9:2 AMPHirODA NORMALIA. 



penultimate having one ramus clean, the other armed with a single 

 row of short spines along the upper margin ; penultimate having 

 the rami shorter, and both armed at their margins with short 

 spines ; ultimate having both rami furnished near the extremity 

 with short hairs, and one aLso along the inferior margin with short 

 spines. Telson long, narrow, somewhat lanceolate, cleft up the 

 median line. 

 Length ^ths of an inch. 



This species was first taken by Krciyer, on the Scandinavian shores. 

 The British specimens have been taken by the Rev. G. Gordon in 

 the Moray Frith ; off the island of Skye by Mr. G, Barlee ; KLsh- 

 bank, Dublin Bay, by Prof. Kinahan ; off Fowey by Mr. Wells, of 

 the Admiralty Survey ; and in Plymouth Sound it has been dredged 

 by Mr. T. P. Smyth and myself. Costa procured the specimen which 

 I believe to be this species upon the coast of Naples. 



2. Ampelisca ingens. (Plate XV. fig. 2.) B.M. 



Pseudophthalmus ingens, Stwipson, 3IS. 



Anterior portion of the pereion laterally compressed and dorsally 

 cuneated. Posterior margin of the third segment of the pleon 

 slightly waved. Superior antennae half as long as the inferior ; 

 peduncle nearly as long as the flagellum. Inferior antennae half 

 as long as the animal, having the ultimate joint of the peduncle half 

 the length of the penultimate ; the peduncle nearly as long as the 

 flagellum. Fii-st pair of gnathopoda rather short, having the inferior 

 angle of the propodos produced and rounded ; palm short, straight, 

 and ciliated, as also along the inferior margin of the propodos, car- 

 pus, meros, and ischium. Second pair of gnathopoda longer than the 

 first, ha\dng the carpus cylindiical, as long again as the propo- 

 dos ; propodos having the inferior margin nearly parallel with the 

 superior, slightly approaching at the distal extremity, ha\'ing the 

 palm not defined ; dactylos impinging against the inferior margin. 

 AH the joints fringed along their inferior margins with fasciculi 

 of hairs. The pereiopoda bear a close resemblance to those of 

 A. Oaimardii ; posterior pair having the rami equal, lanceolate, 

 and naked. 



Length 1| inch. 



Hah. Grand Manan (Stimpson) ; Greenland, 40 fathoms (Holboll). 



I am indebted for this species, among many others, to Mr, Stimp- 

 son ; it was sent with a collection of specimens from Grand Manan, 

 and labelled by the author, but it is not noticed in his Synopsis of 

 the Marine Invertebrata of that island. I have therefore the au- 

 thority of the author's MS. name only. 



