Glyptothorax major ( Boulenger, 1894 )

Ikhwanuddin, Mat Esa Mohd, Amal, Mohammad Noor Azmai, Aziz, Azizul, Sepet, Johari, Talib, Abdullah, Ismail, Muhammad Faiz & Hashim, Nor Rasidah, 2017, Inventory of fishes in the upper Pelus River (Perak river basin, Perak, Malaysia), Check List 13 (4), pp. 315-325 : 322-323

Glyptothorax major ( Boulenger, 1894)

Akysis major Boulenger 1894 a: 246 .

Glyptosternum tiong Popta 1904: 191 .

Glyptosternum kükenthali Steindachner 1901: 448 .

Material examined. Table 1; Figure 4f.

Glyptothorax major differs from congeners from Sundaland, except by G. amnestus , G. decussatus and G. plectilis , by having anteromedial striae in the thoracic adhesive apparatus (vs absence of striae). It is further dis- tinguished from G. amnestus and G. decussatus by having slender caudal peduncle 7.7–10.1% SL (vs 10.3–10.9% and 9.8–11.2% SL, respectively), and from G. decussatus by lacking a faint, pale band around the caudal peduncle (vs presence of such color pattern). Additionally distin- guish from G. amnestus and G. plectilis by having the anterolateral edges of the thoracic adhesive apparatus markedly concave (vs straight and convex, respectively), and from G. plectilis by a larger head 27.2–31.3% SL (vs 25.3–27.9% SL); and non-prominent tubercles of uniform size along the flanks (vs with prominent, and enlarged

tubercles) ( Ng and Kottelat 2016). This species occurs in upland and montane brooks as well as small streams and feeds mainly on aquatic insect larvae ( Rainboth 1996).