Dicharax (?) japonicus (E. von Martens, 1865)

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

Dicharax (?) japonicus (E. von Martens, 1865)

Alycaeus japonicus E. von Martens, 1865: 51.

Alycaeus japonicus - Pilsbry 1900: 381.

Alycaeus harimensis Pilsbry, 1900: 381.

Alycaeus reinhardti - Pilsbry 1900: 381.

Alycaeus (Chamalycaeus) harimensis - Kobelt 1902: 356.

Alycaeus (Chamalycaeus) japonicus - Kobelt 1902: 357.

Alycaeus (Chamalycaeus) pilsbryi Kobelt 1902: 361. (nom. nov. pro Alycaeus reinhardti Pilsbry, 1900, non Mörch, 1872)

Chamalycaeus harimensis - Azuma 1982: 10, pl. 3, fig. 29.

Chamalycaeus pilsbryi - Azuma 1982: 11, pl. 4, fig. 36.

Chamalycaeus japonicus japonicus - Minato 1988: 14.

Chamalycaeus japonicus - Yano 2015: 233-236, fig. 2.

Type locality.

“Yokohama”.

Material examined.

ANSP 78777a (lectotype of A. harimensis , designated by Baker 1964, photographs examined); ANSP 78817a (lectotype of A. reinhardti , designated by Baker 1964, photographs examined); 紀伊周参見 (Kii Susami), Toru Inaba collection, NSMT-Mo 66474 (5 shells) (" japonicus harimensis ").

Remarks.

Protoconch low, glossy; R2 with 18-22 low, blunt ribs connected to each other near the tube, but free at the edge of the body whorl (here the distance between two ribs is ca. as wide as the width of a single rib); no spiral lines visible on the teleoconch.