268 Transactions. 



Port Jackson and other localities on the east coast of Australia ; 

 while the " Challenger " specimen was obtained off Cape Virgins, 

 Patagonia, at a depth of 55 fathoms. Glycerina affinis, Chilton, 

 which was described under a misapprehension as to its generic 

 position, is a synonym of this species. 



Mr. G. M. Thomson has recorded this species from Moko- 

 hinau and from Lyttelton. 



Ampelisca chiltoni, Stebbing. Index Faunae N.Z., p. 260, and 

 Keport " Challenger," Amphipoda, p. 1042. 



One imperfect specimen dredged off Great Barrier Island, 

 at a depth of 120 fathoms, appears to belong to this species. I 

 have also two specimens dredged off the Poor Knights Islands, 

 in 60 fathoms, and two others collected in Kaipara Harbour by 

 Dr. Cockayne, that certainly belong to it. 



The " Challenger " specimens were collected at station 167, 

 to the west of New Plymouth, in 150 fathoms. 



Ampelisca acinaces, Stebbing. Index Fauna? N.Z., p. 260 : 

 Thomson, Annals and Mag. Nat. Hist., 7, x, p. 464. 



Some specimens from Bay of Islands, 4 fathoms, given me 

 by Dr. Cockayne, belong, I think, to this species. They can 

 be distinguished from A. chiltoni most readily by the dorsal 

 compression, which is continued along the whole length of the 

 body, whereas in A. chiltoni it is not at all well marked, and is 

 limited to the head. Many minute points of difference are given 

 by Mr. Stebbing, but if my identifications are correct some of 

 these will not hold: e.g., the inferior posterior angles of the 

 3rd segment of the pleon are produced into an acute slightly 

 upturned point, just as in A. chiltoni, while Mr. Stebbing de- 

 scribes and figures the lower margin as nearly straight, and mak- 

 ing a right angle with the hind margin ; and again, in my speci- 

 mens the lower antennae are considerably less than the length 

 of the body and shorter than in A. chiltoni, while Mr. Stebbing 

 gives them about equal to the length of the body in A. acinaces, 

 and his figure of A. chiltoni shows them considerably less than 

 that of the body, although in his description of the species he 

 savs, " antenna? nearly as in Ampelisca acinaces^ 



The " Challenger " specimens were taken off Port Jackson 

 in 35 fathoms. According to Mr. Thomson, this species is not 

 infrequently washed up on Ocean Beach, Dunedin, in consider- 

 able numbers. 



Leucothoe tridens, Stebbing. " Challenger " Reports, xxix, 



p. 777 ; Index Faunae N.Z., p. 258. 



Two imperfect specimens, Channel Islands. 25 fathoms, 

 appear to belong to this species. 



