Four new snake species discovered in Papua New Guinea

In Papua New Guinea, herpetology has faced challenges due to species misidentification and limited sampling, leading to a lack of clarity in scientific knowledge. However, a recent study by Fred Kraus from the University of Michigan has shed light on the subject, uncovering four new tree snake species in the Dendrelaphis genus unique to various islands in the Louisiade and Woodlark archipelagos within PNG’s Milne Bay.

These newly identified species include Dendrelaphis anthracina from Sudest Island, known for its black coloration with a white chin and a preference for hunting raptors. Dendrelaphis Melanarkys from Rossel Island stands out with its orange eyes and intricate scale pattern. Dendrelaphis Atra from Misima Island darkens to a matte black as it ages. The smallest of the bunch, Dendrelaphis Rosen from Woodlark Island, is named after the late snake ecologist and conservationist, Clark Rosen.

Papua New Guinea is home to a significant snake population, with 147 species among the 424 documented reptile species, showcasing its rich biodiversity and the gaps in scientific understanding. These newly discovered tree snakes not only add to the visual appeal but also emphasize the phenomenon of “island speciation” in biodiversity. Kraus’s study, based on morphological features and color patterns, corrects previous taxonomic confusion and highlights the potential threats these species face from mining, deforestation, and human activities.

The findings serve as a reminder of the importance of conservation efforts to protect these newly identified species from endangerment.