Chamalycaeus kessneri Vermeulen, 1996

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

Chamalycaeus kessneri Vermeulen, 1996 Fig. 10B

Chamalycaeus kessneri Vermeulen, 1996: 150, fig. 2a-c.

Chamalycaeus kessneri - Vermeulen and Whitten 1998: 46, fig. 23.

Type locality.

"Nusa Penida".

Material examined.

Tengasa Monkey Temple, Nusa Penida, Indonesia, 8°45'S, 115°31'E, leg. A.J. Witten, 1993, NHMUK 20000248 (paratype); Indonesia, Nusa Penida, Tengasa Monkey Temple, 8°45'S, 115°31'E, Secondary forest, leg. A.J. Whitten, 1993, ex coll. J.J. Vermeulen 4080, SMF 311351 (1 paratype). Indonesia, South Kalimantan, Nateh, leg. Yansen Chen, April 2012 (6 shells).

Remarks.

The examined paratype was badly weathered, only the elevated protoconch with some spiral lines on R1 and the short tube were visible. Based on these, C. kessneri remains classified in the genus Chamalycaeus .

The shells from Nateh were considerably smaller than typical C. kessneri , but agreed with that species in terms of shell shape, the short tube, and the spiral striation. Although these six shells were also weathered, one of them was in a relatively good condition. None of the shells showed signs of spiral striation on the protoconch, therefore the placement of this species in Chamalycaeus seems to be justified.

Figures

Figure 10. Shells of Chamalycaeus Moellendorff, 1897 species A Chamalycaeus celebensis (E. von Martens, 1891), possible syntype (ZMB / MOLL 44738) B Chamalycaeus kessneri Vermeulen, 1996, paratype (SMF 311351). Photographs: Barna Pall-Gergely (B) and Christine Zorn (A).