130 BULLETIN 201, UNITED' STATES NATIONAL MUSEUM 



differences constitute characters of specific significance and record the 

 specimens as A. abbreviata. 



AMBLYOPS sp. 7 



Occurrence. — East coast of United States : Albatross station 2215, 

 3 mutilated specimens. 



Remarks. — Identification is impossible because of the damaged con- 

 dition of the specimens. 



AMBLYOPS sp. ? 



Occurrence. — California: Albatross station 4537, 1 adult female, 

 20 mm. 



Remarks. — The specimen is badly damaged, both antennal scales 

 and telson being broken. Identification is therefore impossible. 



AMBLYOPS OHLINII, new species 



Figure 45 



Amblyops crozetii Ohlin, 1901a, p. 371 ; 1901b, p. 9. — Zimmer, 1904, p. 451, figs. 



114-116.— Stephensen, 1913, p. 73. 

 Amblyops crozeti Zimmer, 1909, p. 114, figs. 229-231. 

 Amblyops new species Hansen, 1908a, p. 108. 



Description. — This species is very closely allied to A. crozetii (Wil- 

 lemoes-Suhm) G. O. Sars, but as far as can be seen from the rather 

 defective material in this collection it may be distinguished by the 

 following characters: 



(1) The telson (fig. 45, c) , while of the same shape and proportions 

 as in A. crozetii, has only 6 spines arming the broad truncate or slightly 

 emarginate apex of the telson. In A. crozetii there are 14 spines on 

 the apex, and to judge from Sars' figures these spines are more slender 

 than those in the present species. Unfortunately, the material is 

 very defective, and I have shown only those spines that are actually 

 still present on the specimens. There appear to be 18 to 20 spines on 

 each lateral margin. 



(2) The anterolateral angle of the ocular plate (fig. 45, a) is micro- 

 scopically spinulose or denticulate. In A. crozetii the eye is described 

 as smooth. 



Type lot.— Two adult females, U.S.N.M. No. 81262, Albatross sta- 

 tion 2550, east coast of the United States. 



Occurrence. — East coast of United States: Albatross stations 

 2192, 1 immature female, 11 mm. ; 2550, 2 adult females, 25 mm. (type 

 lot). 



Distribution. — New to the American fauna. Known previously 

 only from the specimens recorded from east Greenland by Ohlin at 



