COROPHIUM CRASSICOKNE. 499 



AMPHIPODA. COROPHlIDEb. 



DOMICOLJ. 



COROPHIUM CRASSICORNE. 



Specific character. Inferior antennae having the penultimate joint of the 

 peduncle armed with two teeth. 

 Length Jg iuch. 



Corophium, crassicorne. Bruzelius, Skand. Amph. Gram. p. 15, pi. i. 



fig. 2. Spence Bate, Cat. Amph. Crust. Brit. 

 Mus. p. 228, pi. xlvii. fig. 6. 



The head is short, having a small rostrum. The eyes 

 are situated upon an advanced lobe between the superior 

 and inferior pairs of antennae. The superior antennas 

 reach to the extremity of the penultimate joint of the 

 peduncle of the inferior, which are about two-thirds of 

 the length of the animal, very robust, and armed at 

 the inferior distal extremity of the penultimate joint 

 with two anteriorly-directed teeth, the outer one being 

 the larger of the two. In other respects this species 

 bears a near resemblance to C. Bonellii. 



We have only seen two specimens of this species, one 

 dredged by Mr. Jeffreys off the Shetlands, and one re- 

 cently obtained by the Rev. A. M. Norman in Outer 

 Skerries Harbour, in from two to five fathoms of water, 

 which we regard as identical with that of Bruze- 



k k 2 



