38 A. 0. WALKER. 



FAM. ISCHYROCERID.E, STUBBING. 

 HEMIJASSA. 



Since the publication of Jassa goniamera, A. 0. W., Canon A. M. Norman has 

 pointed* out that the genus Jaxsa, Leach, was restricted by Bruzeliusf to species with 

 the upper antennae "flagello appendiculari destitutse" or, as is the case with his type 

 species 7. capillata (Rathke), having only a rudimentary appendage. As /. goniamera 

 has a well-developed appendage, but differs from Ischyrocerus, Lillj. and Bruzeliella, 

 Norman, in having no secondary teeth on the outer ram us of the third uropods, it 

 becomes necessary to establish a new genus. 



HEMIJASSA GONIAMERA. 

 Jassa goniamera, A. 0. Walker. 



Coulman Island, 100 fin., 13 Jan., 1902, two specimens; W.Q., Flagon Point, 

 10-20 fm., 17 Jan., 1903, three ; and 23 Jan., 1903, two. 



FAM. COLOMASTIGID^, STEBBING. 



COLOMASTIX PUSILLA. 

 Colomastix pusilla, Grube, Ausflug n. Triest, p. 137 (1861). 



Oct. 1902, Hut Point, D net; sponges. Two males, one young, length 4*5 mm. 

 Differs from C. brazieri, Haswell, in having the first two pairs of perseopods 

 subequal and similar to the remainder ; also in the shape of the telson. 



* Ann. and Mag. Nat. Hist. XVI. (1905), p. 83, note, 

 t Bidrag till Kann. Skand. Amphipodens Fauna, 1858. 



