THE SPECIES OF AEGLA — SCHMITT 



481 



teriorly the median carina fades out in the distal third of free portion 

 of rostrum, to become merged in the thickened tip of the rostrum; 

 there is definite groove or depression either side of the medially raised 

 portion of the rostrum and its somewhat thickened lateral margins ; 

 the rostral carina, though prominent, has a bluntly rounded-oll crest 

 on which there is a scattering of very fine, almost microscopic scabrosi- 

 ties. Epigastric prominences low, obsolescent, protogastric lobes 

 equally poorly developed, causing scarcely more than a break in 

 reflected light. 



Figure 53. — Aegla denticulata Nicolet, male neotype: a, Dorsal view; h, lateral view of 

 anterior portion; c, sternum of third and fourth thoracic somites; d, inner ventral margin 

 of ischium of left cheliped; e, lateral view of second abdominal epimeron. a, b, natural 

 size; c-e, twice natural size 



Orbital sinus fairly narrow, an obtuse-angled V; orbital spine 

 spiniform, rather high up on inner slope of anterolateral spine; extra- 

 orbital sinus small, a narrow V-shaped notch. Anterolateral spines 

 moderately slender-conical, sharply acute, reaching about to or a little 

 past middle of cornea. Anterolateral angle of first hepatic lobe a 

 stout, somewhat exserted spine ; second and third lobes well marked 

 by sizable notches, although their anterolateral angles are neither 

 sharp nor particularly well developed, at most a little scabrous. 



Hands, compared with most Aeglas, relatively feeble and under- 

 developed, small and only lightly convex ; prehensile margins of fin- 

 gers fitting closely together; movable finger with a sharp spinous 

 lobe on outer margin near base (in the largest specimen this lobe 

 takes the form of a stout, sharply pointed, conical spine). Upper 

 margin of palm forming a thick crest conspicuously spined, spines 

 fairly slender and of good size, usually four spines ; sometimes there 

 is an additional smaller spine inserted near the base of one of the 

 larger ones. 



