228 PSEUDOTROCHUS. 



with fulvous; spire conic, the apex projecting, rather obtuse; 

 whorls 7, convex, narrowly marginate at the suture; the last 

 whorl ventricose, sometimes obsoletely carinate; columella 

 simple, straight, rather narrow, white with a chestnut border, 

 Aperture ovate, the peristome simple, acute; outer margin 

 fragile; columellar margin truncate. Length 34, diam. 19 

 mm. (Morelet). 



West Africa: Grand Bassam, Senegal (Morelet) ; Dabou 

 (Vignon) . 



Bulimus cailleanus MOREL., Revue Zool., Dec., 1848, p. 

 353; 1849, p. 383. Achatina c. MOREL., Series Conch., i, p. 

 24, pi. 3, f. 1. VIGNON, Bull. Soc. Malac. France, v, 70.- 

 A. (zquatoria DESK, in Fer., Hist., ii, p. 151, pi. 22, f. 10, 11. 



There are, according to Morelet, two color-varieties of this 

 species, both white, with the columella of a handsome maroon 

 color: one (fig. 37) is uniform; the other (fig. 38) is orna- 

 mented with nammules and small spots of brown. They are 

 found on the leaves of trees. It is named for the hardy 

 explorer who first visited Timbuctu. 



10. P. MORELETIANUS (Deshayes) . PI. 9, figs. 3, 4, 7. 



Shell ovate-conic, the apex obtuse, mamillate; smooth, sub- 

 striate; spire conic; whorls 7, a little convex, narrow, cren- 

 ulate-margined, the first ones reddish, the last whorl brown- 

 black, obscurely subangular, convex, shorter than the spire. 

 Aperture ovate-lunar, dilated in the middle; peristome sim- 

 ple, acute, white-edged; columella short, narrow, cylindric, 

 slightly emarginate at the end. Length 41, diam. 23 mm. 

 (Desk.). 



West Africa: Grand Bassam, Senegal (Morelet). 



AcJxifuid morclcUana DESK, in Fer., Histoire, ii, 146, pi. 

 137, f. 7, 8. MORELET, Ser. Conch., i, p. 22, pi. 2, f. 1; pi. 

 3, f. 3. PPR., Conchyl. Cab., p. 321, Bulimus, pi. 26, f. 6, 7; 

 Monogr., iii, 480. Pcr'nicris m. SHUTTLEW., NotitiEe, i, p. 

 79. PFR., Monogr., iv, 594; vi, 204. Acliaiina violacea PFR,, 

 P. Z. S., 1851, p. 259. Bulimus zcgzcg MORELET, Revue Zool., 

 1848, p. 353. 



Fig. 4 is a copy of Deshayes' type-figure of moreletianus, 



