206 PROCEEDINGS OF THE NATIONAL MUSEUM VOL. 97 
PSEUDOPALLENE CIRCULARIS (Goodsir) 
Figure 19 
Pallene circularis Goopsir, 1842, p. 136, pl. 3. 
Pallene hispida Stimpson, 18538, p. 37. 
Pseudopallene hispida Wiuson, 1878a, p. 200; 1878b, p. 16, pi. 3, fig. 1, a-e. 
Pseudopallene discoidea Wiison, 1878b, p. 12, pl. 3, fig. 3, a-c. 
Pseudopallene hispida Witson, 1880, pp. 478-479, pl. 2, fig. 9. 
Pseudopallene discoidea WiLson, 1880, pp. 479-480, pl. 2, fig. 10. 
Pseudopallene circularis Sars, 1891, pp. 38-42, pl. 3, fig. 3, a-h. 
Pseudopallene hispida WuitEAveEs, 1901, p. 263. 
Phoxichilus circularis Norman, 1908, p. 207. 
Pseudopallene circularis STEPHENSEN, 1933, pp. 20-21.—Nerxp.ter, 1943, p. 12, 
fig. 15, a-d. 
RECORD OF COLLECTIONS 
Grampus station 10037, lat. 44°17’ N., long. 68°05’ W., off Frenchmans Bay; 
July 21, 1912, 22 fathoms, 2 specimens. 
The number and position of the spines on the dorsum of the trunk 
and the shape of the chelae are variable in this species. Specimens 
from Grand Manan and Eastport are about half the size of those from 
northwest Greenland. It is not common in the New England region 
and is unknown south of Cape Cod. 
Ficure 19.—Pseudopallene circularis (Goodsir). 
Disiribution—A Boreal-Arctic species, from Okhotsk Sea to North- 
eastern America, perhaps circumpolar. 
Genus CORDYLOCHELE Sars, 1888 
Chelifore 2-jointed, chelae heavy, almost globular. Trunk com- 
pletely segmented, elongate, lateral processes well segmented. Ovigers 
10-jointed. Without auxiliary claws. 
Three, possibly five, species are included in this genus. Cordy- 
lochele malleolata, longicollis, and brevicollis are the species from the 
North Atlantic. C. malleolata and brevicollis are very similar, but in 
brevicollis the body is thicker and more compact, and the chelae are 
not quite so massive as in malicolaia. C. brevicollis is an Arctic species 
and is not represented in the collections from American waters. 
Hilton (1942c, pp. 39-40) has published preliminary diagnoses for 
