THE CRUSTACEA OF NEW JERSEY. 355 



in large examples. External orbital angle not distinct, rounded. 

 Branchiostegal spine sharp, distinct. Abdomen longer than 

 carapace, slightly narrower in male and slightly broader in 

 female. Front section of telson on outer hind quarters with 

 two spines, or one to three, also variable on the two sides. Hind 

 telson section semicircular, slightly broader than long, also a 

 little shorter than front section. 



Epistome with hind part short, broad, almost thrice wide as 

 long, not plane, transverse groove behind middle and a front 

 median depression. Front section of epistome constricted basally, 

 front edge almost semicircular, with small median point slightly 

 variable in shape, and transverse diameter always slightly greater 

 than longitudinal. Antennal peduncle with sharp spine on outer 

 side of each of two basal joints. Antennal scale long as rostrum 

 or more, reaches middle or end of last joint in antennal peduncle, 

 outer edge with strong spine, laminar part rather broad with 

 edge more or less regularly curved, greatest width medianly or 

 slightly anterior. Flagellum reaches fourth or middle of fifth 

 abdominal segment in male, and in female not reaching beyond 

 hind edge of third segment. 



First peraeopods rather short, not stout. Hand short, not 

 ver}^ wide, depressed, long, ovate, stronger and longer in 

 male. Surface of hand punctate, inner edge nearly straight 

 with double row of tubercles more or less spiniform, and outer 

 edge smooth, bluntly angular, more distinctly so distally. 

 Fingers distinctly longer than palm, straight, cutting-edges 

 straight, in contact their whole length, with few very small 

 tubercles in proximal part, for rest without teeth or tubercles, 

 but with short dense pubescence becoming slightly barbate prox- 

 imally on lower side. Upper surface of each finger with length- 

 wise rib, most distinct distally, and lower surface of hand almost 

 smooth, sparsely punctate. Carpus slightly longer than wide, 

 shorter than palm, punctate, upper surface with distinct length- 

 wise groove, inner edge with strong, procurved spine in middle 

 and small spine anterior. Lower surface of carpus with two 

 strong spines, one in middle of anterior edge and other at articu- 

 lation with hand, sometimes other small spines proximal or above 



