Back issues

Volume 24, Issue 4 – 05 November 2018

Volume 24, Issue 4 – 05 November 2018
New Scientific publication – started delivery on November 05, 2018

Full Text | PDF (1,6 MB)

Jayasimhan Praveenraj, Arumugam Uma, John Daniel Marcus Knight, Nallathambi Moulitharan,
Shankar Balasubramanian, Kinattumkara Bineesh and Heiko Bleher: Channa quinquefasciata, a new speciesof snakehead (Teleostei: Channidae) from Torsa River, North Bengal, India, pp.141-152

Channa quinquefasciata, a new species of snakehead from Torsa River, West Bengal, differs from all congeners by possessing a unique greyish to chrome-yellow body colour, with five black oblique bands horizontally along the upper half of the lateral body, dorsal-fin membrane with three rows of multiple black to brown oblong spots running horizontally along the whole fin length, and caudal-fin membrane alternating with <-shaped black spots arranged transversely. Genetically, the closest congener of C. quinquefasciata is C. stewartii from which it differs by K2-P sequence distance of 6.8-7.0%, and morphologically by the absence of numerous black spots on the flanks vs. presence, fewer dorsal-fin rays (33-35 vs. 38-40), fewer caudalfin rays (12 vs. 13), and fewer mid-row lateral-line scales (10-13 vs. 14-16).

Full Text | PDF (308 KB)

Channa quinquefasciata, coloration of live specimens A. Lateral and dorsal view

Jayasimhan Praveenraj, Arumugam Uma, Nallathambi Moulitharan and Heiko Bleher: Channa bipuli, a new species of snakehead (Teleostei: Channidae) from Assam, northeast India, pp. 153-166

Channa bipuli, a new species of colorful snakehead from Assam, Northeast India, is distinguished from all its congeners by possessing a unique bluish dorsum, 25-32 minute, well defined black spots on post-orbital region, inter-orbital region with fewer, dull black spots, lower jaw under-surface with minute black to brown spots, and numerous black spots on dorsum. Channa bipuli morphologically resembles C. pardalis described from West Khasi Hills, Meghalaya, however differs from the latter species by presenting caudalfin
rays devoid of transverse bands (vs. caudal-fin rays with brown transverse bands). It further differs in some osteological features, i.e., by presenting the fifth ceratobranchial slender with erect, canine-like teeth (vs. large inwardly, curved, conical teeth), and palatine elongated with five rows of teeth (vs. two rows of teeth). The genetic distance based on cox1 gene sequences between C. bipuli and C. pardalis is 4.2%, supporting the conclusion that both are distinct species.

Full Text | PDF (473 KB)

Channa bipuli, female, 100.0 mm SL, uncatalogued aquarium specimen. Photo credits: Beta Mahatvaraj.

Hamed Mousavi-Sabet, Saber Vatandoust and Heiko Bleher: An updated checklist of fishes from the Iranian portion of the of Harirud/Tedzhen River basin, pp. 167-184

The Harirud or Tedzhen River basin is an international endorheic basin at the border of Afghanistan, Iran and
Turkmenistan. The present article provides an updated checklist on fish fauna in the Iranian portion of the basin. The confirmed fish fauna comprises 27 species in 22 genera, 7 families, 5 orders, and one class. The most diverse family is the Cyprinidae with 19 species, followed by Nemacheilidae, with 3 species. Five families are represented by a single species. Sixteen species recorded from the Harirud River basin are exotic. Luciobarbus cf. capito is reported for the first time from the basin in Iran.

Full Text | PDF (721 KB)

Map of the Harirud River basin, at the border of Afghanistan, Iran and Turkmenistan.

Previous post


Next post


The Author



No Comment

Leave a reply