i88 REPORT OF NEW JERSEY STATE MUSEUM. 



it, with which it forms ahnost continuous curve. Finger tip 

 closing against inner side of hand. Hand of second gnathopods 

 of female much like that of male, smaller in size. Basal joints 

 of last three perseopods large, oblong, armed with short spines 

 in front and serrated behind. Posterior edges of abdominal 

 segments not dentate nor produced. Fifth segment with several 

 spines at hind edge on either side of mid-dorsal line. Last 

 uropods long, inner ramus minute, situated in sinus of 

 peduncle, and outer ramus of mostly uniform width, armed 

 either side with several fascicles of strong spines of moderate 

 length. Median spine of terminal cluster not unusually large. 

 Telson with tip of lobes triangular, acute. Few spines around 

 tip and on distal part of inner edge. Color of body and append- 

 ages generally grayish, color not confined to pigment cells, but 

 scattered in form of minute pigment granules in cells below 

 integument. Body and legs crossed by bands of somewhat 

 darker color. Red spot above on anterior portion of head. Eyes 

 black, with slight tinge of red. Length lo mm. 



(Holmes.) 

 Remarks. — This amphipod was described as ranging from 

 New Jersey to Cape Cod. Its habits are said to be similar to 

 those of other Gammari. 



Genus CARINOGAMMARUS Holmes. 



Cariiiogajiiiiianis Holmes, Amer. Nat., XXXVII. 1903. p. 280. Type Gam- 

 mariis mucronatus Say, first species. 



Abdomen dorsally carinated. Posterior edge of first three 

 abdominal segments produced backward in median dorsal line 

 into a prominent acute tooth. Last three segments of abdomen 

 with fascicles of spines. Terminal uropods flattened, projecting 

 beyond others. Liner ramus of terminal uropod not rudimen- 

 tary, though often smaller than outer. Telson deeply cleft, 

 small and flattened. Mouth parts normal. First antennze with 

 accessory flagellum. Gnathopods subchelate, larger in male 

 than in female, and second pair usually larger than first. Carpus 

 of gnathopods joined as usual, not in front of proximal end 

 of propodus. Perseopods with dactyls. 



Species few. 



