128 C ALLISTOPLEPA . 



inflated. Aperture ample, slightly oblique ; peristome simple, 

 thin; columella lightly inflexed, obliquely truncate. Length 

 43, diam. 23, length of aperture 24, diam. 14 mm. (Sowb.). 



A light shell of elegant form, sculptured with very fine, 

 close, corrugated ridges. The body-whorl is sprinkled with 

 small, white, flake-like spots (Soivb.). 



Length 59, diam. 33 mm. (d'Ailly). 



Calabar? (Sowb.). Kamerun: Bonge (Dusen, Sjosted), 

 Itoki, Kitta (Sjosted), Bibundi (Jungner), Barombi 

 (Preuss). 



Achatina barriana SOWB., P. Z. S. Lond., 1889, p. 579, pi. 

 56, f. 2. v. MARTENS, Sitzungsber. Ges. naturf. Freunde 

 Berlin, 1891, p. 30. Ganomidos barrianum (Sowb.) D'AILLY, 

 Bihang, etc., p. 69 (dentition), 70, pi. 3, f. 5-9. 



The spiral striation is especially well developed in this 

 species, while the oblique axial sculpture is not so strong or 

 regular as in the preceding. The pattern of coloring is the 

 same as in C. shuttleworthi, but less distinct; the whitish 

 spots are very small and scattered all over the surface, but 

 of the same nature as those of C. shuttleworthi. Mr. Sow- 

 erby's type was not full-grown. The above notes and the 

 figures are from d'Ailly. 



3. C. PELLUCIDA (Putzeys). PI. 43, figs. 3, 4. 



Shell imperf orate, ovate, of papery consistence, corneous, 

 hardly glossy. Spire conic, a little contracted at the end, 

 the apex obtuse. Whorls 6, a little convex, painted with, 

 brown wavy flames, sometimes zigzag; the first 5 whorls reg- 

 ularly granulate, the last whorl inflated, roughened by 

 growth-wrinkles, decussate down to the periphery. Aperture 

 oval, the lip acute; columella arcuate, margins joined by a 

 very thin callous. Length 40-45, diam. 21-26, length of aper- 

 ture 23-28 mm. (Putzeys]. 



Congo Free State: forest of Piani Kapuri, in the zone of 

 Manyema. 



Ganomidos pellucidus PUTZ., Ann. Soc. Roy. Malac. de 

 Belgique, xxxiii, 1898, p. Ixxxiv, f. 20, 21 (Dec. 15, 1899). 



Not unlike C. barriana, but no white dots are mentioned, 

 and there seem to be no spot-girdles at suture and periphery. 



