294 MR. E. A. SMITH ON THE [-^pr- '> 



Turbo (Collonia) rubricinctus, Mighels, var. 



Turbo rubricinctus, Mighels, Proc. Bost. Soc. Nat. Hist. 1845, 

 vol. ii. p. 22. 



Leptothyra rnhrHineata, Garrett; Martens, Donum Bismarki- 

 anum, p. 48, pi. ii. fig. 15. 



Turbo {Collonia) rubricinctus, Sowerby, Thes. Conch, vol. v. 

 p. 212, pi. 13. fig. 157. 



Collonia rubrilineata. Pease, MS., Sowerby, /. c. 



Collonia mtdtistriata, Pease, MS., Sowerby, /. c. 



Hab. Sandwich Islands. 



None of the specimens from the Sandwich Islands, which I have 

 seen, appear to he cpiite as large as those from St. Helena. The 

 former have a rosv apex to the spire, whilst in the latter it is pale. 

 Dr. von ^lartens (Don. Bisni. p. 4S) considers this species the same 

 as Collonia verruca, Gonld. The difference in size and colour at 

 once distinsuishes them. Some of the St. Helena specimens are 

 coloured like the type-forms, whilst others are reddisli brown, with 

 a few pale interruptions on the spiral ridges. 



Turbo (Collonia) admissus. (Plate XXII. fig. 4.) 

 Testa minuta, anguste umhilicata, conico-glohosa, alba, radiatim 

 riifo-fusco lineata vel flanunulatn, punctis rtrfls minutis 

 tessellata ; anfractus 5, superne cleclives, dein angulati, ad 

 angulum carinati, liris tenuibus panels cincti, ultimus infra 

 medium siihangiilatys, carina circa iimbilicum instructus ; 

 apertiira siihrotiindata, longit. totius i adwquans ; columella 

 arcnata, alba, leviter rejiexa. 

 Longit. 2k millim., diam. maj. 2. 



The generic position of this pretty minute species is at present 

 somewhat uncertain, as the operculum is unknown. On account of 

 its small size and non-nacreous interior, I believe it to belong to 

 Collonia. One specimen is of a pinkish tint, and all show a more 

 or less distinct darkish zone on the lower surface of the body-whorl. 

 The minute dots fall upon the fine spiral lirae. 



Phasianella tessellata, C. B. Adams. 



Phasionella tessellata, C. B. Adams, Contrib. Conch, p. (i7. 



Hah. Jamaica. 



The coloration of this species is variable, but the "fine, rather 

 distant, parallel, spiral lines of brown, which descend more rapidly 

 than the whorls," appear to be quite constant. In young fresh 

 specimens more or less spiral striation is discernible. 



LioTiA arenula. (Plate XXIV. fig. 6.) 



Testa minuta, depresse glolosa, avgiiste umhilicata, alba; an- 

 fractus 3-34, superne suhplani, in medio rotunde angulati, 

 microscopice spiraliter slriati, radiatim plicati, transversim- 

 que lirati, ultimus carinis vel liris spiralilus sex, h'risgne 

 ohliquis nvmerosis cancellatus ; sutura profunda, canalicu- 



