G 671213 Cypnca. 221 



paring it, as since his death in 1872, his collections have 

 been left packed in the Bedford Pantechnicon, London, and 

 are not in a condition, therefore, to be consulted. 



{c) Mr. Williams also possesses a very ovate form of this 

 species, marked dorsally with leaden blue. Should subse- 

 quent investigations cause this to be entered as a good 

 variety, I would suggest the name van C. passerina {cf. 

 Sowb., Thes. Conch., f 534). 



id) abcrra7ts (Ancey). I do not know this form. 



C. capensis (Gray); cf. Reeve. Conch. Icon., pi. xvii., 

 f %6. Sowb.jT.C, pi. xxix., f 306, 307, 308 ^ This shell, with 

 C. Adamsonii (Gray), were originally made sole types of the 

 genus CyprcBoinila, the surface being ribbed transversely. 

 Liipoiiia (Gray) was characterised by the pyriform shape, 

 smooth, polished, spire concealed and depressed, inner lip 

 plaited-toothed, outer inflexed and crenate. Type, L. Algo- 

 ensis (Gray); cf. Sowb., Thes., pi. xxix., f 311, 312. 



As announced previously in this paper, I recently 

 obtained a specimen of a very extraordinary shell from Port 

 Elizabeth, S. Africa, which appears to unite these two forms, 

 types of two different genera of Gray, in its own person. 

 The following is the description : — 



C. amphithales (sp. nov.), (fig. 19).^^ C. testa rotundato- 

 pyriformi, subumbilicata, stramineo-alba, lateribus brunneis 

 maculis conspersis, latere dextro extremitatibusque ambabus 

 anguste marginatis, apertura angustiore quam in C. algoensi 

 latiore quam in C. Capensi, dorso omnino laevi, brunnea 

 centrali macula decorato, basi transversim liristriata, labio 

 •dentibus octodecim, quasi liri-duplicatis, columellaribus ut 

 in C. capensi. Long, i in. Hab., Port Elizabeth. 



" The annexed plate (fig. 20) shows perhaps the finest specimen known of 

 C. capensis (Gray), which is in my collection. The dorsal blotch is of a fine rich 

 brown, and the transverse lirse unusually clear and sharply cut. 



^ The specific name, aupi^aX-m, blooviins;^ out on both sides, was suggested 

 by the ramifications presented on the one hand towards Cypr3eovula, and on the 

 other towards Luponia. 



