1899.] A. Alcock — Oarcinohgical Fauna of India, 17 



Antero-lateral borders oblique, not much curved, cut into five teeth 

 including the outer orbital angles. 



Orbits with two wide fissures in the upper margin, the lower margin 

 concave with the inner angle dentiform and prominent. The anten- 

 nules fold transversely. 



Basal antennal joint longer than broad, slender, not nearly filling 

 the orbital hiatus, movable ; the flagellum, which stands in the orbital 

 hiatus, long. 



Epistome short fore and aft, sunk ; though well enough delimited 

 from the palate somewhat encroached upon by the external maxillipeds. 

 Buccal cavern square, its greatest length about equals its greatest 

 breadth : external maxillipeds rather elongate, especially the meius. 



Chelipeds moderately massive, shorter than any of the first 3 pair 

 of legs ; arm wrist and hand with spines ; hand prismatic, fingers stout 

 and strongly toothed. 



Legs long and slender : in the fourth pair the merus and carpus 

 though shortened are not much broadened, and the propodite and 

 dactylus are foliaceous and typically paddle-like. 



The abdomen of the male consists of 5 segments, the 3rd-5th 

 terga being fused. 



As Miers says, this genus is allied to Bathynectes : in fact it is 

 nearer to Bathynectes than to Lupocyclus, 



3. Parathranites orientalis^ Miers. 



Lupocyclus (Parathranites) orientalis, Miers, Challenger Brachyura, p. 186, 

 pi. xvii. fig. 1. 



Carapace aboat three-fourths as long as broad (spines included), 

 decidedly convex, the regions well demarcated, the surface granular 

 and somewhat hairy — especially at the antero-lateral margins. There 

 is always a tubercle in the middle line on the posterior part of the 

 gastric region and sometimes three, in a transverse series, in front of 

 it : there are one, or two close side-by-side, in the middle of the cardiac 

 region, and from two to four in a fairly longitudinal series along the 

 inner limit of either epibranchial region. 



Front hardly delimited from the almost obsolete inner supra-orbital 

 angles beyond which it projects, cut into four horizontal subacute teeth 

 of nearly equal size. 



Antero-lateral borders cut into 5 teeth, of which the first (the 

 outer orbital angle) is remarkably prominent, the next three are very 

 acutely anteriorly-acuminate, and the last — equally acute — stands out 

 nearly at right angles to the others. 

 J. II. 3 



