82 PUPILLA. 



me many years ago by Dr. Leach, from Battersea, under the 

 title of Pupilla marginata." 



PUPILLA OERSTEDH (Morch). 



Shell umbilicate, cylindrie, obliquely striatulate, glossy, 

 brown. Whorls 6i/^, convex, with impressed suture, the last 

 equal to one-fourth the length. Peristome thickened subre- 

 flected. Aperture triangular, the columella wide, entering, 

 provided with a punctiform white tooth; parietal tooth sub- 

 compressed; lips joined by a funicular callus. Length 3.5 

 mm., diam. 2 mm. {Moerch). 



Nicaragua (A. S. Oersted). 



Pupa (Pupilla) oerstedii Moerch, Malak. Bl. VI, 1859, p. 

 111.— Pfr., Monogr. VI, p. 306. 



This species comes from further south than any other 

 American Pupilla, if it belongs to that genus. It is known 

 by the original account only. Moerch notes that ' ' The outer 

 lip has two or three notches which give the aperture an 

 angular appearance. The parietal tooth is somewhat removed 

 from the curving lip-margin, and equally removed from the 

 funicular callus. Epidermis is weathered on the oldest whorls. 

 The habitus and color are quite as in our European species, 

 such as Pupa dolium, muscorum etc." 



Pupilla sterkl\na (Pilsbry). Vol. 26, p. 156. 



Add the locality: San Martin Island, Lower California (G. 

 D. Hanna). A few beautiful albino shells were among many 

 of the normal brown color {Pilshry, Proe. Cal. Acad. Sci. (4), 

 vol. 16, 1927, p. 186). 



Pupilla goniodon Pilsbry. PL 15, fig. 12. 



The shell resembles P. sterkiana of the Lower Californian 

 mainland in shape and sculpture. It is thin, cylindrie, with 

 blunt, rounded ends, cinnamon-colored, with sculpture of 

 strongly retractive, widely spaced riblets, which are more or 

 less irregular or in places dislocated, sometimes with short, 

 twig-like branches ; they are about one-fourth as wide as their 

 intervals or less. The initial 11/2 wliorls have irregularly an- 



