202 DISCOVERY REPORTS 



Occurrence: i. St. 56. Falklands. 1 ovig. $ 8 mm. 

 2. St. 58. Falklands. 2 S3 7'5 mm - 



Remarks. Integument minutely shagreened, with scattered pits. Antero-lateral 

 margin and post-antennal angle of head as in the following species dentata. 



Stephensen (1927, p. 325) queries Stebbing's Falkland Island record. In view of the 

 present records I think we may accept Stebbing's identification, even though he does 

 include Chevreux's magellanica (= edouardi), which has no epistomal process, in his 

 synonymy. 



The impression given by Stebbing's small figure that the post-antennal angle of the 

 head is acute, is here confirmed. I therefore exclude Schellenberg's 1926 record, which 

 represents a different species with rounded post-antennal angle, unless his description 

 refers only to the projecting antero-lateral margin. In any case the depth of the Gauss 

 capture, 385 m., seems a little anomalous for the present species. 



Distribution. Cape Virgins, 55 fathoms; Falkland Islands; ? South Georgia. 



Atyloella dentata, n.sp. (Figs. 118 e, 122). 



Occurrence: 1. St. 51. Falklands. 3 $$ 8-12 mm., the largest ovigerous. Types. 

 2. St. WS 79. Between Falklands and South America. 1 $ 9 mm. 



Description. Integument minutely shagreened, stronger than in magellanica, with 



scattered pits, some of which on the posterior segments are often replaced by elongate 



Fig. 122. Atyloella dentata, n.sp. a. Gnathopod 2?. b. Head. 

 c. Peraeon segment 7 and pleon segments 1-3. d. Telson. 



lines. Rostrum short. Antero-lateral margin of head produced in a narrowly rounded 

 lobe, post-antennal angle acutely produced. Eyes large rounded-oblong. Peraeon seg- 

 ment 7 and pleon segments 1-3 dorsally carinate, the carinae on peraeon segment 7 and 

 pleon segments 1 and 2 forming an acute tooth, that on segment 3 rounded. Side-plate 1 

 widening slightly below as in magellanica . Pleon segments 1 and 2 each with a small 

 denticle in middle of lateral margin; postero-inferior angle of segment 1 with a very 

 small point, of 2 and 3 acutely produced. Telson concave above, oblong, apically incised 



