﻿214 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 102 



Antenna broken, but in other specimens extends caudad to fourth 

 abdominal segment ; antennal scale broad with a well-developed spine 

 on outer distal margin ; lamellar portion rounded mesially, and broad- 

 est proximad of middle (fig. 82, h) . 



Eight chela slender, with inflated palm; palm studded with seti- 

 f erous tubercles on all surfaces. Inner margin of palm with a row of 

 nine tubercles which are only slightly more prominent than others 

 flanking this row. In addition to squamous tubercles on lower surface 

 of palm a distinctly larger tubercle present near base of dactyl. 

 Fingers not gaping. Opposable margin of immovable finger with a 

 row of three small tubercles on basal fifth, the distal one largest; a 

 strong tubercle extends mesiad from lower opposable margin near 

 midlength of finger ; otherwise opposable margin with crowded minute 

 denticles. Opposable margin of dactyl with 2 proximal rows of 

 rounded tubercles : an upper row of 10 and a lower one of 6 ; between 

 and distad of these 2 rows are crowded minute denticles. A low 

 longitudinal ridge present on upper surface of both fingers ; all sur- 

 faces of fingers with setiferous punctations except along proximo- 

 mesial portion of dactyl where squamous tubercles occur in basal sixth. 



Carpus of first right pereiopod about 1.7 times longer than broad 

 with the usual oblique furrow on upper surface represented by a broad 

 shallow depression ; all surfaces with squamous tubercles, more abun- 

 dant in mesial half of segment; mesial surface with an oblique row 

 of three spikelike tubercles. Lower mesiodistal margin with a strong 

 acute tubercle, and a similar one on lower laterodistal margin. 



Merus of first right pereiopod with 2 irregular rows of tubercles 

 on upper margin and a few scattered ones between; 2 strong acute 

 tubercles in distal portion ; lateral surface with scattered punctations ; 

 lower surface with two rows of tubercles : lateral row of 14 and mesial 

 row of 16, and in addition a few tubercles on both sides of these 2 

 rows. 



Ischiopodites of third and fourth pereiopods with hooks; hooks 

 simple, that on third extending proximad of ischiopodite, and that 

 on fourth opposed by a tubercle on basipodite. Coxopodites of fourth 

 and fifth pereiopods with ventrally projecting prominences: those 

 on fourth swollen, and those on fifth smaller and less bulbiform. 



First pleopods symmetrical and reaching coxopodite of third pereio- 

 pod when abdomen is flexed. (See description of pleopod under 

 Diagnosis.) 



Morphotypic male^ Form II. — Differs from the holotype in the fol- 

 lowing respects : Eostrum more contracted distally ; caudal portion of 

 areola punctate ; all spines on telson simple ; mesial row of tubercles on 



