Asian water monitor – Varanus salvator (Laurenti, 1768) of Sabah / Borneo. Varanus salvator is a large semi aquatic monitor lizard native to South and Southeast Asia where it frequents rivers wetlands mangroves and even urban waterways and is among…
Saltwater crocodile – Crocodylus porosus Schneider, 1801 of Borneo – around 80m ASL Crocodylus porosus Schneider 1801, the saltwater crocodile, is the largest living reptile, with exceptional males approaching seven metres and about 1200kg while most adults are smaller; it…
Smooth Slug Snake, Asthenodipsas laevis (BOIE, 1827) – of Sarawak/Borneo – around 1020m ASL. Asthenodipsas laevis (Boie, 1827) is a small, slender pareid snake (Pareidae) endemic to Sundaland and adjacent mainland margins; within Asthenodipsas it belongs to the A. malaccana…
Sabah pit viper, Trimeresurus sabahi Regenass & Kramer, 1981 – of Sarawak / Borneo – around 900m ASL This specimen could be the same individual that I found near the location a few weeks ago. Several distinctive characteristics suggest that…
Borneo red snake or Stolickza’s stream snake, Paraxenodermus borneensis (BOULENGER, 1899) – of Sarawak/Borneo – around 1120m ASL. Paraxenodermus borneensis (Xenodermidae) is a rare, Borneo-endemic snake, originally described as Stoliczkaia borneensis (Boulenger, 1899) and reassigned in 2021—based on morphological and…
Calliophis intestinalis (thepassi?) (LAURENTI, 1768) of Sarawak/Borneo around 1050m ASL. Calliophis intestinalis is a highly venomous elapid from Southeast Asia (e.g., Malay Peninsula, Sumatra, Borneo, Java), mainly nocturnal and partly leaf-litter/ground-dwelling. When threatened it flips to expose its strongly banded…
Scaly-eared Diminutive Leaf-Litter Skink – Tytthoscincus leproauricularis Karin, Das & Bauer, 2016 of Sarawak / Borneo – around 1280m ASL Tytthoscincus leproauricularis Karin, Das & Bauer, 2016 (Scincidae) is a very small leaf litter skink, so far only documented from…
Asian vine snake – Ahaetulla prasina (Boie, 1827) from Sarawak/Borneo – around 900m ASL Ahaetulla prasina (Colubridae: Ahaetuliinae) is an arboreal, diurnal, opisthoglyphous vine snake that on Borneo is documented from Brunei, East Malaysia (Sabah, Sarawak), and Indonesian Kalimantan; its…
Sabah pit viper, Trimeresurus sabahi Regenass & Kramer, 1981 – of Sarawak / Borneo – around 1300m ASL Trimeresurus sabahi (Sabah pit viper) is a montane pit viper endemic to northern Borneo (Malaysia: Sabah, Sarawak), typically occurring in submontane to…
White-spotted cat snake, Boiga drapiezii (H. Boie in F. Boie, 1827) – of West-Sarawak/Borneo – around 1250m ASL Boiga drapiezii (white-spotted cat snake) is a slender, arboreal, rear-fanged colubrid distributed across maritime Southeast Asia, including Indonesia (Java, Sumatra, Borneo, Mentawai…