266 REPORT OF NEW JERSEY STATE MUSEUM. 



of inverted V. First thoracic segment nearly twice length of 

 any following. Lateral portions of all segments bent downward, 

 forming an angle with dorsal part of segment. Epimera not 

 distinct from segments, indicated by depression on either side 

 of segment little distance within place where lateral part of seg- 

 ment bends downward. Posterior end of lateral edge or outer 

 post-lateral angle slightly produced. Abdomen formed of two 

 segTnents, first with two suture lines either side indicating partly 

 coalesced segments, and its hind edges with five low tubercles, 

 two either side of median one, also each with groove in center 

 from which extends long movable spine-like bristle. Tenninal 

 segment with convex anterior half furnished with one large 

 median tubercle with groove in center from which extends 

 bunch of hairs. Either side of this median tubercle row of two 

 large tubercles in longitudinal series, and lower one in each series 

 in transverse line with median tubercle. Below this transverse 

 row of three tubercles and almost hidden by them three small 

 tubercles in transverse row and much closer together than those 

 directly above them. Posterior half of terminal segment deeply 

 excavate, posterior lateral angles very acute. Within this ex- 

 cavation four acute teeth, two either side of center. Post-lateral 

 angles with small rudimentary tooth on inner side near end. 

 Fixed movable branch of uropoda extends only half length of 

 terminal segment. Outer movable branch long and narrow, 

 curved inward, so that in folding its end meets that of opposite 

 side in median line of body. Outer branch on outer edge with 

 various bunches of hairs. Legs all ambulatory. Each thoracic 

 segment with seven bunches of hairs, forming into seven longi- 

 tudinal series on thorax. Color red or pink in life. Length 

 7.5 mm. 



Remarks. — Originally found at Great Egg Harbor in this 

 State, and though not yet known to the northward occurs south 

 to Florida, Yucatan, Bermuda, the Bahamas and Porto Rico. 

 It ranges from the surface to a depth of twelve feet, and has been 

 recorded from twenty-five fathoms. It lives among coral reefs, 

 and among grass and algae below low tide. It does not appear 

 to have been taken in New Jersey since Say's time. 



