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
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.