718 STUDIES ON AUSTRALIAN MOLLUSCA, Xli., 



Linn., as the type. Vignal* suggests that if Bruguiere had 

 indicated a type, that naturally it would have been C. adansoni. 



Under Cerithium, Tryon's Manual includes the following Aus- 

 tralian species now assigned to Clava—aspera Linn., hituhercu- 

 lata Sow evhy ^ /asciata Brug., pulchra A. Adams, sinensis Gmelin, 

 and vertaga Linn.; also leevis Q. & G., for which the genus 

 Ceratoptilus was framed by Bouvier in 1886. The latter, which 

 reaches a length of eight inches, seems the largest living member 

 of the family. Fossil members of Ceratoptilus are C torrii Tate, 

 1899, and C. triserialis Basedow, 1902. 



The novelty may be defined as follows : — 



Shell solid, elongate. Colour white with rusty irregular dots 

 or broken lines. Apex of the spire always eroded, whorls 

 estimated at fourteen. Suture undulating. Sculpture : pro- 

 minent pointed tubercles set on the periphery at about eight to 

 a whorl, on the base are two (rarely one) spiral rows of small 

 tubercles, while small spiral threads overrun the whorls generally. 

 There is an incipient varix, two-thirds of a whorl behind the 

 mouth Last whorl slightly ascending at the aperture, w^hich is 

 a little oblique, externally reflected, with a gutter at the pos- 

 terior corner. Inner lip well developed, canal short and broad. 

 Length, 32; breadth, 12 mm. 



Hah. — ^The individual figured was collected by myself at Green 

 Island, near Cairns. Dr. A. E. Finckh took the species at Lizard 

 Island, and a small variety only 23 mm. long, occurred to me at 

 Murray Island, Torres Straits. 



BiTTiuM GRANARiUM Kicncr. 

 (Plate Ixxvii., fig. 6.) 



Cerithium granarium Kiener, Coq. Viv., 1842, p. 72, P1.19, 

 fig.5; C. lacertinum Gould, Proc. Bost. Soc. Nat. Hist., vi., 1861, 

 p.386; Id., Sowerby, Conch. Icon., xv., 1865, P1.18, fig.129. 



Gould's species is usually accepted as identical with that of 

 Kiener; this valuation is supported by the present figure of the 

 type of Gould in the National Museum at ^^^ashington. 



* Vignal, Journ. de Conch., Iviii., 1910, p. 138. 



