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<< Go back one level - Achatina - Giant African Land Snails

species

Achatina welwitschii Morelet, 1866

kingdom Animalia - animals »  phylum Mollusca - mollusks »  class Gastropoda - gastropods »  order Pulmonata - pulmonates »  family Achatinidae »  genus Achatina - Giant African Land Snails

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Achatina welwitschii

Author: Tryon & Pilsbry

Achatina welwitschii

Author: Breure, A.S.H. , Audibert, C. & Ablett, J.D.

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Description

Shell oblong-conic, solid, covered with a thin reddish cuticle, which is darker below; spire conic-turbinate, pale above, more or less conspicuously flamed with reddish, the apex submamillate. Whorls 8 to 9, convex, granulose-decussate, the last whorl plicatulate-striate, obsoletely decussate in places, shorter than the spire. Columella bluish-white, arcuate anteriorly, narrowly tapering-truncate. Aperture acuminate-oval, blue within, pearly; peristome unexpanded, thin, brown-bordered, the margins joined by a moderate bluish parietal callous. Length 126, diam. 61 mm.
Tryon, G.W. & Pilsbry, H.A.; 1904-1905; Manual of Conchology, Series 2, Volume 17, African Achatinidae

Interchangeable taxa

Morelet defines two varieties: (1) with the shell thick and ponderous, 9,5 whorls, and (2) shorter, more ventricose, blackish-chestnut, thin, with stronger sculpture, found at the cataracts of the Lucala river. It has a whorl less than the type form.
Tryon, G.W. & Pilsbry, H.A.; 1904-1905; Manual of Conchology, Series 2, Volume 17, African Achatinidae

Distribution

West Africa: Humid forests of Golongo-Alto, near Sange, and district of the Due de Braganza, Angola (Dr. Welwitsch).
Tryon, G.W. & Pilsbry, H.A.; 1904-1905; Manual of Conchology, Series 2, Volume 17, African Achatinidae
Author: Jan Delsing

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