Glyptothorax scrobiculus, new species, is described from the Tuirial River and tributaries of the Tuivai River in Mizoram, northeast India. It differs from all congeners in having a furrow running along the entire length of the ventral surface of the pectoral spine. The significance of the furrow is briefly discussed, and it is thought to arise from the posterior expansion of the adhesive surface of the pectoral spine.
It further differs from congeners in having a combination of the following characters: eye diameter 7-8 % HL; interorbital distance 25-30 % HL; unculiferous ridges of thoracic adhesive apparatus not extending anteriorly onto gular region; depressed area in thoracic adhesive apparatus not wholly enclosed by ridges; head length 25.0-26.6 % SL; absence of striae on first pectoral- and pelvic-fin elements etc.
Ng HH & Lalramliana (2012). Glyptothorax scrobiculus, a new species of sisorid catfish (Osteichthyes: Siluriformes) from northeastern India. Ichthyological Exploration of Freshwaters 23 (1): 1-9
