A new species of gecko, Cnemaspis brahmaputra, has recently been discovered in Assam, highlighting the rich biodiversity of Northeast India.
About Cnemaspis brahmaputra:
Namedin- Honor of the Brahmaputra River
Location - Discovered near the Dirgheswari Temple on the bank of Brahmaputra River in Guwahati, Assam.
Published by - Taprobanica, the Journal of Asian Biodiversity.
Genus and Family - It belongs to the genus Cnemaspis, which is widely distributed across South and Southeast Asia.
It falls within the podihuna clade, a grouping predominantly found in Sri Lanka.
Cnemaspis brahmaputra is only the 2nd representative of this clade on the Indian mainland, the other being Cnemaspis assamensis.
Morphological Features - Unlike most geckos in Northeast India which are nocturnal, Cnemaspis brahmaputra is diurnal (active during day).
Distinguished from its close relatives by -
A larger body size (30.8–35.7 mm).
Fewer midbody scale rows.
A higher number of ventral scales (enlarged scales on the underside).
Absence of tubercles (small rounded projections) on lower flanks.
3 enlarged rows of thigh scales parallel to the enlarged femoral scale row.
Geographical Importance- The discovery near the Brahmaputra River underscores the critical role of major rivers as:
Geographic barriers - Isolating populations and leading to speciation.
Evolutionary engines -Shaping the distribution and genetic diversity of species.
Its restricted range alongside the river enhances understanding of local endemism and biodiversity patterns in Assam.
Signifying rivers - Environmental role as both a barrier and corridor for species evolution, and its symbolic connection to Assamese identity.
Cultural Importance- Naming of the species pays tribute to the Brahmaputra River's deep importance in Assamese folklore, daily life, & regional pride.
Finding aims - To boost local awareness about Assam's unique biodiversity and the urgent need for its conservation amidst ecological threats.
Significance - Highlights Northeast India's status as a biodiversity hotspot and emphasizes the ongoing importance of scientific exploration in under-studied habitats to uncover new species and understand evolutionary processes.
