14 
PACIFIC SCIENCE, Vol. II, January, 1948 
15 to 20 fm. (Berkeley, 1923) and 555 meters 
(Berkeley, 1942). The present records are from 
southern Alaska and Bering Sea, in 13 to 68 fm. 
Genus Eunoe Malmgren 
Eunoe depressa Moore 
Eunoe depressa Moore, 1905^: 536-538, pi. 
34, fig. 17, 18, pi. 35, fig. 19, 20. 
Collections. Stations 33-40 (1); 34-40 (6); 
58-40 (1); 61-40 (2); 70-40 (1); 80-40 
(3); 97-40 (1); 98-40 (1); 103-40 (1); 
BT 70-41 (1); C 147-41 (1);C 150-41 (1); 
D 7-41 (4); D 15-41 (1); D 16-41 (1). 
The size of these individuals varies greatly, 
ranging from a few mm. long (juvenile) to 
comparatively gigantic; a large one measures 
68 mm. long, without the everted proboscis, 
which is 28 mm. long; width is 25 mm. with¬ 
out, 35 mm. with, parapodia. Elytra are thick, 
leathery in texture and have entire margin; they 
are pale but are mottled with rust-colored pig¬ 
ment. Their surface is covered with low, flat¬ 
tened nodules of varying sizes, and a few larger 
ones are more or less limited to the posterior 
half of the elytral surface. The prostomium has 
four dark eyes; the anterior pair is lateral, near 
the middle of the prostomial length. 
Some collections have data recording com¬ 
mensalism with hermit crabs; a small, probably 
juvenile, individual from station D 16-41 comes 
from the body cavity of a large Alaskan king 
crab, Paralithodes camtschatica (Tilesius). The 
large body size of some adults is perhaps corre¬ 
lated with a commensalistic habit. 
This species has remained unknown except 
through its original account, based on collections 
from Alaska, in 8 to 19 fm.; some of these were 
labeled hermit crab messmates (Moore, 1905: 
538). The present records are from south¬ 
western Alaska in 5 to 150 fm., and from 
Bering Sea in 15 to 60 fm. 
Genus Gattyana McIntosh 
Gattyana cirrosa (Pallas) 
Aphrodita cinhosa Pallas, 1766: 95-97, pi. 8, 
fig. 3-6. 
Gattyana cirrosa Moore, 1908: 337; Fauvel, 
1923: 49-50, fig. 17; Berkeley, 1942: 187. 
Collections. Stations 33-40 (4); 35-40 (2); 
51-40 (1); 61-40 (1); 128-40 (4); 131-40 
(1); Mist Harbor (1); Pavlof Bay (1). 
This species has been widely reported from 
the colder waters of the Northern Hemisphere, 
including both sides of North America. The 
present records are from southwestern Alaska in 
15 to 50 fm. 
Gattyana iphionelloides (Johnson) 
Harmothoe iphionelloides Johnson, 1901: 391— 
392, pi. 1, fig. 2-7. 
Gattyana iphionelloides Berkeley, 1945: 321. 
Collection. Station 106-40 (1). 
This species is known from Washington 
(Johnson), western Canada (Berkeley), and a 
reef in Alitak Bay, Alaska; it is intertidal. 
Genus Hermadion Kinberg 
Hermadion truncata (Moore) 
Harmothoe ( Eunoa ) truncata Moore, 1902: 
272-274, pi. 14, fig. 21-28. 
Hermadion truncata Moore, 1908: 332-333; 
Berkeley, 1923: 215; Berkeley, 1945: 323. 
Collection. Station 91-40 (1). 
Originally the type locality was given as 
northern Greenland (Moore, 1902) but was 
later (Moore, 1908) corrected to Icy Cape, 
Alaska. Berkeley (1923) has recorded the spe¬ 
cies from British Columbia. The present record 
is from Baralof Bay, in 24 fm. 
Family POLYODONTIDAE 
Genus Peisidice Johnson 
Peisidice aspera Johnson 
Peisidice aspera Johnson, 1897: 184-185, pi. 
9, fig. 56-59, pi. 10, fig. 63; Moore, 1908: 
338; Berkeley, 1923: 216; Berkeley, 1942: 
189. 
