but downward, by the 6''' somite of the abdomen being not armed with the large spine, 

 characteristic of this species. Relying on the words "carapace carinated" of Bath's translation, 

 we must assume that this is indeed the case in the south-australian Leptoche/a, though in the 

 fisrures the carination is not visible. 



is' 



3. Leptochela sp. 



Stat. 7. March 11. 7°55.5S., 114° 26' E. Reef, i young specimen. 



Stat. 43. April 4 5. Anchorage off Pulu Sarassa, Postilion Islands. Depth up to 36 m. Bottom 



coral. I young specimen. 

 Stat. 181. Sept. 511. Ambon. 54 m. i young specimen. 



These three specimens are all very young, that from Ambon is about i i mm. long, the 

 two others 8 or 9 mm. : they must probably be considered as varieties either of Lept. pui^nax 

 or of Lepi. robusta. In the specimens from the Stations 7 and 43 the outer orbital angle is 

 spiniform, but the spine is smaller than in Lept. ptignax, there is, however, also a short spine 

 at the antero-inferior angle of the carapace. In both the rostrum is slightly upturned and reaches 

 in the specimen from Stat. 7 just beyond the distal extremity of i^' antennular article, in the 

 other almost to that extremity. The two spines on the lower surface of the 6"' somite are 

 implanted more backward than in Lept. piignax and are as long as in young specimens of 

 Lept. robusta from the Stations 37, 41 and 166, reaching to the posterior end of the lower 

 margin ; in both specimens two other somewhat shorter and thinner spinules of equal size are 

 observed on the lateral margin of the 6''' somite, one at the anterior third, the other in the 

 middle. In the young specimen from Ambon the spine at the outer orbital angle has the same 

 size as in Lept. pjignax, the antero-inferior angle of the carapace is rounded, but the spines 

 on the lower side of the 6'*^ somite, though implanted on the same place as in Lept. pugnax, 

 are much shorter, nearly as in Lept. robusta. 



