CANCROIDEA. 247 



extramedial are usually coalescent, and the latter, with the intra- 

 rnedial, may or may not be distinct. Areolet 1 L is sometimes present 

 as a tubercle, or spine, and 2 L and 3 L united, at times constitute a 

 distinct areolet, the sulcus behind terminating between the third and 

 fourth marginal teeth or spines. Traces of 5 L, 6 L are occasionally 

 apparent. The teeth or spines of the antero-lateral margin are usually 

 six and sometimes seven. We infer from the teeth of a Ruppellia, 

 that the first and second are both orbital (or D, D'), and the following 

 four are E, N, T, S; and a posterior one when present, s'. 



ERIPHIA SCABRICULA. 



Carapax partim scabriculus, areold 3Jf circumscriptd, 2M \M 2 

 coalitis, non transversim rugatis, regione antero-laterali non areolato; 

 fronte integro, siibtilissimb denticulate; margine orbitali nee infra nee 

 supra spinuloso, extu-s \-dentato; margine antero-laterali subacuto, 

 -spinuloso (angulo orbitali excluso}. Pedes antici omnino scabriculi 

 manu carpoque pubescentibus ; digito mobili cum dente basali paulo 

 grandi armato. Pedes postici subtenues, paulo Jvirsuti. 



Carapax in part scabrous, areolet 3 M circumscribed, 2 M, 1 M, 2 F 

 coalescent, not transversely corrugate, antero-lateral margin not 

 areolate, front entire, very minutely denticulate; orbital margin 

 neither above nor below spinulous, exteriorly one-toothed ; antero- 

 lateral margin subacute, four-spinous, orbital angle excluded. Ante- 

 rior feet throughout scabrous, hand and carpus pubescent ; moveable 

 finger armed with a large basal tooth. Posterior feet rather slender, 

 somewhat hirsute. 



Plate 14, fig. 5 a, male, enlarged one and a half diameters ; b, under 

 view of front and mouth. 



Feejee Islands; also Society Islands, and Sooloo Sea. 



Length of carapax of a male, six and three-fourths lines ; greatest 

 breadth, ten lines; ratio of length to breadth, 1:1-48. A specimen 

 from Tahiti had a grayish colour clouded with brown; four posterior 

 legs yellowish, with broad bands of deep brown, or brownish red. 



