260 LEPTOTHYRA. 



bands of brown which are rather indistinct ; spire depressed, obtuse ; 

 whorls 4, rounded, distinctly and closely spirally grooved, the um- 

 bilical region smooth [or finely lirate] ; suture scarcely impressed ; 

 umbilicus narrow, deep ; aperture subrotund ; peristome acute, not 

 continuous, the lower lip thickened. (Hutton.) 

 Alt. 21, diara. 3 mill. 



Foveaux Straits. 



Operculum inside as usual in the genus, showing about 6 closely- 

 coiled whorls ; outside subvitreous and translucent, nearly smooth, 

 calcareous, slightly concave in the center. 



It is Cyclostrema flactuata Hutton. 



Separated from L. ktta by the lack of spiral sculj)ture on the 

 operculum and the somewhat smaller size. My figures are from 

 sj^iecimens received from the author. 



L. pusio (Anton) Phil., (1849 ?) PI. 44, fig. 70. 



Shell minute, globose-conoid, narrowly umbilicate, yellowish, 

 maculated and spotted with clear and dark brown flecks ; whorls 

 5, the last with about sixteen, penultimate with six to eight spiral 

 lirse, which are as broad as their interstices; umbilicus with cren- 

 ate margin ; aperture circular, very smooth within. 



Alt. Al, diam. 5 mill. 



Habitat unL-noicn. 



I am unable to satisfactorily identify this form with any other 

 known to me. Its sculpture and smooth aperture separate it from 

 L. keta Montrouzier. 



L. cALiFORxrcA (Troschel) Phil, (1849 ?'). PI. 58, figs. .38, 54. 



Shell small, perforate, globose-conoid, very solid, white, variega- 

 ted with purplish ; whorls 4, the last very closely transversely striate 

 and obsoletely transversely costate ; aperture orbicular; lip inside 

 densely crenulated. (Phi/ipjn.) Alt. 5, diam. 6 mill. 



'' California " (Philippi:) 



This species is apparently very nearly related to the T. sanguin- 

 eus L., but is distinguished by the crowded transverse strise of the 

 upper surface, by the narrowly but conspicuously umbilicate base, 

 ■by the plica^ within the outer lip, and finally by the coloration, 

 which consists of large deep-red maculations above at the suture 

 and in the middle of the lower side, and smaller paler flecks around 

 the umbilicus and at the periphery. I see no tubercle ujion the 

 columella. (Philippi.) 



