STROPHOCHEILUS-THAUMASTUS. 57 



S. T^ENIOLUS Nyst. PL 28, figs. 8, 9. 



Shell ovate-elongate, perforate, thin, the apex obtuse ; most finely 

 granulose ; tawny-brown. Whorls 7, somewhat convex, separated 

 by a crispate suture margined with a white band ; the last whorl 

 ventricose. Aperture ovate, livid within ; outer lip white and 

 acute ; columella white, oblique, connected with lip by a thin pari- 

 etal callus. Alt. 45, diam. 20 mill. (Nyst). 



South America (Nyst). 



Bulimus tceniolus, NYST, Bull. Acad. Roy. Brux., xii, 1845, pt. 2, 

 p. 151, pi. 2, f. 4a, b. REEVE, Conch. Icon., pi. 49, f. 326. PFR., 

 Mouogr., ii, p. 200. 



Compare S. brephoides Orb. ; S. spixii Reeve ; S. spixii Wagner, 

 etc. 



S. BREPHOIDES Orbigny. PL 28, figs. 4, 5, 6, 7. 



Shell subperforate, ovate-oblong, solid, striated and subtly granu- 

 late-decussated, deep brown, sometimes with a pale peripheral band. 

 Spire convex-conic, obtuse ; suture closely crenulated and margined 

 by a wide pale band. Whorls 5?, but slightly convex, the last 

 somewhat shorter than the spire. Columella somewhat receding ; 

 aperture vertical, semi-oval ; peristome straight, thickened ; colu- 

 mellar margin dilated, reflexed, subappressed. 



Alt. 55, diam. 24 ; aperture, alt. 26, width 13 mill. (Pfr.}. 



Peruvian Andes (Matthews) ; Prov. Huancajo, Peru (Raimondi). 



Helix brephoides D'ORB., Mag. de Zool., 1835, p. 17. Bui. bre- 

 phoides D'ORB., Toy. dans 1'Amer. Merid., p. 294, pi. 38, f. 8, 9. 

 PFR., Monogr., ii, p. 143 ; Novit. Conch., iii, p. 491, pi. 106, f. 3, 4. 



A form with conspicuous bands collected by Raimondi, has been 

 figured by Pfeiffer (figs. 6, 7). 



S. ISERNI Philippi. PL 29, figs. 12, 13, 14. 



Shell perforate, oblong-turrited, rather solid, shining, longitudi- 

 nally striatulate ; blackish-chestnut, with a wide whitish band below 

 suture and another of double that width on the base, under a very 

 thin green or pale olive cuticle. Spire long-conic, the apex blackish- 

 purple and obtuse ; suture minutely plicate. Whorls 6 to 7, nearly 

 flat, the last obliquely descending. 



Columella somewhat folded, slightly arcuate, of a livid tint. 

 Aperture oval, rather acuminate above, the inside showing the ex- 

 ternal coloring, bluish tinted, about two-fifths the total length ; 



