Carcinological Fauna of India. 173 



region is constricted. The rostrum is moderately prominent, the frontal 

 lobes very small and subacute. On the cardiac region is a bilobated 

 prominence, which is usually very much elevated ; there is a small 

 angulated prominence on the bepatic regions, and occasionally one or 

 two granules on the branchial regions, which are not at all convex. 

 Eye-peduncles with a blunt tubercle in the middle of their anterior 

 margins. The merus-joints of the outer maxillipedes are narrowed and 

 subacute at their distal ends, where they are articulated with the next 

 joints. The chelipedes (in both sexes) are rather slender ; margins of 

 the arm, wrist, and palm usually with a few granules or spinules ; 

 merus somewhat trigonous ; fingers as long as the palm, and somewhat 

 incui'ved, with their inner margins denticulated, and having between 

 them when closed (in the males) a small hiatus at base. The ambu- 

 latory legs are slender, filiform, and very much elongated, the second 

 legs being, in an adult male, four times as long as the postfrontal por- 

 tion of the carapace ; the dactyli of the two posterior pairs only are 

 distinctly falciform ; both chelipedes and ambulatory legs are scantily 

 clothed with long hairs. Length of carapace (including rostrum) of an 

 adult male about 5 lines (105 millim.), breadth about 3 lines (6 millira.); 

 length of second leg about 1 inch 8 lines (42 millim.) ; an adult female 

 has the carapace relatively somewhat broader, length nearly 5| lines 

 (12 millim.), breadth 4 lines (8"5 millim.). 



The bilobated prominence on the cardiac region and tuberculated 

 eye-peduncles serve to distinguish this species." (Miers). 



This species is included in the Indian Fauna on the authority of 

 Professor Henderson : there are no specimens in the Indian Museum 

 collection. 



Paratymolus, Miers. 



Paratymolus, Miers, P. Z. S., 1879, p. 45. 



Paratymolus, Haswell, Ann. Mag. Nat. Hist., 1880, Vol. V. p. 302 ; and Cat. 

 Austr. Crust., p. 142. 



Paratymolus, Ortmann, Zool. Jahrb. Syst., &c, VII. 1893-94, p. 34. 



I agree with Ortmann in placing this genus among the Achseus- 

 like Maiidse : the position of the external genitalia of an ovigerous 

 female in the Museum collection is conclusive. 



Carapace elongate-subpentagonal, not depressed. 



Eye-stalks long, slender, salient, non-retractile : no orbits or pre- 

 o.cnlar and post-ocular spines. Antennules longitudinally folded beneath 

 the rostrum. 



Antennas long, exposed, dorsally, in the greater part of their extent : 

 the basal joint slender, but so short as hardly to reach the front. 

 19 



