THE CRUSTACEA OE NEW JERSEY. i8i 



First and second abdominal segments with sides formed below 

 into an acute tooth posteriorly. Angle of third segment postero- 

 laterally produced as well upturned large hook. Uropods short. 

 Short spine or denticle exserted backward from hind end of 

 peduncle of first pair below rami, and strong spine on inner 

 posterior angle. Rami of first pair of uropoda about two-thirds 

 peduncle in length. Second pair of uropoda with strong spine at 

 inner hind angle of peduncle, but without terminal spine below 

 rami. Terminal uropoda small, short ramus not half length of 

 peduncle. Inner hind angle of peduncle produced lobe extending 

 behind till ecjual with tip of ramus, producing a biramous ap- 

 pearance. Telson rounded posteriorly, of rather large size. In 

 life color usually bright red, generally mottled with white, some- 

 times latter predominating. Bases of antennae said to be red 

 with orange, and flagella with double row of red spots, one pair 

 to a segment. Length 15 mm. 



Remarks. — Originally this species was discovered at Great 

 Egg Harbor Bay. It has since been recorded from Beach 

 Haven, and was also obtained some years ago at Point Pleasant 

 by Mr. Witmer Stone. Northward it extends to Labrador. 



It ranges from low tide water to over five hundred fathoms in 

 depth. Holmes gives its life colors as follows : Body mottled 

 with bright crimson. Head with broad median crimson band, 

 bifurcated in front. First thoracic segment more colored than 

 others. Row of small crimson spots on either side of mid- 

 dorsal line. Bases of both pairs of antennas crowned with 

 orange. Flagella with double rows of crimson spots, pair to 

 each segment. Large hand with crimson blotches. 



Verrill says it is very common on shelly and rocky bottoms, 

 and although it habitually lives in tubes it does not always con- 

 struct its own tube, but is ready and willing to take possession 

 of any empty worm-tube into which it can get, and having 

 once taken possession it seems to be perfectly at home, for it 

 remains near the end of the tube protruding its stout claw-like 

 antennse, and looking out for its prey, in the most independent 

 manner. It will also frequently leave its tube and swim actively 

 about for a time, and then return to its former tube, or hunt 



