15G A. Alcock — Carcinohgical Fauna of India. [No. 1, 



conceals their serrated and spiny sculpture. Two brushes of hair on 

 the under surface of the dactyii. 



Colours in spirit — mottled shades of warm brown. 



In the Indian Museum are 11 females and 3 small males from the 

 Laccadive reefs (besides 5 females and 1 small male from Mauritius and 

 2 females from Samoa). 



Subfamily III. Chlorodim. 



Alliance I. Xanthodioida. 



Xanthodes, Dana. 



Xanthodes, Dana, Proc. Acad. Nat. Sci. Philad. 1852, p. 75 ; and U. S. Expl Exp. 

 Crust, pt. I. p. 175. 



Xanthodes, A. Milne Edwards, Ann. Sci. Nat. Zool. (4) XX. 1863, p. 227 ; Nouv. 

 Archiv. du Mns. IX. 1873, p. 200 ; and Miss. Sci. Mex., Crust, p. 259. 



Xanthodes, Miers, Challenger Brachyura, p. 127. 



[Type Xanthodes lamarchii (Edw.)] 



Carapace thick but somewhat depressed, moderately broad, some- 

 what hexagonal, the regions delimited and to a certain extent areolated 

 in the anterior two-thirds. 



Fronto-orbital border considerably more than half the greatest 

 width of the carapace in extent. 



Front broad (contained about 3J times in the greatest width of the 

 carapace) bilobed. 



Antero-lateral border cut into four lobes or teeth. Orbital margin 

 with the three grooves either fairly distinct, or quite indistinct. 



Basal antennal joint broad and very short ; the flagellum, which is 

 rather longer than the orbit, lodged in the orbital hiatus. 



Anterior edge of merus of external maxillipeds almost transverse. 



Chelipeds either equal or unequal in both sexes ; the arm in repose 

 is nearly or quite hidden beneath the carapace ; fingers pointed, not 

 hollowed at tip. 



Legs stoutish, more or less hairy and granular or spiny along the 

 upper border. 



Abdomen of the male five-jointed. 



Of the two Indian species included in this genus, one (Xanthodes 

 lamarchii) has a certain resemblance to Lioxantho punctatus, from which 

 it is easily distinguished by the breadth of the fronto-orbital margin ; the 

 other (Xanthodes notatus) has a strong resemblance to Phymodius 

 scidptus, from which it is at once distinguished by the sharp-pointed 

 fingers, not hollow at tip. 



