MOLLtrSOA. 



505 



91. Trochus (Monodonta) australis, Lamarck. 

 Glorioso Islands, oa tlie reefs. 



92. Trochus (Monodonta) laMo, lAnm. 

 Seyclielles, on the beach. 



93. Cylichna protracta. 



OmU, Proc. Bost. Soc. Nat. Hist. 1859, vol. vii. p. 140 ; Otia, p. 113. 

 Cerf Island, Mascarenes, in 10 fins. ; coast of China (Gould). 



94. Tomatina voluta, Quoy dr Gaimard. 

 Providence Reef, Mascarenes, in 24 fms. 



95. FyramideUa (Lonchaeus) maculosa, Lamarck. 

 Poivre Island, in 20 fms. 



96. Pyramidella (Oheliscus) terehellum, Mailer. 

 African Island. 



97. Pyramidella (Oheliscus) sulcatus. 



Oheliscus sulcatus (JVuttcfU, MS.), A. Adams m Sowerby's Thesaurus, 

 vol. ii. p. 807, pi. 171. fig. 34 ; Sowerhy, Conch. Icon. vol. xv. 

 figs. 12 a, h. 



Providence Eeef, Mascarenes, in 24 fms. 



This species was collected at the Sandwich Islands hy NuttaU, 

 and Tahiti is assigned to it as the locality hy Mr. A. Adams. 



98. Chemnitzia coppingeri. (Plate XLIV. fig. W.) 



Shell elongate, subulate, pink, with large distant white varices. 

 Whorls 18?; the 12 remaining are convex at the sides, separated by 

 a deepish, slightly oblique suture, longitudinally finely ribbed and 

 spirally lirate. Eibs twice as broad as the grooves between them, 

 about 26 on the penultimate whorl, subnodose where they meet the 

 transverse lirae ; these are about 11 in number on the penultimate 

 and about 24 on the last whorl, those on the lower part rather finer 

 than those above. Varices large, almost one on every volution, 

 transversely sulcated. Aperture subquadrate, nearly as wide as 

 long. Columella straight, subtruncate and uniplicate anteriorly. 

 Labrum arcuate, externally variced. Length of twelve remaining 

 whorls 18 miUims., diameter 4^ miUim. 



Providence Reef, Mascarenes, in 24 fms. 



