Dioryx distortus (Haines, 1855)

Pall-Gergely, Barna, Sajan, Sheikh, Tripathy, Basudev, Meng, Kaibaryer, Asami, Takahiro & Ablett, Jonathan D., 2020, Genus-level revision of the Alycaeidae (Gastropoda, Cyclophoroidea), with an annotated species catalogue, ZooKeys 981, pp. 1-220 : 1

publication ID	https://dx.doi.org/10.3897/zookeys.981.53583
publication LSID	lsid:zoobank.org:pub:5194AAC8-6B8A-473F-8A41-470A60182A0B
persistent identifier	https://treatment.plazi.org/id/1D39AED0-21A5-57C4-AF0F-BDD4CEAD189F
treatment provided by	ZooKeys by Pensoft (2020-10-29 22:48:38, last updated 2024-11-25 21:42:09)
scientific name	Dioryx distortus (Haines, 1855)
status

Treatment

Cyclostoma distortum Haines, 1855: 158, pl. 5, figs 5-8.

Alycaeus distortus - Reeve 1878: pl. 3, species 24.

Dioryx distortus - Kobelt and Möllendorff 1897: 146; Kobelt 1902: 337.

Type locality.

“Siam”.

Material examined.

Siam: coll. Haines, AMNH 62467 (1 syntype).

Remarks.

Protoconch matte, without spiral striation; the overall sculpture very weak; first whorl of R1 with spiral striation and widely spaced, irregular radial lines; later spiral lines disappear and radial lines become regular and dense; R2 very long, reaches ca. 150°, it is entirely smooth, only slimmer light and thicker darker stripes alternate.

References

Kobelt, W, Moellendorff, O von, 1897. Catalog der gegenvaertig lebend bekannten Pneumonopomen. Nachrichtsblatt der Deutschen Malakozoologischen Gesellschaft 29: 73-88, 105-120, 137-152. https://www.biodiversitylibrary.org/page/28228303

Kobelt, W, 1902. Das Tierreich. Eine Zusammenstellung und Kennzeichnung der rezenten Tierformen. In Verbindung mit der Deutschen Zoologischen Gesellschaft herausgegeben von der Koeniglich Preussischen Akademie der Wissenschaften zu Berlin. Mollusca: Cyclophoridae. R. Friedlaender und Sohn, Berlin, https://biodiversitylibrary.org/page/1000211

Reeve, LA, 1878. Monograph of the genus Alycaeus. In: Reeve LA (Ed.) Conchologica Iconica: or, Illustrations of the Shells of Molluscous Animals. Reeve and Co., London, 20: 13 pp. [+ 6 pls] https://www.biodiversitylibrary.org/page/8230573