BY C. HEDLEY. 733 



obese shell. A species from India, RicinnJa xuthedra Melvill,* 

 is also somewhat like, but has a minute scaly sculpture wanting 

 in the Australian species, and is, besides, larger, comparatively 

 broader and blunter at the ends. Closest of all to our species is 

 Tritonidea curtisiana Smith, t but that is variegated instead of 

 monochrome, smaller, less pointed in front, has the ribs closer 

 and more prominent, and the denticles in the aperture are 

 differently arranged. In the Australian Museum collection, 

 there is a specimen of E. curtisiana from W. Australia. 



Hab. — The specimen described was dredged by Mr. J. Brazier, 

 in 30 fathoms, off' Darnley Island, Torres Straits. 



Caduciper dkcapitata Reeve. 



Triton decapitatus Reeve, Conch. Icon., ii., 1844, PI. xviii., f.85; 

 T. (Epidromus) decapitatus Melvill & Standeu, Journ. of Conch., 

 viii., 1895, p.UO. 



At the Palm Islands, Queensland, I found two specimens of 

 this species, which is unrecorded for Australia. But in my 

 Queensland list, these were erroneously noted as Colubraria 

 tessellata Reeve. | 



To Colubraria, however, I would now refer both Fisania 

 reticulata A. Adams, and Fisania schoutanica May. 



Maculotriton gracilis Sowerby. 

 (Plate Ixxxiv., fig.79.) 



Phos gracilis Sowerby, Thes. Conch., iii., 1859, p. 91, PI. 222, 

 fig.33. 



This rare species escaped the attention of Angas when he col- 

 lected and catalogued the mollusca of Sydney Harbour. It is 

 related to Cantharus unicolor Angas, and Tritonidea australis 

 Pease. M. yracilis is 12 mm. long, more cylindrical in form, and 

 has finer, closer ribs than its associates. Also J/, gracilis is 

 uniform cinnamon-brown, M. unicolor is straw-yellow, either 

 monochrome or with rusty blotches below the suture, and M. 

 australis is chequered buff and chocolate. It is now proposed to 



•Melvill, Proc. Manchester Lit. Phil. Soc.,(4), vii., 1893, p.55, Pl.t., f.6. 



t Smith, Zool. Coll. Alert, 1881, p. 47, PI. v., f.E. 



iHedley, Rep. Austr. Assoc. Adv. !Sci., xii., 1910, p. 367. 



