102 DE. J. G. DE MAX OX THE PODOPHTHAI,MO¥S 



portions of the postfrontal ridge. As in 1. Gallianira, tlie tipper 

 surface of the cephalotliorax presents on each side a transverse, 

 somewhat oblique impression behind the lateral portions of the 

 postfrontal ridge ; these impressions are bordered posteriorly on 

 each side by a transverse elevated line, which proceeds from 

 the external margin of the epibranchial tooth towards the meso- 

 gastric region. The orbital margins are smooth and entire. The 

 external angles of the orbits are but little prominent, and the 

 external margin of these angles appears smooth and entire. The 

 epibranchial tooth is about as prominent as that of T. Gallia- 

 nira. Behind this tooth the lateral margins of the cephalothorax 

 are marked with numerous, oblique, piliferous elevated lines. 

 The posterior margin of the cephalothorax, which is somewhat 

 concave in T. Callianira, is perfectly straight in this species. 



The posterior half of the upper surface is somewhat punctate, 

 and the gastric region is minutely rugose behind the six ridges 

 or ridge-Hke elevations with which the cephalothorax is marked 

 anteriorly. The pterygostomian regions and the inflected sides 

 of the carapace are faintly rugose. 



As regards the outer foot-jaws, the characteristic longitudinal 

 impressed line, which in many species is found on the outer 

 surface of the ischium -joint, is completely wanting in this species. 



The male abdomen is triangular and less narrowed towards the 

 terminal half than in T. Gallianira. The lateral margins of the 

 penultimate joint are somewhat converging towards the anterior 

 margin of this joint, the posterior margin of which is much 

 broader than long. The terminal segment, which is rounded at 

 the tip, and the lateral margins of which are slightly concave, is 

 about as long as broad at its base. 



As the smaller chelipede is wanting, I can only describe the 

 larger one. The arm and the wrist present the same structure 

 as in T. Gallianira ; the hand also much resembles that of the 

 preceding species, but the lower finger is not at all deflexed. 

 The fingers are distinctly shorter than the palm, which has the 

 outer and inner surfaces quite smooth and convex; the under 

 margin of the palm is rounded and smooth, the upper margin 

 is minutely granular. The mobile finger is slightly arcuated, 

 gaping, and minutely granular above ; both fingers are grooveless, 

 the index scarcely presenting any trace of a longitudinal groove 

 near the tip. In their denticulation the fingers wholly agree 



