132 "ENDEAVOUR" SCIENTIFIC RESULTS. 



Three ridges present on carapace, one between the spines 

 of the last pair, which is thrice interrupted, two gastric 

 ridges, the posterior of which is interrupted at the middle, 

 while the anterior one is broadly interrupted. Front cut 

 into six rounded teeth, not including the inner supra- 

 orbital angles ; the middle two are slightly more prominent 

 than the next pair, which are wider and somewhat oblique 

 on their inner slope ; outer pair least advanced, narrow and 

 deeply separated from the second pair. Antero-lateral 

 borders cut into six teeth, five of which are spiniform and 

 similar, the sixth one a little longer. The second tooth is 

 very small, dentiform, and is not salient beyond the outer 

 slope of the first tooth, of which it seems to form an 

 integral part. Orbit with a slight dorsal inclination; the 

 major diameter is about two-fifths as wide as the inter- 

 orbital distance ; inner end of lower margin in the form of 

 a broad, blunt tooth. A granular ridge on lobule at outer 

 angle of basal segment of antenna. 



Chelipeds of female stoutish, hairy on the depressed 

 portions of the exposed surfaces. Three enlarged spines 

 on anterior border of arm. Wrist with granular costae on 

 upper and outer surfaces, the inner angle strongly spini- 

 form, three spinules near outer angle. Hand Avith five 

 granular costae, and on the upper surface five spines. 

 Merus of last leg over twice as long as wide ; posterior 

 border of propodus spinous. 



Relationships. The species looks much like C. spinifera 

 (Miers) 18 , but the latter has a wider carapace, the median 

 pair of frontal lobes are not narrower than the submedian 

 pair, the second tooth of the antero-lateral margin is of 

 greater size and prominence, and the carpus of the last 

 pair of feet has a strong spine on its posterior margin 19 , 

 and the propodus is unarmed. 



Miers Kept. Zool. Coll. "Alert," 1881-2, London, 1884, Crust., 

 p. 283, pi. xxiii., figs. C and c. 



19 Dr. Caiman kindly examined tbe type of spinifera and sent 

 sketches of the frontal teeth and the natatory ]eg for comparison. 



