LIMICOLARIA, WEST AFRICA. 255 



band, longitudinally plicate in front of the colirmella. Colu- 

 mella wide, arcuate, prone in front, obliquely truncate and 

 not reaching to the base. Aperture semioval, the base sub- 

 effuse, violaceous inside ; peristome simple, unexpanded, the 

 columellar margin dilated, sloping. Length 105, diam. 47 

 mm. (Morel.}. 



West Africa: interior of Gabun (Capt. Vignon) . 



Achatina vignoniana MOREL., Journ. de Conchyl., 1874, p. 

 372. Limicolaria v. MORELET, J. de C., 1890, p. 65, pi. 1, 

 f. 1. KOBELT, C. Cab., p. 63, pi. 20, f. 1. 



Apparently a very distinct species. The figure is from a 

 specimen not quite adult. 



11. L. PLAMMEA (Miiller). PL 18, figs. 93, 94. 



Shell perforate, ovate-elongate, rather thin, nearly smooth; 

 tawny-white, ornamented with wide, wavy chestnut streaks. 

 Spire long-conic, the apex obtuse, white. Whorls 9, slightly 

 convex, granulose-decussate above, the last three-sevenths the 

 total length, not swollen; columella slightly arcuate, lilac- 

 tinted. Aperture nearly vertical, subrhombic-semioval, an- 

 gular at the base, opaline within; peristome simple, unex- 

 panded, the columellar margin dilated to the base, vaultingly 

 reflexed. Length 75, diam. 30, length apert. 35, width 16 

 mm. (P/V.). 



West Africa: Christiansborg, on the Gold Coast (Dr. Mas- 

 man; type locality); on the Niger river (Fraser). East 

 Africa: Guaso Narok, Alngaria and Leikipia (Gregory); 

 Free Town, Sierra Leone (Stearns). 



Helix flammea MULL., Verm. terr. et fluv. Hist., ii, p. 87, 

 exclusive of synonymy (1774). ? Bull a flammea CHEMNITZ, 

 Conchyl. Cab., ix, p. 32, pi. 119, f . 1024, 1025 (! = = . kam- 

 ~beul). Bulimus flammeus BRUG., Encycl. Meth., i, p. 322. 

 PFR., Monogr., ii, p. 180. REEVE, C. Icon., v, pi. 53, f. 352. 

 -DESH. in Fer., Hist., ii, p. 110, pi. 141, f. 1-3. Limicolaria 

 flammea SCHUM., Essai d'un nouv. Syst, p. 200. SHUTTLW., 

 Notitiae, i, p. 47, pi. 7, f. 1-3. MARTENS, Malak. Bl., 1865, 

 p. 200; 1869, p. 73; 1873, p. 39; 1870, p. 33 (var. f estiva). 

 PFR., Monogr., iv, 584 ; vi, 208 ; viii, 269 ; Novit. Conch., p. 



