153 



Var rosea. JR.c. vt supra sed rosea tincta. 



Shell cylinclrically elongate, pupreforiu, sub-turretted, tumid 

 in the middle, smooth, opaque, olive, apex obtuse, livid ; 

 ■whorls 6, convex, finely striate lengthwise, last whorl pro- 

 duced ; suture margined with a white line, aperture white, 

 entire, produced, everted ; lip reflected and adhering, base 

 coDvex, Long Bav, Eev. H. D. Atkinson ; Blackman's Bay, 

 W. F. Pctterd. 



There is a rose coloured variety of this shell. 



No. 61. RissoA (setia) sienn.t:. n.s. R.t. turhinato-conica, subum- 

 bilicata, opaca, sordida, co7-rosa, vel epidermide induta, fiimoso cornea ; 

 anfr. 5, convexis, striatis (?) apertura, integra, semilunari, labro acuta, 

 labio rejlexo. Long. 4, lat. 3. 



Shell turbiuately conical, suLumbilicate, opaque, sordid, 

 corroded or clothed with an epidermis, smoky horn color ; 

 whorls 5, convex, striate (?), aperture entire, semilunar, outer 

 lip acute, iuuer lip reflected. North Coast, W. F. Petterd. 



No. 62. RissoA MELANURA. U.S. R.t. turbinata, conoidea, solida, 

 atra sed translucente vel eetate intus alba, Icevi, nitente ; anfr. 5, vix 

 convexis, sutura impressa ; ap)ertura antice producta, rotundata, simplici, 

 basi convexa, obtuse angulata. Long. 2, lat. 1 mil. 



Shell turbinate, conoid, solid, blackish but translucent, or 

 white within when old, smooth, shining ; whorls 6, scarcely 

 convex, suture impressed, aperture anteriorly produced, 

 rounded, simple, base convex, obtusely angulate. Blackman's 

 Bay, W. F. Petterd. 



No. 63, RissoA (cingula) atkinsoni. n.s. R.t. mimtta, turbinalo- 

 conoidea, j^olita, translucida, pallide cornea, obscure fusco bifasciata, 

 columella nigra, apice minutissima, turbinata, subvert icaliter sito, (scepius 

 decollato) ; anfr. 5, (apice excluso) rotundfdis ; sutura sat impressa; 

 apertura quam spira breviore, ovata, antice producta ; labro tentd, acuta; 

 labia rejlexo, umbilico simulante. Long. vix. 1, lat. | ? 



Shell minute, turbinately conical, polished, translucent, pale 

 horn color, obscui-ely bifascate with dusky brown, and with a 

 black columella, apex most minute, turbinate and subvertical 

 (more often decollate), whorls 5, exclusive of the apex, 

 rounded; suture well impressed, aperture shorter than the spire, 

 ovate, produced anteriorly, outer lip thin, acute, inner lip re- 

 flected into a false umbilicus. Long Bay, Eev. H. D. Atkin- 

 son. 



No. 64. RissoA ANGELi. U.S. R.t. minuta, umbilicata, turbinato- 

 conoidea, ienui, lutea, pellucida, undique spiraliter tenuiter et regulariter 

 lirata, et obsolete regulariter oblique distante costata ; costis angustis, ad 

 peripheriam ult. anfr. desinentibus ; liris .siqwa castas transeuntibus ; anfr. 

 5, convexis, superne coranatis ; sutura sat impiressa ; apertura rot^indata, 

 labro crassiusculo ; labio erecto, antice incrassata, retro ad umbilic. canal- 

 iculate. Long. U, lat. § mil. 



Shell minute, umbilicate, turbinately conical, thin, yellow, 

 pellucid, regularly spirally lirate all over, and obsoletely, 



