O PSEUDOSUBULINA. 



W. Guatemala: Duenas, near Antigua, 5000 ft. elevation. 

 (Champion). 



P. mitescens MARTS., Biologia p. 304, pi. 17, f. 18. (April, 

 1898). 



"Intermediate between P. fortis and P. lirifera in the 

 sculpture and the flatness of the costee resembling the latter, 

 and in the shape of the aperture the former; costas stronger 

 on the upper whorls and becoming very feeble in the lower 

 parts of the last three whorls, this character being quite pecu- 

 liar to the species." (v. Mts.). 



10. P. SALVINI Martens. Vol. XVIII, pi. 39, fig. 38. 



Shell subulate-turrite, rimate, perpendicularly closely 

 striatulate, glossy, whitish. Whorls S 1 /^, a little convex, the 

 suture rather deep ; first whorl subglobose, papillifo'rm, rather 

 large, the rest regularly increasing, the last whorl rapidly nar- 

 rowing at base. Aperture subvertical, trapezoidal, outer mar- 

 gin subrectilinear, basal margin narrowly rounded, colu- 

 mella.r margin oblique, protuberant in the middle, obliquely 

 subtruncate at the base. Length 10, diam. 2.5, aperture 

 1.66x1.33 mm. (Marts.) 



N. Guatemala: Vera Paz (Salvin). 



Achatina trypanodes Pfr., TRISTRAM, P. Z. S. 1863, p. 411, 

 not of Pfr. Pseudosubulina ( f) salvini MARTENS, Biologia, 

 p. 305, pi. 17, f. 21 (April, 1898). 



"A comparison of our figure of this shell, drawn from 

 Salvin 's specimen, with fig. 13 of pi. 5, taken from the type of 

 P. trypanodes (Pfr.), will show the differences between these 

 two forms. It is somewhat strange that this species should 

 not be found amongst the numerous Guatemalan shells de- 

 scribed by French authors, but I cannot identify it with any 

 of those enumerated in Fischer and Crosse's work; the near- 

 est seems to be P. sargi, from which the present species may 

 be known by the less convex whorls, the stronger sculpture, 

 and the different, form of the outline of the columellar mar- 

 gin. The last-mentioned character makes it even doubtful 

 whether this shell belongs really to the genus Pseudosubu- 

 (v.Mts.} 



