South African Crustacea. 93 



third maxillipeds have a small exopod, not nearly so long as the 

 antepenultimate joint of the endopod ; but this is not a point of dis- 

 tinction from " Hetairus yaimardii," since that also, as I stated in 

 1893, has the exopod in question, the species properly belonging 

 to Spirontocaris. 



The first peraeopods are moderately robust, the chela nearly as 

 long as the fourth joint, not twice as long as the fifth joint, in this 

 respect differing from S. licrdmani, A. 0. Walker, 1898 ; the fingers 

 are rather less than two-thirds the length of the palm. The second 

 peraeopods are slender, the divisions of the wrists not exactly cor- 

 responding in the pair of limbs, but the proximal first and second 

 jointlets in both are coalesced, so that the wrist is 6-jointed. 

 Here, however, the result is due to the coalescence mentioned, 

 whereas in S. cranchii, according to Mr. Kemp's fig. 8, pi. 18, 

 there is a jointlet missing. Stimpson speaks of the third, fourth, 

 and fifth peraeopods in his species as all slender, which is an 

 epithet not applicable to the third pair in the new species, and not 

 specially appropriate to the fourth or fifth. Walker mentions that 

 the third peraeopods in S. licrdmani have 3 spines on the distal 

 third of the fourth joint. In the new species no such spines were 

 observable. In all three pairs the fifth joint is distally produced 

 over the base of the long sixth, and the short stout finger is fringed 

 with spines on the inner margin, and ends in a short stout unguis 

 with a spine behind it. 



The first pleopods are comparatively short, the second and third 

 much longer, the long second joint being expanded, at first 

 gradually, into a membranaceous wing which aids in securing 

 the very numerous eggs ; far down on the inner rarnus there is 

 a long coupling process with about a dozen minute hooks on the 

 transverse apex. The uropods, which are rather longer than the 

 telson, have the peduncle produced into a sharp point on its 

 outer margin ; the inner ramus, a very elongate oval, is a little 

 shorter and narrower than the outer, which, besides the ordi- 

 nary long plumose setae of its inner and rounded apical 

 border, has the straight outer margin fringed all along with 

 short setae to the distal tooth, this tooth not nearly reaching 

 the apex. 



Total length of the specimen, a female laden with eggs, was 

 14'5 mm., the carapace with rostrum being 4 mm. long, and the 

 pleon to end of telson 1O5 mm. 



Localities. 34 11' S., 18 31' E. ; depth 20 fathoms. A 1297. 

 And off Buffels Bay (False Bay) ; 30 fathoms. No. 116. The 



