740 STUDIES ON AUSTRALIAN MOLLUSCA, xii., 



a mucronate protoconcb. Colour: on a cream ground, orange- 

 brown is irregularly disposed, with a tendency to colour the ribs 

 but not the interstices, to leave an uncoloured spot on the shoulder 

 of the rib, and to cover the back of the last whorl in torn con- 

 fused meshes. The interior of the aperture is faint lilac. Sculp- 

 ture : the six adult whorls carry narrow, distant, radial ribs at 

 about twelve to a whorl, discontinuous from Avhorl to whorl, 

 projecting at the shoulder, and vanishing on the basf^. Behind 

 the aperture, five ribs disappear progressively, from the base 

 upwards, leaving a tubercle on the shoulder to represent the last. 

 The general surface is smooth and gloss\'. Ten spiral furrows 

 are engraved on the base and snout. Aperture rather broad, 

 within the outer lip are eight or ten entering bars increasing 

 posteriorly in size. Inner lip continuing as a free edge, slightly 

 corrugated by contact with the revolving lines of the snout. 

 Length, 15; breadtli, 7 mm. 



Huh. — Seven specimens, collected by self on the ocean-beach 

 near Cooktown, Queensland. 



This species seems related to P. zebra Woods,* than which it 

 is larger and differently coloured. 



Zafra darwini Angas. 

 (Plate Ixxxiii., fig. 74.) 



Columhellalentigiiiosa Reeve, Conch. Icon.,xi., 1859, Pl.xxxvii., 

 fig.240; C. darivini Angas, Proc. Zool. Soc, 1877, p. 181. 



A group of Australian brown Zafra has received ill-usage in 

 literature, and is now in a confused state. To begin, Reeve, in 

 1859, figured a shell collected by Strange in Moreton Bay, 

 Queensland, under the name of Columhella lentiginosa Hinds. 

 But the shell described under that name by Dr. Hinds, f from 

 Costa Rica, is so unlike the Queensland species, that it is difficult 

 to understand how the mistake occurred. Then, as a corollary 

 to his first error, Reeve redescribed the genuine C . lentiginosa as 

 Columhella guatemalensis .% 



~* Woods, Index Test., 1828, p. 13, Suppl., Pi. 4, fig. 30; 8mith, Proc. 

 Zool. Soc, 1891, p.406. 



t Hinds, Zool. Voy. Sulphur, ii., 1844, p.39, Pl.lO, figs. 21, 22. 



t Reeve, Conch. Icon., xi., 1859, Colunibella, PI. xxxi., fig. 198. 



