APPENDIX. 



It is only during press of this paper, that I became acquainted vvith Kkmp's paper on 

 the Brachyura of the Chilka Lake (Ree. Ind. Mus. Calcutta, v. 5, 191 3, p. 199 — 325) in which 

 the interesting species Camptandrium sexdentatum Stimpson is again described and figured. On 

 the whole there is a very good agreement between Kemp's statements and mine (p. 65 — 68); 

 we may only remark, that in young specimens the external orbital angle and the second 

 epibranchial tooth are more acuminate than in the adult, that, judging from Kemp's figure, the 

 ischium of the external maxillipeds present straight, not concave, lateral margins, that the adult 

 female has the meropodites of the walking legs quite unarmed distally, and that in the sex 

 named the dactyli of the ambulatory legs are about equal in length to, not distinctly shorter 

 than, the propodites. 



Kemp maintains Camptandrium among the Variniinac, but still I adhere to my opinion, 

 that all the evidence gathered points to the near affinity of the genus to the Ocypodidae 

 (subfam. Macrophthalminaè). 



Kemp's specimens were obtained in the Chilka Lake (Lower Bengal) at a time, whfen the 

 water was absolutely fresh. At the same time, however, minute specimens of the present species 

 are recorded from the Ennur backwater, near Madras, "in water of specific gravity 1.0025" 

 (exact salinity not stated). It follows, from the much varying hydrographical conditions of the 

 Chilka Lake, that the species is able to withstand a rather wide range of salinity. 



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