﻿216 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 102 



carpus of clieliped consisting of 4 instead of 3 ; only 1 acute tubercle 

 (spine) present near upper distal end of merus of cheliped, and lower 

 surface of same podomere witli 14 tubercles in mesial row. The usual 

 secondary sexual differences occur with smaller hooks on ischiopodites 

 of third and fourth pereiopods and less well-developed armature of the 

 coxae of the fourth and fifth pereiopods. First pleopod with all ter- 

 minal elements represented and disposed as illustrated (fig. 82, A, i). 

 Accessory shoulder, typical of the group of which this species is a 

 member, lies more laterad in the second- form male. (See 3Ieasure- 

 nients.) 



Allotypic female. — Differs from the holotype in the following re- 

 spects: Caudal portion of areola punctate; sinistral outer spine of 

 telson broken but was bidentate; chela comparatively broader and 

 shorter with upper opposable margin of immovable finger bearing 

 a row of 5 tubercles, of which the second from base is largest, and 

 lower opposable margin with 1 large tubercle at base of distal two- 

 fifths ; opposable margin of dactyl with a row of 7 tubercles, of which 

 third from base is largest ; lower mesial row of 14 tubercles on merus 

 of cheliped. 



Sternum immediately cephalad of annulus ventralis with paired 

 caudally projecting tuberculate prominences which extend over (ven- 

 t rally) the cephalic margin of the latter. Annulus ventralis (fig. 

 82, d) irregularly shaped with its greatest length in the transverse 

 axis. Dextral wall very high and relatively thin ; cephalosinistral wall 

 much thicker and of more irregular contour. Sinus originates near 

 cephalic margin of annulus and extends caudodextrad slightly caudad 

 of midlength ; here it makes an S-curve just crossing the median line 

 and turns caudad and slightly dextrad almost to caudal margin of 

 annulus. 



Measurements {in millimeters) . — 



Carapace: Holotype 



Height 15.0 



Width 14. 6 



Length 31. 9 



Areola: 



Length 10. 1 



Width 1. 5 



Rostrum: 



Length 9. 



Width 6. 4 



Right chela: 



Length, inner margin of palm 10. 9 



Width of palm 6.9 



Length, outer margin of hand 28. 2 



Length of dactyl 15. 3 



