BY F. E. GRANT. 323 



Spence Bate says of his specimens that the antennse bear 

 " five or six teeth of equal size distantly separated from each 

 other on the distal margin of the anterior plate." In one of the 

 specimens under consideration each distal margin carries seven 

 teeth, while on the other specimen there are seven teeth on one 

 plate and six on the other. In both cases the central teeth are 

 the largest, and the series diminishes regularly both posteriorly 

 and anteriorly; the teeth are also confluent at their bases and 

 not "distantly separated." 



The difference also between the first of the large teeth on the 

 margin of the carapace posterior to the deep branchial incision 

 and those immediately following it is not so marked as in the 

 type figured in the " Challenger." 



Under the circumstances our specimens have appeared to me 

 deserving of varietal rank. 



It will be noted that none of the species of Decapods, said to 

 have been taken by the "Challenger" Expedition in their Station 

 known as 164b at a depth of 410 fathoms east of Sydney, 

 occurred in our hauls. Doubt has already been thrown by Mr. 

 Hedley from conchological data on the correctness of ascribing 

 these specimens of the " Challenger " to this Station.* 



The following are the species said to have been taken — 

 Lispognathus Thomsoni Norman, Uropfychus australis Henderson, 

 JJroplychiis gracilimanus Henderson, Plesionika semilcevis Spence 

 Bate. 



Of these the first mentioned is an Atlantic species, former 

 records being from the Straits of Gibraltar and the Cape of Good 

 Hope. Uroptychus australis was, however, taken also at Stations 

 170 and 171 off the Kermadec Islands, and at Station 194a off 

 Banda. The remaining species have not, so far as I can ascertain, 

 again occurred in literature. From this evidence it would conse- 

 quently rather appear that the product of two different hauls had 

 become mixed. 



* These Proceedings, 1901, p. 22. 



