Xolotrema

Xolotrema
Xolotrema notata from W. G. Binney, 1878 [1]
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Order:	Stylommatophora
Family:	Polygyridae
Subfamily:	Triodopsinae
Tribe:	Triodopisini
Genus:	Xolotrema Rafinesque, 1819 [2]

Xolotrema is a genus (or subgenus under Triodopsis ) of air-breathing land snails, terrestrial pulmonate gastropod molluscs in the family Polygyridae.

Shell description

Pilsbry (1940) ^[3] characterized the shell of Xolotrema (which he considered to be a subgenus) thus:

"Triodopses, in which the inner margin of the basal lip has a long bladelike lamella, terminating at a notch where it joins the outer arc of the lip; the embryonic whorls are covered with close retractive radial striae (subobsolete in T. fosteri)."

Species

Species within the genus Xolotrema include:

• Xolotrema carolinensis
• Xolotrema fosteri
• Xolotrema notatum
• Xolotrema obstricta

References

1. Binney, William G. (1878). The Terrestrial Air-Breathing Mollusks of the United States and Adjacent Territories of North America. Vol. 5 (plates). Bull. Mus. Comparative Zool., Harvard. Plate 14.
2. Rafinesque, C. S. (1819). Journal de Physique, de Chimie, d'Histoire Naturelle 88:425.
3. Pilsbry, Henry A. (1940). Land Mollusca of North America (North of Mexico). Acad. Nat. Sci. Philadelphia, Monograph 3, vol. 1(2): 823.