252 



circularibus, confertis, ad septenis perviis, extrorsum canalicula- 

 tis ; intiis undulosa, nitida, argentea. Long. If, lat. f poll. 

 With New Holland shells. 



About the size and form of H. stomaticB-formis, Reeve, but 

 distinguished from all others by its crowded angular ripples, 

 arranged somewhat like the colors on H. ziczac. No shell ap- 

 proaches it in this respect except the very young of H. australis. 



ScALARiA GRACiLENTA. Testa miuuta, gracilis, elongato-tur- 

 rita, alba, costis longitudinalibus tenuibus ad 16 clathrata, spirali- 

 ter inter costas striata, imperforata : spira anfr. 9 cylindraceis, 

 contiguis ; sutura profunda: apertura circularis, ab anfractu 

 penultimo baud sejuncta ; labro continuo, reflexo, postice et ad 

 columellse basim dilatato. Long. ^, lat. -^^ poll. Hob. Mangsi 

 Island. 



One of the most slender and delicate species of the genus, re- 

 sembling the figure of S. gracilis, Sowb., but agreeing still more, 

 in its characters, with his S. turricula. 



ScALARiA TEXTURATA. Tcsta parva, tenuis, elongato-turrita, 

 rubescens, sub-perforata : spira anfr. 8 rotundatis, fere solutis, 

 costis 9 albidis elevatis reflexis superne spinosis clathrata, et 

 striolis inter costas confertissime texturata : apertura circularis. 

 Lat. -^, alt. -^ poll. Hah. 



A very pretty, slender species, and well characterized by the 

 numerous striae between the ribs, forming a delicate net-work. 

 It is allied to S. turricula^ Sowb., which has only revolving lines, 

 is less conical, and the whorls less rounded. 



LiTTORiNA ciNCTA. Testa parva, rudis, conico-globosa, fuli- 

 ginosa, interdum albido-zonata, costulis elevatis rotundatis ordi- 

 natis cincta, interspatiis excavatis et minutissime decussatim 

 striatis : spira conica, acuta; anfr. 5 ventricosis, ultimo ampul- 

 laceo ; sutura bene impressa : apertura ampla, sub-circularis ; 

 labro acuto, fusco-marginato ; columella alba, planulata, ad basim 

 expansa. Axis |, diam. J- poll. Hah. Puget Sound. 



More globular and proportionally shorter than any described 

 species. Generally resembles L. striata, btit is still less elonga- 

 ted, less solid, and has the ribs larger and less numerous, and its 

 color more dusky. It may also be compared with L. hreviculus. 



