150 STREPTOSTYLA. 



15a. S. TUBGIDULA var. GUATEMALENSis C. & F. (According 

 to von Martens, this includes 8. schneideri Strebel, 

 Vol. I, p. 48.) 



16. S. LABIDA (Morelet). PI. 29, fig. 73. 



Shell ovate-conic, rather solid, very minutely striatulate, 

 semidiaphanous, corneous-yellow, striped on the last whorl 

 with some pale greenish streaks. Spire conic, short; suture 

 slightly impressed, margined. Whorls 7, a little convex, the 

 last more than half the length of the shell. Columella cal- 

 lous, twisted, scarcely truncate. Aperture narrow, semioval. 

 Length 22, diam. 10.5 mm. (Morelet). 



Guatemala: Vera Paz (Morelet). 



Glandina labida MORELET, Testae. Noviss., ii, p. 13 (1851). 

 Streptostyla labida Morel., MARTENS, Biologia, p. 96, pi. 5, 

 f. 16. 



"Very near the preceding, but comparatively somewhat 

 shorter and marked with a distinctly impressed line below the 

 suture. Figured from a typical specimen sent to me by M. 

 A. Morelet" (Martens). 



17. S. LURIDA (Shuttl.). Vol. I, p. 45 (includes 8. bocourti 



C. & F., vol. I, p. 46) . 



S. lurida is well distinguished by its deep, channelled 

 suture. A specimen referable to var. major C. & F. before 

 me is pale greenish-yellow instead of brown or fulvous, and 

 neasures, length 21, diam. 10, length of aperture 14.7 mm. 



18. S. NEBULOSA Dall. PI. 29, fig. 74. 



' ' Shell of a brilliant yellow brown, clouded irregularly with 

 opaque blotches, thin, ovoid, with 5 J whorls ; nucleus smooth, 

 the apex blunt, the second whorl wider between the sutures 

 than the third; surface of the shell polished, with the incre- 

 mental lines occasionally and irregularly conspicuous; spire 

 short, the suture deep and channeled, but narrow; base 

 slightly attenuated, pillar with its edge thickened, twisted, 

 and slightly reflected; outer lip thin, sharp, nearly straight. 

 Length 22, maximum diameter 10 mm." (Dall). 



