173 



Notes on South Australian Decapod Crustacea 



PART V. 



By W. H. Baker. 



[Read July 2, 1907.] 



Plates XXIII. to XXV. 



The species here dealt with are of a very varied character, 

 and several of them are submitted with a good deal of diffi- 

 dence. The two species of Fiit7iottres are established chiefly 

 on the fact of the absence of the dactylus of the external 

 maxillijDeds. I have not attempted to figure F. suhylohoHd, on 

 account of its untoward shape ; it would appear to be deeper 

 sunken in parasitism than other members of the same 

 genus. 



With regard to the two species of rrocessa. while they 

 are sufficiently distinguished from each other, I must confess 

 that I have not been able to compare them with any foreign 

 species. 



Very few species of the actively-swimming Crustacea are 

 known from the southern coast of Australia, there not having 

 been any systematic attempts to collect them. We are look- 

 ing forward to results from, the efforts which are about to be 

 made by the Federal Government in the direction of trawling. 



I wish to express my sorrow at the death of Mr. F. E. 

 Grant, F.L.S., of Sydney, which took place in January last. 

 I owe him for many good services, especially in relation to 

 references I could not make myself. 



Order BRACHYURA. 

 Tribe CYCLOMETOPA. 



Family Xanthid.e. 



Sub-Family Xanthine. 



Genus Cyclojcanthus ( f ), A. Milne Edw. 



Cycloxanthus (?) carinatus, n. sp. PI. xxiii., tii;. 1. 



The body is almost totally glabrous. 



The carapace is considerably broader than long, not very 

 convex, the surface is uneven, the regions very indistinctly 

 indicated, covered with numerous minute punctations amongst 

 which larger pits are scattered, which are more numerous on 

 the antero-lateral margins and the front. 



The front is more than one-third the width of the cara- 

 pace ; it is strongly arched, lamellar, cristate, and projects 



