

LIGUUS CORONA. 183 



Var. loroisianus (Hupe). PI. 34, figs. 7, 8. Shell elongate- 

 turreted, sinistral, with elevated, pyramidal-acuminated spire and 

 obtuse apex ; whorls 8; surface with very fine, close oblique striae, 

 apparent on the last whorl but hardly visible upon the earlier ones. 

 Earlier whorls bright yellowish-rose colored, the tint deeper at the 

 apex, traversed by a narrow brown or blackish articulated or in- 

 terrupted band, which disappears on the last whorl ; the latter is 

 blackish varied with spots and irregular longitudinal bands of orange- 

 yelloiv, formed by a ground of that color. 



Aperture oblique, white inside; columella brilliant blackish, strongly 

 twisted in the middle, and provided with a strong white callus ex- 

 tending lo the base, with a slight truncation there. Alt. 64, diam. 

 30 mill. 



Between Lamas and Tarapoto, eastern Peru, 300-400 meters above 

 the sea (Stiibel); Juraty, middle Amazonas (Dohrn). 



Bulimus loroisianus, HUPE, in Castelnau, Exped. dans 1'Amer. du 

 Sud, Moll., p. 35, pi. 10, f. 1 (1857); cf. PFR., Malak. Hlatt. 1859, 

 p. 50. Orthalicus loroisianus PFR., Monogr. vi, p. 202 DOHRN, 

 Jahrb. D. Malak. Ges. ix, 1882, p. 109. Orthalicus (Corona) melan- 

 ostomus Shuttl., var. loroisianus, Hupe, MARTENS, Conch. Mittheil. 

 ii, p. 159. 



The coloration of the last whorl, consisting of orange yellow spots 

 scattered over a ground of intense black, seems to be the only char- 

 acter separating this form from L. regalis, while the blackness of the 

 last whorl suggests L. regina, which differs in having the outer lip 

 dark-bordered. I have not seen specimens. 



Dr. Dohrn records loroisianus from " Juraty " (? Jutahy river, in 

 western Brazil). Of fourteen specimens from this place examined 

 by him, the largest reached a length of 68 mill. They almost agree 

 in coloring, the upper whorls being fleshy-rose, then becoming 

 whitish-yellow, the last whorl covered with an olive-colored cuticle, 

 more or less rubbed off. The typical narrow dark band of the upper 

 whorls is never wanting ; generally there are similar streaks above or 

 below, always interrupted. Dark stripes and flames are very irreg- 

 ular in occurrence, so that a few specimens appear especially dark. 

 The aperture is milk-white within, columella and parietal wall 

 glossy violet-black. The columellar fold shows great variability, 

 sometimes being but little swollen, sometimes having thick callosities 

 which on the edge bear one or two protuberances, this edge being 



