EEPORT ON THE ANOMURA. 3 



sulci in the females. Though some doubt may be eutertaiued as to whether this classifi- 

 cation is a natural one, it must be admitted that a subdivision of some kind is necessary 

 and certainly of use to the systematist. Altogether the group at present stands very 

 much in need of revision. In the account which follows I have adopted the arrangement 

 laid down by Stimpson. 



Genus Dromia, Fabricius (restrictum), Stimpson. 



Dromia, Fabricius, Suppl. Ent. Syst., p. 359, 1798 {part). 



„ Milne-Edwards, Hist. Nat. des Crust, t. ii. p. 170, 1837 (pari). 



„ De Haan, Crust. Japon., p. 104, 1850 (part). 



,, Dana, U.S. Explor. Exped., vol. xiii., Ciust., part i. p. 402, 1852 {part). 



„ Stimpson, Proo. Acad. Nat. Sci. Philad., p. 64, 1858. 



Carapace subglobose, usually pilose. Palate smooth. Sternal sulci in the female not 

 approximated, only produced as far as the segment which bears the second pair of legs. 

 Feet of moderate size, the meri not dilated. Chelijjedes with their apices calcareous. 

 Last two pairs of legs subchelate, the penultimate joint terminating in a spiniform 

 process. Some of the species reach a length of several inches. 



Dromia ciliata, n. sp. (PI. L fig. 1). 



Characters. — Carapace subglobose, surface minutely punctate, polished, with a dense 

 fringe of hairs extending transversely between the antero-lateral angle of either side ; the 

 breadth exceeding the length. Front strongly deflexed, with three subacute teeth, of 

 which the two lateral are more prominent and placed almost horizontally, the mesial tooth 

 channelled superiorly, deflexed, barely visible when the carapace is looked at from above. 

 Gastric region convex, crossed in front by the fringe of hairs previously mentioned, the 

 latter placed on an ill-defined ridge which forms a false anterior boundary to the 

 carapace ; the space between this ridge and the frontal border is densely pubescent and 

 directed forwards, a shallow groove, however, exists in the middle line and is continued 

 on to the mesial frontal tooth. The remainder of the gastric region is smooth, with the 

 exception of two small pits towards the posterior limit. Cardiac region moderately 

 circumscribed, smooth. Antero-lateral border of the carapace not defined (unless we 

 consider part of the ciliated ridge to represent this). Lateral border divided into two 

 subequal halves by the well-marked cervical groove, the anterior part is slightly convex 

 (viewed from above) and dii-ected forwards and downwards, the posterior and longer 

 part almost straight, directed backwards and downwards. The cervical groove passes 

 obliquely backwards, and ends by dividing into two branches which embrace the cardiac 

 area ; the anterior of these is somewhat curved, and ends in a well-marked pitted 

 depression on the gastric area. The posterior border is slightly curved forwards. 



