CETTSTACBA. 623 



Island, or He des Eoches, 13-20 fms. (No. 183), and a small male 

 from Darros Island, 22 fms. (No. 233). 



Dana's types were from the Hawaiian Islands ; henoe this species, 

 which, was previously unrepresented in the Museum collection, is 

 evidently distributed throughout the Oriental Eegion. 



It appears to be very distinctly characterized by the slender and 

 very divaricate rostral horns, and the strong spines of the ptery- 

 gostomian regions and basal antennal joints. In the specimens 

 before me, the carapace beneath the pubescence is obviously tuber- 

 culated, and it is not so broadly ovate as in Dana's figure ; as in 

 that figure, there are small lateral epibranchial and intestinal 

 spines. 



There is, I think, no sufficient reason for separating this forin, 

 even as a subgenus, from Ohorilia. 



In a female from African or Eagle Islands, 10 fms. (No. 184), the 

 carapace is still narrower, less distinctly tuberoulated, and has 

 scarcely any trace of the epibranchial and no intestinal spine ; the 

 spines of the rostrum are longer, exceeding the carapace in length ; 

 the spines of the basal antennal joints and pterygosfcomian regions 

 shorter (the latter subequal). This I wiU designate L. ovata, var, 

 tenuirostris. 



9. Naxia (Naxioides) petersii, Eilgendorf. 



A young specimen is in the collection, from Marie-Louise Island, 

 17 fms. (No. 186). ' 



Two specimens of this species are in the British-Museum collection 

 without special locality {H.M.S. ' Samarang '). Dr. HQgendorf's 

 specimen was from Mozambique. 



As I have elsewhere noted *, this species is very probably identical 

 with the earlier described N. hirta, A. M.-Edwards, from Zanzibar. 



10. Eurynome stimpsonii. (Plate XLVII. fig. A.) 



The carapace is of a rather narrow-pyriform shape ; the spines of 

 the rostrum rather short, very slightly divergent, and shaped nearly 

 as in Eurynome aspera; there are usually two small spinules on 

 the front of the gastric region, and always a strong spine on each 

 branchial region. The surface of the carapace has besides several 

 broadly dilated, laminate, flattened expansions, which, when ex- 

 amined with a lens of sufficient power, are. seen to be themselves 

 granulated: — one (longitudinal) on the gastric, one (posteriorly 

 emarginate, and bearing a strong dorsal spine) on the cardiac, one 

 (transverse) on the intestinal, one on the hepatic, and four on the 

 branchial region grouped around the branchial spine ; also one on 

 the posterior margin of the carapace ; their form will be best under- 

 stood by a reference to the figure. The postooular tooth or lobe is 

 prominent and triangulate ; there is a small ridge or prominence on 



* Proo. ZooLSoo. 1882, p. 341. 



