SALASIELLA. 



171 



Fig. 1. Salasiella subcylindrica. Diente, near Monterey. 

 Figs. 2, 3. Salasiella perpusilla. Diente, near Monterey. 

 Fig. 4, 5. Salasiella modesta. Orizaba. 

 Fig. 6. Salasiella minima. Orizaba. 



(All figures drawn with camera lucida to the same scale.) 



1. S. MARGARITACEA (Pfeiffer). PL 28, fig. 61. 



Shell oblong, thin, smoothish, very lightly and irregularly 

 plicatulate under the lens, pellucid, glossy, transparent-yel- 

 lowish. Spire short, conic, rather acute ; suture somewhat 

 channelled, margined. Whorls 5%, a little convex, the last 

 more than half the total length, slightly tapering basally. 

 Columella slightly arcuate, abruptly truncate. Aperture ver- 

 tical, acurninate-semioval ; peristome simple, the right margin 

 slightly arching forward. Length 9.5, diam. 3.33, aperture 

 7x2 mm. 



Mexico: Cordova, State of Vera Cruz (Salle, in Cuming 

 collection). 



Achatina margaritacea PFB., P. Z. S. 1856, p. 321. Olea- 

 cina m., PFR., Monogr., iv, p. 636. Salasiella m., Pfr., MAR- 

 TENS, Biologia, p. 81, pi. 5, f. 8. 



"Very distinct from its coniform shape, thus resembling 

 many Streptostyla", but the conformation of the columella is 

 that of Glandina. The figure here given is drawn from a 

 specimen in the late Mr. Paetel's collection, of somewhat 

 smaller size than Pfeiffer 's example" (v. Marts.}. 



