Extending the depth range of the Marine File Snake, <i>Acrochordus granulatus</i> (Schneider1799): First known record below 30 m

S nakes represent an exceptional radiation of squamates, thriving in a diversity of habitats (O'Shea 2018).Of the roughly 3,400 species, marine snakes are widely represented by two major groups of elapids.The Hydrophiinae are the most diverse and are known as "true" sea snakes (Sanders et al. 2013;Sherratt 2018), whereas the Laticaudinae are amphibious sea snakes that forage underwater and rest on land (Bonnet et al. 2005; Brischoux and Bonnet 2009).Species from both groups are venomous, active swimmers, and capable of diving to considerable depths when foraging (Brischoux et al. 2007(Brischoux et al. , 2009;;Rasmussen et al. 2021).A third group, the Acrochordidae, is a small radiation represented by just three extant species in a single genus (Acrochordus) that possess none of the listed characteristics of the marine elapids (Lillywhite 2020).Only one species, the Marine File Snake, Acrochordus granulatus (Schneider 1799), occurs in salt and brackish water.This species is widely distributed in diverse coastal environments across the Indo-Pacific Region (