BY F. E. GRANT AND ALLAN E. McCULLOCH. 17 



three succeeding legs, and by the surface of the carapace being 

 perfectly smooth below the scant pubescence. It has been 

 recorded by Haswell as P. cursor, but a reference to his speci- 

 mens does not, in our opinion, substantiate this identification. 

 One of the specimens mentioned by Caiman is no doubt properly 

 referable to our species, but his other specimens and those of the 

 " Alert "* perhaps represent the true P. cursor A. M. Edw. 



PlLUMNUS SEMILANATUS Miers. 



1884. Miers, Zool. H.M.S. "Alert," p.222, pl.xxii. fig.B. 



Port Curtis; a good series dredged in seven fathoms. 



The colour of this species in life is a bright red, with long 

 brown hairs. The lower part of the external surface of the 

 hands is white. 



Actumnus tomentosus Dana. 



1852. Dana, U. S. Explor. Exped. Crust, i. p.243, pl.xiv. figs 2a-c. 

 1898. Alcock, Journ. Asiatic Soc. Bengal, lxvii. (2) p 202. 



Off Mast Head Island; dredged in 17 fathoms. 



Miersf has united this species with A. setifer De Haan, but 

 Alcock (loc. cit.) is not in agreement with this. The specimens 

 collected by us clearly display the specific differences pointed out 

 by the latter author. 



Actumnus setifer (De Haan). 



1851. Pilumnus setifer De Haan, Faun. Japon. Crust, p. 50, pl.iii. 



fig.3. 

 1898. Alcock, Journ. Asiatic Soc. Bengal, lxvii. (2) p. 202. 



Three specimens dredged off Mast Head Island in 17-20fathoms. 



Actumnus nudus A.M. Edw. 



1867. A. Milne Edwards, Ann. Soc. Entom. France, (4)vii. p.265. 



1888. de Man, Journ. Linn. Soc. Lond. Zool. xxii. p.49, pl.ii. 



figs.2-3. 



Two specimens (malesj dredged in Port Curtis are referred 



here from their general agreement with the figure and descrip- 



* Miers, Zool. H.M.S. " Alert,'' - p.223, 1884. 

 t Zool. H.M.S. "Alert," p. 225. 



