408 ME. J. R. HEKDERSOJSr— A CONTRIBUTIOiS' 



The whole surface of the hody and limbs is covered with a short dense pubescence. 

 The caraj)ace is flattened, and smooth under the pubescence, except towards the lateral 

 margins where a few granules occur ; tlie whole under surface is finely granulated. 

 The amount of granulation on the palm of the chelipedes varies in different individuals ; 

 the granules are polished and are sometimes arranged in lines. The fingers and the 

 granules on the palm are crimson, a character mentioned by Haswell. The sternal sulci 

 of the female end in tubercles opposite the bases of the first pair of ambulatory legs. In 

 Herbst's figui'e the lateral teeth of the carapace are exaggerated in size. 



In the British Museum there are specimens from Moreton Bay, Australia, labelled 

 Conchcecetes conchifera, Haswell, which are not specifically distinct from those described 

 above, tind my examples also agree comjiletely with Haswell's description and figure ; 

 so his species must therefore, I think, be united with C. artijiciosiis. 



The largest male is 23 mm. long and 24 mm. broad ; the right chelipede is 38 mm. long. 



Distribution. China {Stimj)soii) ; X.E. Australia {Haswell, Brit. Mm.) ; Singapore 

 (Walker). 



Group E/ A N I N I D E A . 



Genus Raninoides, Milne-Edw. 

 201. Raninoidbs serratifrons, n. sp. (PL XXXVIII. figs. 10-12.) 



Cheval Par, a female [Thurston). 



The carapace is minutely granulated in front, especially along a line connecting the 

 two lateral spines of the carapace and in the space between this line and the frontal 

 margin. Fainter granulations are also seen toAvards the sides of the caraimce, but they 

 disappear entii'ely about half-way back ; the remainder of the upper surface is smooth 

 and glabrous. The median frontal projection is broad and its apex obtuse, but scarcely 

 rounded, while the margins are armed with small spinose teeth ; the rest of the frontal 

 margin or upper orbital margin is finely serrated and presents two subequal fissures, 

 the lobe between which is drawn out into a short spine or tooth. The outer fissure is 

 bounded externally by the prominent antero-lateral spine. On the upper surface of 

 the rostrum and in the middle line a slight carina runs from the apex as far back as 

 the granulated transverse line connecting the two lateral spines. A single lateral spine 

 occurs on each side of the carapace, a short distance behind the antero-lateral spine, and 

 it is slightly smaller than the latter. The basal joint of the antennal peduncle, which 

 forms the lower boundary of the orbit, is finely spinulose. 



The chelipedes have the ischium unarmed and tlie merus dilated externally at its base ; 

 the carpus is finely granulated above, and has a short spine at the distal end of the upper 

 and inner margins. The hand is finely granulated, and the lower margin carries three 

 spines, of which the first or proximal is small and the other two larger and subequal ; 

 on the upper surface are two fine subparallel ridges, separated by a narrow interval. 

 The fingers are slender, curved, and compressed ; the immobile one with five denticles on 

 its inner margin. The external maxillipedes have the merus faintly granular, and the 

 ischium is about one third of its length longer than the merus, and almost smooth. 



