Natural History Notes. Lanthanotus borneensis (Bornean Earless Monitor). Diet and attempted predation

Veronica, Leah and Pui, Yong Min and Indraneil, Das (2023) Natural History Notes. Lanthanotus borneensis (Bornean Earless Monitor). Diet and attempted predation. Herpetological Review, 54 (3). pp. 468-469. ISSN 0018-084X

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Abstract

Lanthanotus borneensis is a semi-aquatic lizard endemic to Borneo, and except for an earthworm and crustacean found in the gut of one specimen (Losos and Greene 1988. Biol. J. Linn. Soc. 35:379–407) little is known of its diet in the wild. Captive lizards have been reported to eat fish (Harrisson 1961. Sarawak Mus. J. 10:286–292; Mertens 1966. Sarawak Mus. J. 14:320–322), squid, earthworms (Mendyk et al. 2015. Biawak 9:44–49), and frogs (Arroyyan et al. 2021. Treubia 48:103–116). Langer (2017. Russian J. Herpetol. 4:1–10) reported crab remains in the proximity of a female L. borneensis retreat but suspected these were left by the crab-eating Varanus dumerilii. Here, we report on a new prey item and an instance of attempted predation on crabs observed in L. borneensis.

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