Anentome cambojiensis (Reeve, 1861)

Ng, Ting Hui, Jeratthitikul, Ekgachai, Sutcharit, Chirasak, Chhuoy, Samol, Pin, Kakada, Pholyotha, Arthit, Siriwut, Warut, Srisonchai, Ruttapon, Hogan, Zeb S. & Ngor, Peng Bun, 2020, Annotated checklist of freshwater molluscs from the largest freshwater lake in Southeast Asia, ZooKeys 958, pp. 107-141 : 107

Anentome cambojiensis (Reeve, 1861) Fig. 5K

Melania cambojiensis Reeve, 1861: Melania species 468, pl. 59. Type locality: “Cambojia”.

Clea (Anentome) cambojiensis : Brandt 1974: 202.

Material examined.

CIFI.MOL.039, ZRC.MOL.015708, ZRC.MOL.015709, ZRC.MOL.015710, ZRC.MOL.015711, ZRC.MOL.015712, ZRC.MOL.015713, ZRC.MOL.015714.

Distribution and habitat.

Tonle Sap Lake; on muddy substrate (locality no. 8, 11, 12, 17 and 37).

Remarks.

The type specimen of Anentome cambojiensis was collected by Henri Mouhot ( Reeve 1861) and appears to be endemic to the Tonle Sap basin. Its range may extend to eastern Thailand in Rayong ( Morlet 1889), although later surveys have not recorded this species beyond Cambodia ( Brandt 1974) and we did not find it in tributaries around the Lake. Brandt (1974) also did not find the species after surveying 'the banks of Tonle Sap carefully’, but we found it to be common and widespread throughout the Lake. Locals know the species to be carnivorous or a scavenger, and we found it around dead branches that are stuck into the mud to attract shrimp.

Figures

Figure 5. Freshwater gastropods of the Tonle Sap basin, Cambodia A Pila gracilis B Pila pesmei C Pila virescens D Pomacea maculata E Filopaludina martensi cambodjensis F Idiopoma umbilicata G Mekongia rattei H Trochotaia trochoides I Bithynia siamensis goniomphalus J Wattebledia siamensis K Anentome cambojiensis L Anentome helena M Sulcospira housei N Melanoides tuberculata O Indoplanorbis exustus and P Radix rubiginosa. Scale bars: 10 mm, unless stated otherwise. Photographs by TH Ng.