STUDIES IN AUSTRALIAN CRUSTACEA — M< CULLOOH. 345 



almost every shell had a colony of Polyzoa growing around its 

 mouth. It is possibly a species of Cellepora, and the fact that 

 it is the same on all leaves little doubt that the association of 

 the two animals is not accidental. Similar growths occurred on 

 tho shells of specimens from Wreck Bay, New South Wales, 20 

 fathoms (Coll. C. Uedley). 



Paguristes acigulus, Grant. 



Paguristes aciculns, Grant, Proc. Linn. Soc. N". S. Wales, xxx., 

 1905, p. 319, pi. xi., figs. 3, 3a. 



Having re-examined the type of P. aciculns I find that 

 several important characters have not been quite correctly de- 

 scribed by Grant. He also makes no mention of a row of 

 minute spinules on the raised margin behind the anterior con- 

 striction on the arms of the chelipeds. The merus joints of the 

 anterior ambulatory legs have spines along their lower margins ; 

 they are described as being without spines. The dactyli also 

 have a row of very fine spinules along their supero-internal 

 angles, which, however, are not easily distinguished among the 

 long hairs. The armature of the second ambulatory legs is not 

 nearly so strong as that of the first. 



In the figure the legs are drawn as viewed obliquely from 

 above, so that the joints appear more slender than they really 

 are. The antennal peduncles are too long, they being slightly 

 shorter instead of longer than the eye-stalks. 



The following is a key to the Australian species of Paguristes 

 represented in the Australian Museum : — 



a. Left cheliped much larger than the right. 



b. Hands and fingers with rows of large compound 



tubercles, interspaces smooth tuberculatus. 



bb. Hands and fingers closely covered with very small 

 granules frontalis. 



aa. Chelipeds sub-equal. 



c. Dactyli of legs stout, their anterior faces and those of 



the propodi with squamiform tubercles having 

 hairy edges. 



d, Chelipeds and legs with long felted hair which hides 

 the characters beneath it ; upper face of hand 

 with squamiform tubercles. 



