igiQ-] S. Kemp : Notes on Crustacea Decapoda. 315 



conspicuous and the entire upper surface more smooth. There are 

 tubercles, most evident laterally, but all are smaller than in S. 

 globosa and they do not tend to form transverse rugae. There is, 

 however, a granular elevation near the extra-orbital angle and a 

 protuberance near the base of the last pair of legs. 



The lateral border, detined in S. glohosa as a sharp crest running 

 the whole length of the carapace, is deficient. It is visible for a 

 short distance behind the orbital angle and the side-walls beneath 

 it are longitudinally grooved, but further back it is altogether 

 wanting, the side- walls in the posterior half of the carapace meeting 

 the upper surface without interruption. 



The front is slightly broader than in the allied species and is 

 minutely nicked at the apex. The distal edge is thickened and 

 behind it there is a large circular and completely circumscribed 

 depression. There is a beaded ridge on the floor of the orbit as in 

 S. glohosa, but it is shorter and meets the lower orbital border at 

 about its middle point. 



The basal segments of the second maxillipeds bear very long 

 wooll}^ hairs which entirely conceal the distal segments when the 

 appendage is normally flexed. The outer maxillipeds closely 

 resemble those of S. glohosa, but the merus is without granules 

 and its sculpture is much less conspicuous. 



The chelipeds of the adult male are very much longer than 

 in 5. globosa; in adults they are fully three times the length of the 

 carapace. The edges both 

 of the merus and carpus 

 are crested. The carpus is 

 proportionately much longer 

 than in the allied species, the 

 upper surface being more 

 than two and a . half times 

 as long as broad. The seg-^ Text-iio. r,.Scopimeni pilula. sp. nov. 

 ment is transversely rugu-* chela of male, 



lose above, notsimph' granu- 

 lar. The length of the chela (text-fig. 3) is distinctly greater than 

 that of the carapace and differs in shape from that of 5. globosa ; the 

 greatest height of the palm is about twice its height at the carpal 

 articulation. The length of the dactylus is only about two-thirds 

 that of the upper border of the palm. On both outer and inner 

 sui faces the palm is covered with very fine granules which are 

 arranged round small interspaces so as to give a reticulated ap- 

 pearance. The ridges on the fingers are similar to those of -S. 

 glohosa, but the cluster of enlarged teeth near the middle of the 

 inner margin of the dactylus is much more conspicuous. 



In the female the cheliped is only about twice the length of 

 the carapace ; the carpus is proportionately much shorter and the 

 chela shorter, with fingers longer than the upper border of the palm 

 The limb in consequence bears a close resemblance to that of 

 male 5. globosa, but the borders of the merus and carpus are 

 crested. 



