Paropeas tchehelense (de Morgan, 1885)
“Mollendorff (20, p. 337) has expressed the opinion that the Stenogyra tchehelensis and S. swettenhami of de Morgan are the same, the latter being only a slight variation. After examining a large series of specimens from the above localities, I can fully endorse this opinion. The eggs of this mollusc are exceedingly large for the size of the animal, and are enclosed in a hard calcareous shell, whilst those in the lower portion of the oviducal canal has not. Specimen having eight whorls in the shell were found to be sexually mature; the largest shell met with was one with twelve whorls.” (Collinge, 1902)
“The disparity in sculpture between the earlier and later whorls is characteristic. The apical whorls (fig. 8) are not costulate. The above description is from a specimen received from M. de Morgan. Dr. von Moellendorff considers S. swettenhami synonymous. Mr. Collinge states that the eggs are exceedingly large for the size of the animal, and are enclosed in a hard, calcareous shell. Specimens having 8 whorls were found to be sexually mature. The largest shell met with was one with 12 whorls.” (Pilsbry, 1906)
Morgan (1885b) original descriptions on Stenogyra tchehelensis – “Stenogyra testa fragili, translucida, elongata, paulum obesa, fusiformi, imperforata, ad acutuni obtusa; 8-10 anfractibus composita, striis tenuissimis paralleliter lineis aetatis ornata, anfractibus regulariter convolutis, sed largioribus in média testa quam in ultimis anfractibus; sutura lineata; apertura obliqua, elliptica; peristomate recto et acuto.”
Morgan (1885) French descriptions on Stenogyra tchehelensis – “Coquille: Fragile, transparente, allongée, un peu obèse, fusiforme. imperforée, obtuse au sommet, composée de 8 à 10 tours de spire ornée de stries très fines parallèles aux stries d'accroissement; tours de spire assez régulièrement enrôlés mais beaucoup plus large vers le milieu de la coquille qu'aux environs de l'ouverture, suture linéaire très marquée, ouverture oblique, ovale, péristonie simple et tranchant. Couleur; Cette coquille est d'un brun corné, uniforme.” (Morgan, 1885)
Pilsbry (1906) descriptions on Prosopeas tchehelensis – “Shell imperforate, turrited, pale yellowish-brown (or with a greenish tint where the soft parts show through), lusterless. Whorls 8½, convex, the first 1½ smooth, whitish, the next two sculptured with strong, rather widely and unevenly spaced, arcuate, thread-like striae; subsequent whorls very densely and finely striate, the striae arcuate. Last whorl strongly tapering below the periphery. Aperture narrowly ovate, the outer lip arched forward above the periphery, retracted at its sutural insertion. Columella sinuous, concave above, retracted at the base.”
Stenogyra tchehelensis - “Dimensions: Longueur, 23 mm; épaisseur maxima, 5 mm; longueur de l’ouverture, 6 mm; largeur de l'ouvorture, 3 mm.” (Morgan, 1885); Prosopeas tchehelensis – “Length 16, diam. 4.5 mm., aperture 5 mm.” (Pilsbry, 1906)
Type locality – “G. Tchéhèl (vallée de la riv. Pluss)” (Morgan, 1885)
Other localities – “Gunung Inas, 3000 ft., State of Perak” (Collinge, 1902); “Belimbing (from jungle fllor, at base of cliff), State of Lingeh” (Collinge, 1902); “Biserat, State of Jalor” (Collinge, 1902); “Bukit Besar, Nawngchik, 2500 feet” (Collinge, 1903); “Kelantan; Gunung Reng, (54°3’00”N, 101°44’55”E)” (Davison & Kiew, 1990); “Kelantan; Batu Tampah, (4°51’25”N, 101°57’20”E)” (Davison & Kiew, 1990); “Kelantan; Batu Pulau Raba, (5°04’15”N, 101°55’35”E)” (Davison & Kiew, 1990); “Kelantan; Ciku 5, (5°00’30”N, 102°12’30”E)” (Davison & Kiew, 1990); “Kelantan; Gua Gagak, (4°46’00”N, 101°58’20”E)” (Davison & Kiew, 1990); “Kelantan; Ciku 4, (5°04’00”N, 102°11’45”E)” (Davison & Kiew, 1990); “Kelantan; Gua Panjang, (4°48’00”N, 102°00’00”E)” (Davison & Kiew, 1990)
“Habitat - J’ai rencontré cette espèce en très grande abundance sur le G. Tchéhèl (vallée de la riv. Pluss); elle vit sur les feuilles mortes et dans la mousse à une altitude d'environ 300 mètres; son développement est particulièrement favorisé dans cette localité par l'affleurement d'un filon de calcite très puissant, sur lequel elle trouve le carbonate de chaux nécessaire à la formation de sa coquille.” (Morgan, 1885)
“Like other members of the sub-family in Malaya the members of this genus thrive enormously in caves, where bat’s ung evidently affords them a suitable nutrient medium. They are to be found also under stones etc. in damp shady places.” (Laidlaw, 1933)