252 Transactions. —Z oology. 
sete, ending posteriorly in a sharp point followed by a small concave 
indentation ; portion between the bases of the last pleopoda slightly convex. 
Last pleopoda with the peduncle short, broadest at distal end, inner ramus 
larger than the outer, both narrowing distally and supplied with tufts of 
long fine sete. Length of body about è inch. 
Hab. Lyttelton Harbour. 
I have only a single specimen, the body of which is unfortunately much 
crushed. I am therefore unable to describe the shape of the body, and I 
cannot determine whether the head is produced into a rostrum or not. 
Judging from the analogy of the Australian species described by Mr. 
Haswell, the specimen is probably a female. 
AMPHIPODA. 
Genus Cyamus, Lamarck. 
(Bate’s and Westwood’s “ British Sessile-eyed Crustacea,” vol. ii., p. 80.) 
The following is the generic character as given by Bate and West- 
wood :— 
“Head and first segment of the body fused into a pear-shaped mass. 
Eyes small and vertical. Segments of the pereion with the sides horizon- 
tally dilated ; the legs attached to the postero-lateral margins ; five pairs of 
strongly cheliform legs, wanting in the third and fourth segments, which 
are furnished with two pairs of branchial appendages, long and filiform. 
Pleon rudimental.” 
Cyamus ceti, Martens, l.c., p. 85. 
Specific description :— Body depressed, elliptical, segments gaping at 
the sides (male narrower ?). Third and fourth segments of the body with 
one long branchia on each side; armed at the base with two short append- 
ages; second pair of hands armed beneath with two obtuse teeth, between 
which is a lunate incision. Length nearly half an inch.” 
. I received tl peci is species from Professor Julius von Haast. 
In answer to my question as to the name of the whale on which they were 
found, he writes:— The parasitic Crustacea were found on Euphysetes 
potsii, which, as it appears now from careful examination of further speci- 
mens, is identical with Viagia breviceps of the northern hemisphere.” With 
regard to its occurrence in European seas, Bate and Westwood say,— We 
have no precise details of the locality and notice of capture of this species, 
beyond the general statement of its being found on the whale in British 
seas.” i 
Of the three specimens which Professor Haast kindly handed over 
to me, two appear to be males, one 4% inch in length of body, the 
other 16. 
