244 



DISCOVERY REPORTS 



differences are very striking when the two forms are placed side by side, and for the 

 present they should be kept separate in the same way as should Jassa folcato and ingens. 



Fig. 152. Parajassa georgiana, Schell. a. Gnathopod 1. b. Gnathopod z£. c, d. Frontal and profile views 

 of epistome and upper lip. e,f, g. Peraeopods 2, 3, 5 respectively. /;. Telson and uropod 3. 



The coloration, as preserved, is the same as in the above specimens of tristanensis, viz. 

 dark greyish bands on the head and anterior peraeon segments, with a darker, almost 

 black spot on each of side-plates 1-5. 



Family COROPHIIDAE 

 Stebbing, 1906, pp. 662, 739. 



Genus Corophium, Latr. 

 Stebbing, 1906, pp. 685, 740. 

 Stephensen, 1915, p. 52. 

 Chevreux and Fage, 1925, p. 363. 



Corophium bonellii (M. Edw.). 



Chevreux and Fage, 1925, p. 369, fig. 377. 

 Barnard, 1930, p. 393. 



Occurrence: 34 23' N, 14 32' W. 14. x. 25. o m. (9 a.m.). 5 $£ 3-4 mm., 2 $$ 3-5 mm. 

 Distribution. North Atlantic; Alaska. 



Corophium cylindricum (Say). 

 Stebbing, 1914, p. 372. 

 Occurrence: St. 54. Falklands. 6 $? (1 ovig.) 3-5—4-5 mm. 



Remarks. I have seen neither Holmes' nor Paulmier's papers, quoted by Stebbing, 

 and therefore accept Stebbing's identification, though I cannot find any points of 

 difference which would separate the present specimens from bonellii. 



