498 COROPHIIDJ£. 



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 crowned with a short straight spine ; the third joint 

 is similarly produced internally, and crowned with three 

 stiflT 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 inferior antennae in the A miihipods conhisis 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. 



