THE SPECIES OF AEGLA — SCIBMITT 511 



serrate, serrations spinulated, small spine-tipped; in thickness crest 

 tapers more or less evenly from base to margin, dorsal surface not 

 impressed or excavate. No evident ridging on dorsal surface of 

 carpus other than the usual transversely scabrous, somewhat nodu- 

 lated ridge above the spined inner margin of the joint. Antero- 

 internal angle or lobe of carpus armed with an acute, corneous spine 

 of good size, almost invariably accompanied by a smaller spine lying 

 immediately against the posterior border of the larger spine; one 

 or two additional still smaller spines or spinules may be inserted on 

 the posterior margin of the carpal lobe. Dorsal longitudinal margin 



d 



Figure 63. — Aegla abtao, 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. 



of merus of cheliped armed with a row of conical tubercles tipped 

 with several or a few closely juxtaposed pointed corneous scales; at 

 middle of anterior margin of merus there is a low but evident ante- 

 riorly convex and fine denticulate swelling. Inner margin of ventral 

 surface of ischium with a prominent, stout, conical, acutely corneous 

 tipped spine at anterior end, a very much lower (squat) and perhaps 

 a little broader one, also with acute corneous tip, at posterior end ; at 

 anterior third of margin there is a similar about subequal swelling 

 of the same sort as the posterior one, and between these two some- 

 times a very slight or merely suggested swelling or nodulation. 



Anterior dorsal angle of epimeron of second (in lateral view, ap- 

 parent first) abdominal somite somewhat produced and armed with 



