280 A. Alcock — Garcinological Fauna of India. [No. 2, 



There is almost no hair on the carapace, — none sufficient to con- 

 ceal its grooving and texture : on the chelipeds there is, on the upper 

 edge, extending along basal part of finger, a narrow fringe of hair, and 

 on the lower edge a narrow fringe extending as far as the end of the 

 merus : on the first two pairs of true legs there is no hair at all in 

 either sex ; and on the last two pairs of legs there is not very much hair. 



The chelipeds of males that are as big as the largest ovigerous 

 females are hardly asymmetrical. 



Ovigerous females have the carapace 14 millim. long and 16 millim. 

 in extreme breadth. 



In the Indian Museum collection are 21 specimens from various 

 stations along the shores of the Bay of Bengal from Mergui to Madras, 

 one of these — the smallest and most immature of all — belongs to Dr. 

 Anderson's Mergui collection and is referred to in Dr. de Man's report 

 (J. L. S., Zool., Vol. XXII) as allied to D. granulata. 



If they are not De Haan's species, they are a mere variety of D. 

 facchino. 



100. Dorippe astuta, Fabr. 



Dorippe astuta, Fabricius, Bnt. Syst. Suppl. p. 361. 



Cancer astutus, Herbst, Krabben, III. iii. 45, pi. lv. fig. 6. 



Dorippe astuta, Bosc, Hist. Nat. Crust. I. 208 : Milne Edwards, Hist. Nat. 

 Crust. II. 157: Haswell, Cat. Austral. Crust, p. 136: A. 0. Walker, Journ. Linn. 

 Soc., Zool., Vol. XX. 1886-90, p. Ill : Ortmann, Zool. Jahrbuch., Syst., VI. 1892, 

 p. 562 : Henderson, Trans. Linn. Soc, Zool., (2) V. 1893, p. 405. « 



Body and appendages not pubescent as in D. dorsipes and. facchino, 

 but covered with short distant hairs that are not very plainly visible 

 to the naked eye : the hairs on the edges of the propodites and dactyli 

 of the first two pairs of true legs, however, form a long thick fringe. 



The carapace is extremely flat, almost laminar ; its surface is smooth, 

 and the regions are defined by grooves. 



Extreme length of carapace a little greater than extreme breadth. 



The spine at the outer angle of the orbit does not nearly reach 

 to the level of the tip of the frontal teeth : the part of the carapace 

 that covers the base of the eyestalk is not hood-like, and has not its 

 angles pronounced : the spine at the inner canthus of the orbit is quite 

 rudimentary. 



The lateral margins of the carapace are smooth. The abdomen 

 of the male is unarmed, that of the female has the 3rd and 4th terga 

 bluntly and very inconspicuously carinate transversely. 



The chelipeds are smooth when denuded ; in the adult male they 

 are asymmetrical just as in I), dorsipes and facchino. 



