THE CRUSTACEA OF NEW JERSEY. 217 



seven segments, more robust than metasome. Latter consists 

 of three large segments, becoming more constricted posteriorly. 

 Urosome smallest of body segments. First iiropods reach 

 slightly beyond second, subequal rami about equal to peduncle. 

 Second uropods with rami longer than peduncle, and inner con- 

 siderably longer than outer. Third uropods with rami about 

 long as peduncle, much narrower. Telson triangular, fleshy, with 

 median dorsal groove, and tip triangular. Color whitish, and 

 sometimes a median series of brown spots dorsally. Antennae 

 reddish or pink basally, flagella blue. Propodi of posterior perse- 

 pods blue. Length 20 mm. 



Remarks. — Distributed from Cape Cod to New Jersey, where 

 it is abundant on sandy beaches along the seashore. They lie 

 quiet in burrows, indicated by small holes in the sand, all of 

 Avhich are usually found well above the high tide mark. A large 

 examiple before me is from Spray Beach in Ocean county, and I 

 have also seen others at Cape May and Point Pleasant. They are 

 capable of swimming actively when so forced by high tides. 

 Many undoubtedly fall a prey to the shore birds, fishes and ghost 

 crabs. Mr. W. T. Davis found it on Staten Island, and at 

 Amagansett, Rockaway Beach and at Fire Island on Long Island, 

 New York. 



Holmes says the burrows they make in the sand are only a few 

 inches deep, and the depth depends on how far the animal has to 

 dig in order to reach moist sand. When dug out in the daylight 

 they are rather sluggish, and apparently dazed. It often curls up 

 and lies quiet as if feigning death, and may even be picked up and 

 handled in some cases without betraying signs of animation. 

 When aroused it cunningly makes a few leaps, when, especially 

 if it alights upon loose sand, it lies quiet for a short time and then 

 b)egins to burrow. At night it comes out of its burrows and may 

 be seen in large numbers running over the seaweed recently 

 wasKed ashore, which affords its principal food. Then it is very 

 alert and is able to detect one's approach at a distance of several 

 yards. It is strongly attracted to light and gathers around a 

 lantern in swarms. In fact the easiest way to procure a large 

 number of this species is to take a lantern into their midst at 



