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Post by robandcath on Dec 10, 2015 11:49:13 GMT
Could anyone tell me what the difference is between Pleurodonte isabella and pleurodonte sp barbados?
Im getting mixed responses from looking online.
some people say isabella have a dark lip and others say the unknown species has the dark lip. And a couple of people say they are the same type?
Can anyone shed any light on this please x
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Post by wolf on Dec 10, 2015 12:59:25 GMT
Hi robandcath,
I don't konw whether anyone has seriously dealt with this question. I suppose that someone has recognized some differences between typical P. isabella and "P. spec. Barbados". You can find a detailed species description of P. isabella in Pilsbry, Manual of Conchology and compare with the so called "P. spec. Barbados":
"H. ISABELLA Ferussac. PL 24, figs. 42, 43.
Imperforate, depressed, solid, opaque, shining, obliquely striatulate,rarely showing faint traces of spiral impressed lines under a strong lens, whitish or greenish yellow, with two brown bands, which are generally wide, fading into the ground-color on their outer edges, leaving between them a narrow, well-defined peripheral light fascia ; center of the base light colored. Spire low, rounded, obtuse ; apical whorl flat ; sutures linear, becoming impressed around the outer whorl ; whorls 4 1/2, slightly convex, slowly widening, the last subangular or rounded at the periphery, a trifle contracted behind the aperture, scarcely descending anteriorly. Aperture very oblique, oblonglunar, transverse; peristome heavy, thick, brown or brown and white, upper and basal margins parallel, the latter thickened within, the edge of the thickening more or less irregular or subdenticulate, whitish, right margin slightly expanded, terminations of peristome joined by a smooth shining parietal callus. Alt. 13, diam. 23 mill.; alt 11, diam. 20 mill.. Barbados; Guadeloupe; Cayenne."
Manual of Conchology Vol. 5, p. 85f
Kind regards: wolf
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Post by muddydragon on Dec 13, 2015 16:59:24 GMT
Pleurodonte sp. barbados just means any unidentified species of pleurodonte from barbados (it's entirely possible it or some of them are P. isabella) info could be confusing because the name could refer to a number of species at once. having not seen any snails refered to as pleurodonte sp. barbados i cannot comment but if you have them that wolf's info should help you see if they are P. isabella.
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