210 ORTHALICUS. 



iphery (as in figs. 35, 37 ), and above (fig. 38); the general black- 

 ness sometimes interrupted by some dirty white, rough varices (as 

 in fig. 37). Surface sculptured with irregular growth-wrinkles, 

 often rougher and finely plicatulate on the last whorl, the latter half 

 of which is frequently coarsely plicate. Whorls 6J to 7, the first 

 obtuse, often amputated and plugged, the rest moderately convex. 



Aperture oblique, ovate, red-purple within, becoming paler in the 

 throat and darker towards the lip ; peristome blunt, not expanded, 

 pale-edged, with a dark-brown border inside ; columella purple, bi- 

 sinuate, its reflexed callus and the strong parietal callus almost 

 black. 



Alt. 69, diam. 34, longest axis of aperture 36 mill. 



Alt. 62, diam. 29, longest axis of aperture 32 mill. 



Alt. 61, diam. 32, longest axis of aperture 32 mill. 



Colombia: Chopa, in the province of Pamplona (Linden) ; Cucuta 

 (Bland) ; Canelos, Ecuador (Stiibel). 



Achatina regina B, PFR., Monogr. Hel. Viv. ii, p. 244 A. regina 

 DESIT. in -Fer., Hist., p. 145, pi. 122, f. 8, 9. Bulimus regina (part) 

 REEVE, Conch. Icon. pi. 27, f. 168 b Achatina atramentaria PFR., 

 P. Z. S. 1855, 116. Orthalicus atramentarius PFR., Monogr. iv, p. 

 591; vi, p. 202. 0. (Corona) atramentarius PFR., Malak. Blatt. 

 1855, p. 167. Bulimus boussingaultii HUPE in Castelnau's Exped. 

 dans 1'Amer. du Sud Moll., p. 37, pi. 9, f. 2 (1857). Orthalicus 

 (Corona) iodes 8 BUTTLE WORTH, Notitias Malacologicse, i, p. 68, pi. 

 4, f. 8 (1856). MARTENS, Conchol. Mittheil. p. 159. 



Smaller than 0. adamsoni, differently colored, the aperture 

 pinkish-purple within, while in adamsoni it is white, shading into 

 violet or bluish-purple toward the lip-margin. The last whorl varies 

 from mottled to a uniform blackish-purple in specimens from a single 

 locality ; my figures 36, 37 and 7 being drawn from shells collected 

 at Cucuta. Pfeiffer gives the length of his type as 81 mill., which 

 is larger than any of the specimens in our collection. Occasional 

 shells (figs. 36, 37) have some patches of a scarlet-brown color at 

 the edge of the blackish tract. Something of the same sort is seen 

 in some specimens of 0. adamsoni. 



Both of the synonyms, iodes and boussingaultii, were based upon 

 the true atramentarius, and do not stand for varietal forms. 



