242 



Spines of the anterior-pair twice as large and more pointed than those of the posterior, distance 

 between those of the posterior pair 1,7-tim^s as large as the distance between the anterior 

 spines, distance between the two pairs, in the middle line, almost twice as long as that between 

 the spines of the anterior pair. 



Of the 4 subacute tubercles of the anterior moiety of the dorsal crests the 4"' or 

 posterior is the largest, the 2°'^ a little smaller, the i^' and the 3'^'^, that are equal, the smallest, 

 between the two crests are two clo.sely-parallel rows of much smaller granules, the granules of 

 one row alternating with those of its fellow. Cardiac area separated on each side by a narrow 

 groove from the branchial regions. The two tubercles of the posterior moiety of the dorsal crest 

 are obtuse and nearly as large as the posterior tubercle of the anterior moiety. Anterior moiety 

 of subdorsal crest broken up into three tubercles, of which the 3'^'^ or posterior is the largest 

 and subacute, the a""^ the smallest, the i^' or anterior is truncate and appears even slightly 

 concave on the tip ; this anterior tooth should, as in other species, be more rightly considered 

 as a third rostral tooth. The 3 tubercles of the posterior moiety of the subdorsal crest are 

 rather blunt and increase in size and length from the 1^' or anterior to the y^. Between the 

 posterior moieties of the dorsal and subdorsal crests an arched row of 4 small subacute granules 

 runs from the cervical groove backward ; the two anterior are larger than the posterior and the 

 row reaches to midway between that groove and the posterior border of the carapace. Posterior 

 moiety of 3'"'^ crest with tuberculiform, though blunt, anterior e.x^tremity and obsoletely notched 

 in the middle. 



The median carinae of the abdomen are described by Alcock in 1901 as "less sharply 

 cut, those of the 2°<^, 3"^'^ and anterior half of 4''' 'terga (being) obsolescent"; in the present 

 male they are well-developed and conspicuous, the carinae of the i*' to ~)^^ terga are divided 

 into two parts by a notch, while that of the 6'^ is obsoletely notched not far from the posterior 

 e.xtremity. Looked at from above the carinae of the i""' to 3"' terga appear rounded or obtuse, 

 like the anterior part of the 4"'; the posterior part of the 4'1' carina, twice as long as the 

 anterior, is longitudinally grooved and this is also the case with the anterior half of the lateral 

 parts of the trifurcate crest on the 5''' tergum ; the two parts of the median carina of this 

 tergum and the carina of the 6*'' are .subacute. As already observed, each tergum is divided 

 by a transverse groove in an anterior and a posterior part. In the figures i and i a of the 

 "Illustrations" no tubercles appear on the posterior part of the terga, excepting the 1^', in 

 the present male, however, one observes here on the 2"'' somite at either side of the median 

 crest two tubercles, of which the outer is a little larger than the inner, on the 3"' they are 

 rather indistinct, though the outer is recognizable by an impressed point, and on the 4"' tergum 

 one little prominent tubercle, marked with a transverse line, exists at either side of the median 

 crest. Telson little longer than the uropods, the edges salient and smooth, the median ridge 

 extending along the anterior fourth. 



Eyes pale straw-coloured, their major diameter (2,25 mm.) contained 4,4-times in the 

 length of the free portion of the rostrum ; the left eye is a little smaller than the right, in 

 both the peduncle bears a small acute tooth anteriorly near the cornea, as in other species. 



Wliile in the typical species the antennular peduncle attains not the tip of the antennal 



