229 



one, while one observes on the left side midway between these two still a third microscopical 

 granule, that, however, does not exist on the right side of the carapace. In the ova-bearing 

 female the crest is almost confined to the anterior subacute tooth, while on the right side one 

 small granule occurs immediately behind the tooth, on the left side two and near the cervical 

 groove a third; in the second female, which is about 60 mm. long, the crest is as long as in 

 the younger male and followed on the right side by 3 or 4, on the left by 2 or 3 granules; 

 in the youngest female, finally, the crest reaches on the left side almost to midway between 

 the anterior tooth and the cervical groove, followed close to the latter by a granule, but on 

 the right side it is confined to the rather obtuse anterior tooth, behind which are one or two 

 granules. We conclude from the preceding observations that the development of the 

 anterior portion of the dorso-lateral crest varies rather much individually. 

 Both the anterior and the posterior portion of the 4'^ or lateral crest are smooth and entire, 

 the former ends in a small sharp tooth, while the anterior extremity of the posterior portion is 

 subacute. All the tubercles and crests of the carapace are coarsely and irregularly punctate, 

 presenting therefore a "worm-eaten" edge. 



The abdomen differs at first sight from that of Glyph. Gilesii by the median carina 

 of the terga being rather prominent and by the somites being all covered 

 with numerous granules. The median subacute tooth on the i^' tergum extends almost 

 to the posterior margin and its curved upper margin is slightly notched posteriorly ; the lateral 

 teeth are as usual a little smaller. The granules are arranged on the terga and pleura nearly 

 like in Glyph, rcgalis, they are mostly circular in outline, of unequal size, and gradually become 

 smaller and less in number towards the lower margin of the pleura, while they appear irregularly 

 punctate and corrugate when examined under a lens. The antero-inferior angle of the pleura 

 of the 2°d somite is rectangular, obtuse, the postero-inferior angle sharp, while the acute middle 

 tooth is larger than the posterior. The 3''<^ and 4''^ terminate each in two sharp teeth, of which 

 the anterior is the larger, while of the two teeth at the free end of the 5'*^ pleura the posterior 

 is much larger than the other-, the single spine of the 6'*' pleuron is well-developed. While the 

 granules with which the abdomen is covered, are rather rounded and obtuse on the i^' to 3'^'' 

 somite, they are acute on the 5"^ and 6'*^, with the sharp tip directed backward, and on the 4'*^ 

 somite one observes a tendency to change their form. Telson little longer than the uropods, the 

 extreme tip slightly upturned; all the edges are salient, sharp and slightly serrulate proximally. 



Eyes dark-purple (in spirit); the carapace of the ova-bearing female, rostrum included, 

 is 7-times, that of the larger male jYj-times as long as the greater diameter of the eyes. 



The antennular peduncle extends in the ova-bearing female by two-thirds, in the larger 

 male by the whole terminal joint beyond the antennal scale; the peduncle has a more slender 

 form in the female than in the male, the 2°-' and 3'^'^ joint taken together are a little short(;r than 

 the basal joint, the 2^'^ in the male once and a half, in the female twice as long as the 3^'' joint; 

 as usual in this genus, the outer llagellum is much broader in the male than in the female. 



The antennal scale (Fig. 57^) measures in the ova-bearing female about one-fourth (.'g) 

 the length of the carapace, rostrum included; the scale, that has an elliptical form, is two and 

 one-third times as long as broad, and the outer margin bears a small spinule just behind the 



