I0 Addis on E. Verrill, 



The antennal flagellum is considerably longer than the entire 

 body. It is covered by whorls of sharp, conical, red or brown 

 spines, with the tips strongly inclined distally. There are usually 

 seven spines in each whorl. The flagella of the antennules are 

 long and slender ; the outer one is shorter and has a tuft of hairs 

 near the tip. The legs are long and rather slender. Those of the 

 second pair are much longer than the others ; those of the third 

 pair are longer than those of the first; the fifth pair are consider- 

 ably shorter than the fourth. 



All the legs have the dactyli covered, except on the outer edge, 

 with a dense brush of gold-colored hairs; on the first pair the 

 hairs cover also the inner surface of the propodus. The inner 

 surface of all the segments of the outer maxillipeds are densely 

 clothed with similar hairs. 



The abdominal segments are crossed by a deep groove ; the part 

 back of the groove has an uneven surface, covered with small, 

 conical, hair-bearing spinules, sunk in small, circular pits ; the 

 smoother portion has fewer and smaller circumvallate spinules, and 

 many still smaller punctiform pits, easily visible with a lens. The 

 lateral lobes are triangular, acute, and have a single, large, basal 

 tooth on the posterior edge. 



The telson and uropods are large and thin, banded with bright 

 colors and covered distally with finely branching riblets and fine 

 striae, each of the riblets bearing a row of minute, sharp spinules, 

 pointing backward, and terminating in fine marginal spinules. 

 The telson is longer than broad, a little convex on the outer margin, 

 slightly tapered distally with the curves broadly rounded ; posterior 

 margin subtruncate and fringed with hairs. The thickened por- 

 tion is divided by a groove, edged by small spinules, into a basal, 

 four-lobed part, and a wider middle portion. The latter has a 

 broadly triangular middle area, which is covered with longitudinal 

 rows of small, sharp, conical spines ; the outer lateral angles 

 terminate, on each side, in a sharp spine. 



The male organs are large, broadly reniform or auriculate, with 

 thick, swollen borders, situated on stout projections from the basal 

 segment of the last pair of legs. Larger individuals often have 

 the dorsal spines fewer and many of them may be reduced to low, 

 rounded or blunt tubercles. Smaller and younger specimens are 

 usually more spinose and the spines are sharper. 



