382 A. Alcock — Car etiological Fauna of India. [No. 3, 



branchial groove faint: the second tooth of the lateral border is a little 

 more prominent than the first. Front about two-ninths the breadth of 

 the carapace, square cut, longitudinally grooved, but not bilobed. 

 Orbits slightly siuuous, hardly oblique : eyestalks little curved, stoutish, 

 not quite reaching end of orbit. In the male the lower border of the 

 orbit is peculiar : it is finely denticulate at its internal extremity and 

 has a small lobule at its outer angle, and in between these it has the 

 form of a prominent deflexed somewhat triangular lobe. In the female 

 the lower border of the orbit is finely crenulate throughout. The 

 external maxillipeds do not quite meet ncross the buccal cavern, and 

 the suture between their ischium and merus is a little oblique. 



All three borders of the arm are serrated, and the iuner angle of 

 the wrist and upper border of the arm are very finely denticulated. 

 There is a strong "musical crest" obliquely parallel with the inner 

 border of the arm and in the middle third of that border. Palm longer 

 than the arm, its inner surface is hairy and carries a spine near the 

 carpal end about midway between the upper and lower borders. The 

 fingers are considerably less than two-thirds the length of the palm : 

 there is a molariform tooth at the base of the dactylus and a larger 

 slanting one on the immobile finger. 



The upper surface of the legs, especially in the case of the third 

 pair, is hairy. 



In the Indian Museum are 4 specimens from Mergui and Akyab : 

 the carapace of the largest specimen is 10 millim. long and 14 millim. 

 broad. 



75. Macrophthalmus tomentosus, Eyd. and Soul. 



Macrophthalmus tomentosus, Eydoux and Souleyet, Zool. Voy. Bonite, I. 

 p. 243, pi. iii. fig. 8, (1841) : Milne Edwards, Ann. Sci. Nat., Zool., (3) XVII I. 1852, 

 p. 159 : A. Milne Edwards, Noav. Archiv. du Mus. IX. 1873, p. 279 : de Man, Jonrn. 

 Linn. Soc, Zool., XXII. 1887-88, p. 122. 



Carapace studded with very fine granules : its length is about two- 

 thirds its greatest breadth, which is behind the middle of the lateral 

 border, the lateral borders being decidedly divergent posteriorly. On either 

 epibianchial region, behind the branchial groove, are two finely beaded 

 obliquely-longitudinal lines. The first two teeth of the lateral borders 

 are square-cut. 



Front, in its narrowest part, about one-eleventh the greatest 

 breadth of the carapace ; though longitudinally grooved it is not bilobed. 



Orbits hardly sinuous, not oblique ; their upper border microscopi- 

 cally beaded, their lower border finely crenulate. The eyestalks are 

 hardly curved, and the eyes do not reach to the end of the orbits. 



