1901.] NATURAL SCIENCES OF PHILADELPHIA. 155 



Station 39. Granville Bay, 30-40 fathoms (1). 



Station 40. Granville Bay, 20-30 fathoms (3). 



Station 43. Barden Bay, 20-25 fathoms (1). 



Station 49. Olriks Bay, 15-20 fathoms (7). 



The genus JEginella is the same as jEgina. 9 JEgina echinata 

 Boeck seems to be different from this species. 



Distribution. — Grand Manan, Polar islands of North America, 

 Grinnell Land, North, West and East Greenland, Iceland, Jan 

 Mayen, Spitzbergen, Kara Sea, Siberian Polar Sea (West and East 

 Taimyr peninsula) ; 3-300 fathoms. 



Ginnell Land: Cape Napoleon, Dobbin Bay (Miers) ; North 

 Greenland: Northumberland Island, Cape Dudley Digges (Ohlin), 

 McCormick Bay (Ives), Cape York (Hansen). 



33. Caprella linearis (Linné). 



Mayer, Flor. and Faun. Golf von Neapol., 6 Monogr., 1882, p. 60, figs. 

 17-19 ; Sars, I. c, 1895, p. 657, PL 236. 



Station 60. Battle Harbor, Labrador, 12-14 fathoms (18). 



Among our material are four ovigerous females, in which the 5-7 

 segments have dorsally only slight indications of tubercles; some 

 of the other individuals are quite smooth. No adult males are 

 present. 



This species 'differs from C. septentrionalis, (1) in the lack of 

 tubercles on the anterior part of the body; (2) in the arm of the 

 second pair of legs, which is longer; (3) in the reddish color 

 (they were found in red algse). 



Although there are no males, I believe, we have to deal here 

 with G. linearis. G. septentrionalis grows much larger, and my 

 females with eggs are small, much smaller than ovigerous females 

 of G. septentrionalis. Among the young G. septentrionalis from 

 Godhavn (about as large as my individuals of G. linearis) are na 

 adult females, and thej have all a brownish color (found among 

 brown alg^e). 



Distribution. — Scandinavia, England, France, Iceland, Green- 

 land, Grand Manan (Stimpson's C. lobata), St. Johns, New- 

 foundland (Ohlin). 



34. Caprella septentrionalis Kroeyer. 



Sars, I. c, 1895, p. 659, PI. 237, fig. 1. 

 Station 3. Godhavn, Disco Island, 0-1 fathom (63 jun. ). 

 Station 4. Upernavik, 8-10 fathoms (6). 



9 Stebbing, Challenger Amphip., 1888, p. 1,248. 



