272 REPORT OF NEW JERSEY STATE MUSEUM. 



Remarks. — This species, until quite recently, was known only 

 from the type described above. The type is a dry specimen, for- 

 merly mounted on a pin and afterwards taken off and ^lued to 

 a piece of paper. 



Say's account is as follows : Body broad, depressed, linear, 

 punctured, sides parallel. Segments subequal, anterior ones 

 rather shorter. First segment of tail not visible, second equal, 

 as long as three preceding visible ones and attenuated to an 

 obtuse point, which carinated above and reached by lateral acute 

 spiniform processes. Body below concave, effuse at tip. Eyes 

 apparently lunated, really rounded, with distant granules, and 

 reaching front segment of body. Hands of anterior feet dilated, 

 ovate, thumb long as palm, nearly reaches carpus, and tip closes 

 within prominent spinose tooth on base of palm. Anterior feet 

 monodactyle. Hands of second pair of feet cylindric, incurved, 

 with dentate process at tip place at inner base, armed with an 

 equal incurved thumb not closing on hand, obtuse, and furnished 

 with seta at tip. Remaining feet ciliated. Length half an inch, 

 and width slightly more than one fifth of an inch. Inhabits Egg 

 Harbor. Common. 



Family UMNORIID^. 



The Gribbles. 



Body oblong, sul>depressed, contractile into a ball. Segments 

 of thorax distinct, first longer than second. Metasome of six 

 distinct segments, last very large, broad and flattened above. 

 Head short, blunt in front. Cephalon short, very convex. Coxal 

 plates behind first segment of mesosome well defined, laminar. 

 Eyes lateral. Both pairs of antennae small, subequal, flagella 

 short. Mouth-parts normal, adapted for biting. Mandibles with- 

 out molar expansion, with small three-jointed palp. Palp of 

 m'axillipeds formed of five articles. Epimera well defined on all 

 segments of thorax, except first. Legs uniform, all ambulatory. 

 Pleopods uniform in structure, both for swimming and respira- 

 tion, inner plate of second pair in male with stylet. Uropoda 



