254 Carcinological Fauna of India. 



concave portion is horizontally produced to form an acute tooth, the tip 

 of which projects beyond the margin of the buccal cavern. 



In the male the sternum is elegantly beaded along the anterior 

 and lateral borders, and round the line of contact with the tip of the 

 ahdomen : in the female only the anterior border is beaded. 



The chelipeds in the adult male are nearly twice the length of the 

 carapace: the arms are cylindrical, and have the upper surface in its 

 proximal half or two-thirds beaded in longitudinal lines ; the under 

 surface is granular, except at the distal end and along the outer border : 

 wrist smooth : hand half again as long as broad in the adult male, about 

 twice as long as broad in the female ; its inner surface, in old males only, 

 with numerous vesicular granules : fingers in both sexes as long as the 

 hand is broad, meeting only at tips, and having the opposed edges dis- 

 tantly and inconspicuously dentate. 



The first pair of true legs exceed the arm in length by their 

 dactylus. 



The abdomen of the male is narrowly triangular, and is devoid of 

 any median denticle : it consists of 5 pieces, but the joint between the 

 3rd and 4th pieces is rigid. 



The carapace of the male is 11 millim. long and 10 niillim. broad ; 

 that of the female is slightly larger. 



Colours in spirit : pearly grey with numerous darker mottled 

 markings. The confluent gastric and cardiac regions are defined by a 

 brown line, which forms with an ill defined ring of the same colour on 

 either branchial region a pair of spectacles ; the hepatic regions edged 

 with brown : broad cross-bands of brown across middle of arm, base of 

 hand, and middle of fingers ; wrist brown : legs with yellowish brown 

 cross-bands. 



Common along Coromandel coast. Also from Mergui. 



This species has more the facies of Philyra than of Lencosia. 



Myrodes, Bell. 



Myrodes, Bell, Trans. Linn. Soc. Vol. XXI. 1855 p. 298, and Oat. Leucos. Brit. 

 Mus. p. 13. 



Myrodes, Miers, ' Challenger ' Bracliyura, p. 297. 



Closely resembles Myra in all details of form, but differs conspicu- 

 ously in the following characters : — 



(1) the chelipeds are much shorter, their length being hardly If 

 times that of the carapace : 



(2) the hands are not | longer than broad and are inflated and 

 subglobular : 



(3) the fingers are much longer than the hand, are extremely 

 slender and not much compressed, and are of about the same diameter 



259 



