6 STROPHOCHEILUS. 



Spix, digessit, descripsit, etc., Dr. J. A. Wagner, p. 12, pi. 11, (1827) ; 

 species <S. hcemastomus Spix (=B. ovatus Miiller), and S. almeida 

 Spix (=5. pudicus Miiller). Strophochilus ALBERS-MARTENS, Die 

 Hel. 1860, p. 191, type B. almeida Spix. Comclus ALBERS, Die 

 Hel. 1850, p. 147. 



Shell ovate-oblong, subperforate and solid, brown, or white and 

 rose under a yellow cuticle. Surface smoothish to the eye or finely 

 rnalleated, the lens showing close minute spiral strice throughout (ex- 

 cept in S. pudicus}. Nepionic shell large. 



Aperture long-ovate, the lip broivn or rose colored, well reflexed 

 and recurved, often with a tooth within, columella reflexed, the fold 

 inconspicuous, not thickened. Type S. pudicus Mull. 



This group contains a number of Brazilian species of moderate 

 size, allied to Borus in the large nepionic shell. Strophoeheilus 

 differs from Plekocheilus, Eurytus etc. in having the nepionic shell 

 proportionally large, post-nepionic whorls two or slightly less; while 

 those groups have a much smaller nepionic shell, often very indis- 

 tinctly demarkea v , and more post-nepionic whorls. 

 The subgenus consists of two groups of species : 

 I. Strophoeheilus (s. str.). Shell malleated ; no spiral stripe, 



8. pudicus. 



II. Coniclus Alb. (restricted). Shell sculptured with minute spiral 

 stripe, 

 a. Surface of body-whorl finely malleated throughout. 



b. Obese ; peristome and parietal wall dark brown ; outer 

 lip toothed, unidentatus* 



bb. Oblong ; peristome rose and white ; lip not toothed, 



erythrosoma. 

 aa. Surface smooth or hardly malleated, lip roseate. 



b. Brown, with satiny bands ; spiral stripe beaded ; earlier 



whorls spirally striated ; lip not toothed, milleri. 



bb. Yellow and rose ; earlier whorls vertically striated ; outer 



lip toothed, planidens. 



bbb. Chestnut colored, with zigzag streaks and spots of golden ;. 



outer lip not toothed, rhodocheilus. 



S. PUDICUS Miiller. PI. 19, figs. 37, 38. 



Shell oval-oblong umbilicated, rather solid, roseeate under a thin- 

 pellucid yellowish cuticle, the rose often fading to white on the back 

 of last whorl. Surface coarsely and irregularly netted with close Ion- 



