206 MOLLUSCA. 
bling the figure of S. gracilis, Sowb., but agreeing still more, in its 
characters, with S. turricula, Sowb. 
Figure 245, front view of the shell, magnified ; 245 a, natural size ; 
245 b, view at the suture, enlarged. 
ScaLaRia TEXTURATA (Gould). 
Testa parva, tenuis, elongato-turrita, pubescens, subperforata : spira an- 
fractibus rotundatis octo feré solutis, costis novem allidis, elevatrs, 
reflexis, superne spinosis clathrata, et striols inter costas confertis- 
simé texturata: apertura circularts. 
Scalaria texturata, GouLp ; Proceed. Boston Soc. Nat. Hist., 11. 252. 
December 1847. 
Syett small, slender and turreted, rather thin, and of a pale flesh- 
colour. It is barred with nine series of elevated, reflexed, whitish 
ribs, which, on the larger whorls, are armed posteriorly near the 
suture, with sharp spines. Between the ribs the space is finely sculp- 
tured with minute, revolving lines. Whorls eight, cylindrical, and 
nearly separated from each other. Aperture circular. ‘The umbilicus, 
if existing, is very small, and obscured by the numerous ribs con- 
verging there. 
Length one-third of an inch ; breadth one-fifth of an inch. 
Habitat unknown. 
A very pretty, slender species, and well characterized by the 
numerous striae between the ribs, forming a delicate network. It is 
allied to S. turricula, Sowb., which has only revolving lines, is less 
conical, and its whorls are less rounded. 
Figure 244, view of the shell in front, magnified ; 244 a, junction of 
whorls at the suture, enlarged ; 244 0, natural size. 
ScaLARIA AUSTRALIS (LamaRcK), Anim. sans Vert., ix. 76. Sow- 
