2t> AMPHIPODA NORM ALIA. 



of the penultimate articulation of the pcdrmclo of the lower. 

 Lower antenna) more than oue-thii'd the length of the animal ; the 

 flagellnm as long as the peduncle. The first pair of gnathopoda 

 having the palm of the propodos hroad, with a notch near the base 

 of the dactjlos, which is shorter than the palm ; a large tubercle 

 is produced upon the eai-pus, and a small one upon the mcros. 

 Tlie second paii- of gnathopoda large, ovate ; palm convex, without 

 teeth, spinous, terminating in a slight notch, which receives the 

 apex of the smooth ciu-ved dactylos. 

 Length i-^ths of an inch. 



" In the female the fii-st pair of gnathopoda resemble those of the 

 male, except in being smaller, having less produced lobes, and a 

 comparatively longer dactylos ; those of the second paii" vdth a small 

 elongated j)ropodos, vdth a rounded extremity, and a rudimentary 

 dactylos applied at about the middle of the lower edge. In hoth, 

 the ibui-th and fifth pairs of pereiopoda are about equal in length. 

 Eyes rounded, black. Coloiu' light grey, sometimes greenish or 

 broA\Tiish, always very pale." {Stimpson, Joiirn. Bost. Soc. Nat. 

 Hist. vol. vi.) 



ffab. San Francisco (Stimpson). 



The figure and description of the male have been taken from a 

 specimen sent to me by the author. 



7. Orchestia NovaB-Zealandiae, n. s. (Plate III. fig. 5.) B.M. 



Female. — Upper antennae reaeliing beyond the extremity of the 

 penultimate joint of the lower. Lower antennae more than half 

 as long as the animal ; the flageUum longer than the peduncle, 

 and spinous; the penultimate is nearly as long as the ultimate 

 joint of the peduncle. The fii'st pair of gnathopoda having the 

 propodos well developed, and longer than the carpus ; dactylos 

 scarcely longer than the palm. The second pair of gnathopoda 

 having the propodos and cai-pus about equal in length ; the dactylos 

 falls considerably short of the extremity of the propodos. Third 

 pair of pereiopoda as long as the fourth and fifth ; bases long. 



Length ^ths of an inch. 



Hab. New Zealand. Presented by Captain Bolton. 



8. Orchestia Telluris, n. s. B.M. 



(Plate III. fig. 6, male. Plate IV. fig. 4, female.) 



Male. — Eyes round, large. Upper antennae reaching rather beyond 

 the extremity of the penultimate joint of the peduncle of the lower. 

 Lower antennae short, being scarcely one-fourth the length of the 

 animal ; the fiagellnm not quite so long as the pedimcle ; the 



