99 



ovalis, undulis obliquis angulatis divaricantibus rugata, spiraliter 

 striata, rubida : spira elevata, submediana ; foraminibus parvis, 

 circularibus, confertis, ad septenis perviis, extrarsum canaliculatis ; 

 intus undulosa, nitida, argentea. Long. If; lat. -g- poll. With 

 New Holland shells. 



About the size and form of H. stomatice-formis, Rv., but dis- 

 tinguished by its crowded angular ripples, arranged somewhat 

 like the colors on H. ziczac. No shell approaches it in this re- 

 spect except the very young of H. cmstralis. 



Scalaria gracilenta. T. minuta, gracilis, elongato-turrita, 

 alba, costis longitudinalibus tenuibus ad 16 clathrata, spiraliter inter 

 costas striata, imperforata : spira anfr. 9 cylindraceis, contiguis ; 

 sutura profunda: apertura circularis, ab anfractu penultimo baud 

 sejuncta ; labro continuo, reflexo, postice et ad columellas basim 

 dilatato. Long. ^ ; lat. T ' F poll. Hob. Mangsi Island. 



One of the most delicate and slender 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. T. parva, tenuis, elongato-turrita, 

 l'ubescens, sub-perforata : spira anfr. 8 rotundatis, fere solutis, 

 costis novem albidis elevatis reflexis superne spinosis clathrata, 

 et striolis inter costas confertissime texturata: apertura circularis. 

 Lat. \ ; alt. \ poll. Hob. ? 



A very pretty slender species, and well characterized by the 

 numerous stria? between the ribs forming a delicate network. It 

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

 less conical, and the whorls are less rounded. 



Littorina cincta. T. parva, rudis, eonico-globosa, fuliginosa, 

 interdum albido-zonata, costulis elevatis rotundatis ordinatis cincta, 

 interspatiis excavatis et minutissime decussatim striatis : spira 

 conica, acuta ; anfr. 5 ventricosis, ultimo ampullaceo ; sutura 

 bene impressa : apertura ampla, subcircularis ; labro acuto fusco- 

 marginato ; columella alba, planulata, ad basim expansa. Axis 

 f ; diam. h poll. Hob Puget Sound. 



More globular and proportionally shorter than any described 

 species. Generally resembles L. striata, but is still less elon* 



