collected by 
Dr. Wilhelmi. 
Class TREMATODA. 
Dactylocotyle denticulatum (Olsson). 
Linton, 1900, p. 286 (Octobothrium denticulatum); 
Linton, 1901, p. 414, 474. 
From gills of Pollackius virens (locality not 
stated). 
Dermocystis ctenolabri Stafford. 
Ryder, 1884, p. 37; Linton, 1900, p. 281, 296; 
1901, p. 462, 463. (By both writers referred 
to as an unidentified trematode). 
Immature stages encysted in the skin of the 
cunner ( Tautogolabrus ads persus) and the tau- 
tog ( Tautoga onitis), often in such numbers as 
to give the fish a spotted appearance. Tire 
adult has been found in abundance by Dr. 
Linton in the intestine of a loon (Gavia immer) 
captured at Woods Hole in 1911. 
Diclidophora a finis Linton. 
Linton, 1898, p. 511 (Octo plenum affine, sp.nov.); 
Linton, 1901, p. 414, 482. 
From mouth of Paralichthys dentatus. 
Dionchus agassizi Goto. 
Goto, 1900, p. 286 (sp. nov.). 
From the gills of Remora brachyptera, Newport. 
Diplostomum sp. 
Linton, 1901, p. 415, 44 2 . 47 1 - 
Undetermined species, referable to this genus, 
found in liver of Fundulus heteroclitus (cysts), 
and in intestine of Prionotus carolinus. 
Distomum a p pendiculatum Rudolphi. 
Linton, 1900, p. 289; Linton, 1901, p. 415, etc. 
Hosts: Achirus fasciatus (intestine), Anchovia 
brownii, Brevoortia tyrannus (intestine), Clu- 
panodon pseudohispanicus , Clupea harengus 
(intestine), Cynoscionregalis ( intestine), Decap- 
lerus macarellus (intestine), Microgadus tomcod 
(intestine), Myoxocephalus ceneus (intestine), 
Distomum ap pendiculatum — Continued. 
Paralichthys dentatus (intestine), Pomolobus 
mediocris (stomach and pylorus), Pomolobus 
pseudoharengus, Prionotus carolinus (intes- 
tine), P seudopleuronectes americanus (intes- 
tine), Scomber scombrus, Stenotomus chrysops, 
Trachurops crumenophthalmus, Urophycis chuss 
(intestine). 
Distomum areolatum Rudolphi. 
Linton, 1900, p. 293; Linton, 1901, p. 415, etc. 
Hosts: Menticirrhus saxatilis, M or one americana 
(intestine), P seudopleuronectes americanus, 
Tautogolabrus adspersus (intestine). Common. 
Distomum bothryophoron Olsson. 
Linton, 1901, p. 415, etc. 
Hosts: Clupea harengus, Pomolobus pseudoharen- 
gus. 
Distomum clavatum Rudolphi. 
Linton, 1898, p. 539; Linton, 1901, p. 415, etc. 
Hosts: Thunnus thynnus, Slip bias gladius 
(stomach). 
Distomum contortum Rudolphi. 
Linton, 1898, p. 528; Linton, 1901, p. 415, 466. 
From intestine of Mo la mo la. 
Distomum dentatum Linton. 
Linton, 1900, p. 294 (sp. nov.); Linton, 1901, 
p. 415, 483- 
From intestine of Paralichthys dentatus (few). 
Distomum f enestratum Linton. 
From Brevoortia tyrannus. 
Distomum f oecundum Linton. 
Linton, 1900, p. 289 (sp. nov.); Linton, 1901, 
p. 415, 47 2 - 
From intestine of Lopholatilus chamceleonticeps, 
one specimen. 
