474 PRO'CEE'DIN'GS OF THE NATIONAL MUSEUM vol. 91 



cated; only the first has its anterolateral angle spined, and forms 

 an offset in the general trend of the anterolateral margin of the 

 anterior portion of the carapace. 



Large hand moderately inflated, somewhat elongated. Movable 

 finger carries a well-formed, often small spiny lobe on outer margin 

 near base. Palmar crest fairly large, conspicuous, somewhat sub- 

 disciform, distinctly shallowly impressed or excavate with upturned, 

 more or less serrate, and definitely sharply spinulose margins; outer 

 margin of hand finely spinulose. 



e a 



Figure SO. — Aegla castro, new species, male holotype: a. Dorsal view; b, 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. 



Ridge above inner spined margin of carpus armed with conical 

 tubercles, of which the greater part are more properly acute conical 

 spines; the anterior internal lobe or angle of the carpus is broadly 

 conical and tipped with a small sharp corneous spine; upper margin 

 of merus armed with slender spines, of which the most anterior and 

 sometimes the largest is situated directly on the anterior margin of 

 the merus, the next spine may be slightly larger or slightly smaller 

 than the anteriormost spine. Inner margin of ventral surface of 

 ischium also has a strong conical spine at anterior end, and generally, 

 in addition, a smaller one of variable size and acuity at the posterior 

 end, and a much smaller one or two in between. 



Meri of ambulatory legs with a small spinule or two near anterior 

 end of lower outer margin on level with posterior portion of articular 

 membrane or behind it, perhaps to some degree comparable to the 

 similarly placed but relatively ever so much larger, conspicuous 



