occurring on the Norwegian Coasts. 407 



tiania. The eyes are nearly round; the superior antcnnai are 

 l(ni!:;er tlian the iuferior ; tlie peduncle short, with its first joint 

 the lon^-est ; the tiag-elluni consists of" twenty-three joints ; the 

 first joint of" the inferior antenna? is extremely large, standing 

 out nearly in a spherical form ; the second joint is very short 

 and united with the preceding one ; the fouilli and fifth are of 

 nearly equal length; the flagellum consists of t\velve joints; 

 the fifth joint or hand of the first pair of legs is oval, that of 

 the second pair much elongated and narrower ; the last three 

 segments of the abdomen are furnished with small sjnnes. 

 The first segment has two small spines upon each side of the 

 median line ; the next has a strong spine in the median line, 

 and a longer and thinner one on each side ; the last segment 

 has a small spine on each side. The branches of the telson 

 are furnislied with three spines at the apex. 



Ainphithopsis^ mihi. — Milne-Edwards placed in the genus 

 Amjihlthoe those species which had the appearance of" the 

 genus GammaruSj but wanted the secondary flagellum on the 

 superior antennas. Dana correctly separated the true species 

 oi Amphithoe from the rest, which he placed under the name 

 of Iphiniedia, H. R. ; but this selection of a name w^as less 

 fortunate, as /. ohesa is a form differing from them. Spence 

 Bate refeiTcd the genus Amjyhithoe to its right place in the 

 family Corophiidaj, which opinion has also been adopted by 

 Bruzelius. To the Scandinavian species which ought to come 

 under Dana's genus Iijhimedia Bruzelius has given the generic 

 name of ParampkitJioe ; and in this genus he places all the 

 species which have the body more or less compressed and 

 furnished with large or middle-sized ejtimera — in which the 

 superior antennai are small, destitute of secondary Hagcllum, 

 and have tlie third joint of the peduncle smaller than the fla- 

 gellum — in Avliich the eyes are compound, the mandiljular 

 palpi three-jointed, and those of the maxillipedes .four-jointed — 

 in Avhich the fifth joint of the first two pairs of legs is converted 

 into a })reheusile hand — in which the seventh pair of feet are 

 not twice as long as the preceding — and in which the last pah" 

 of abdominal legs are two-branched, — that is to say, all the 

 species of the family Gannnarida' which do not belong to the 

 genera Amjyelisca, Leucot/toe, Drxamine, Acanthonotus^ (EcJi- 

 cerusy &c. It consequently includes a very large number of 

 species. But if these be more closely examined, we shall easily 

 find that they differ very much among themselves in form, 

 and consequently cannot belong to tlie same genus. Some of 

 them are stout, keeled, angled, and have the body often armed 

 with spines and fnniislie(l witli a large pointed rostrum. The 

 inner himella? of the maxillipedes are small, and their palpi 



