498 
COROPHIIDJE. 
have the inner margin of the first joint of the peduncle 
smooth, armed near the base with three strong stiff 
spines; the second joint is narrower than the first, and 
about half as long ; the third joint is very small ; the 
flagellum is nearly as long as the peduncle. The inferior 
antennae are scarcely longer than the superior, being 
about half the length of the animal ; the second joint of 
the peduncle * is internally produced to a point, which 
is crowmed with a short straight spine; the third joint 
is similarly produced internally, and crowned with three 
stiff spines ; the fourth reaches to the extremity of the 
peduncle of the superior, it is as broad as the second, 
and anteriorly produced upon the inner side to a blunt 
point, the inner margin of the joint is furnished with 
stiff spines, those nearest the base are inserted at right 
angles, but gradually they diverge until the anterior 
ones are directed nearly straight forwards ; the flagellum 
is uniarticulate, and tipped with several small spines. 
In other respects this animal bears a near resemblance 
to C. longicorne . This species seems so nearly to cor- 
respond with the character given by Milne Edwards 
of C. Bonellii , of unknown habitat, that we adopt that 
name for it, the term spinicorne having been previously 
appropriated by Mr. Stimpson for a Californian species. 
It has been sent to us from Yarmouth, where it was 
taken by Mr. Jeffreys ; and from Cumbrae, where it was 
found by Mr. Robertson. The Rev. A. M. Norman 
has also taken it in from two to five fathoms of water 
in Outer Skerries Harbour, Shetland. It has also been 
taken at Plymouth. 
* The peduncle of the infeiior antennae in the A mphipods consists con- 
stantly of five joints, the first two are commonly closely united and fre- 
quently fused together ; they are nevertheless to be regarded and counted as 
two distinct joints. 
