127 



Diagnosis. — Its special characters are its blunt proto- 

 conch with two carinae, and the third spiral arising behind 

 the others; in most Triplwra it arises between them as in 

 T. atigasi, tasmanica, cana, etc. 



Type in my collection. 



Pyrene versicolor, Sowerby. 



Columbella versicolor, Sowerby, Proc. Zool. Soc, London, 

 183:4, p. 119. Type locality — Annaa, Philippine Islands (Chiming). 

 Sowerby, Thes. Conch., vol. i., 1857, p. 117, sp. 18, pi. xxxvii., 

 figs. 41-46; Reeve, Conch. Icon., 1858, pi. xi., figs. 51 a and b ; 

 Angas, Proc. Zool. Soc, London, 1867, p, 194, New South Wales; 

 Tryon, Man. Conch., vol. v., 1883, p. 110, pi. xlv., figs. 84-96; 

 (Pyrene) Hedley, Australasian Association for the Advancement 

 of Science, 1909, Queensland. 



Columbella scripta, Lamarck, Hist. Nat. Anim., sans Vert., 

 •ed. 2, vol. x., p. 270 ( non Linn.). 



Columbella bidentata, Menke, Moll. Nov. Holl., 1843, p. 23, 

 No. 108; Sowerby., Thes. Conch., vol., i., 1847, p. 118, ep. 21, 

 pi. xxxvii., figs. . 53 and 54. 



Columbella arenosa, Kiener; coronata, Duclos ; athadona, 

 Duclos; tigrina, Duclos; aspersa, Sowerby; nivosa, Reeve; per- 

 tusa, Reeve, are synonyms, according to Tryon (loc. cii.'J. 



This species, a tropical form, appears to come some dis- 

 tance down the Eastern coast of Australia, but not "to reach 

 Victoria or Tasmania. It is found along the Western coast 

 of Australia, and at Albany on the southern coast. I have a 

 recent shell from St. Francis Island, and Dr. Torr one from 

 Wool Bay. 



At Murat Bay, in a subfossil form in a kind of con- 

 glomerate on the beach, they are found in great numbers 

 bearing their colour markings with Mejeagrina fimbriata, 

 Dunker, and Barbatia trapezia, Deshayes, neither of which 

 is found in our waters alive, and in the same condition they 

 occur along the South Australian coastline to the east. 



Pyrene varians, Sowerby. 



Columbella varians, Sowerby, Proc. Zool. Soc, London. 1832, 

 p. 118. Type locality — Gallapagos Island (Cuming;. Thes. Conch., 

 1857, vol. 1., p. 117, pi. xxxvii., ties. 47 to 50; Reeve, Conch. 

 Icon., 1858, pi. xvii., sp. 91; Tryon, Man. Conch., vol. v., 1883, 

 p. 110, pi. xlv., figs. 97 and 2, and pi. xlvi., figs. 3, 5, and 6, also 

 "Philippines and New Guinea" : Hedley, Australasian Association 

 for the Advancement of Science, Brisbane, 1909, p. 368, recorded 

 for Queensland. 



In Tate's cabinet is an example from Wauralti, in Spen- 

 cer Gulf, named and its locality certified by himself. I have 

 not yet taken it on the South Australian coast, nor has any 

 other collector to my knowledge. 



