Betadevario ramachandrani

description

Description. Measurements and counts were taken from the holotype and nine paratypes, ZSI / SRS F. 8147, and NRM 60838 (Table 3). Counts were taken also from NRM 57779 and NRM 44980. General body features and pigmentation are illustrated in Figs. 1 – 2. FIGURE. 1. Betadevario ramachandrani. Holotype, ZSI / SRS F. 8147, male, 45.1 mm SL, from Sita River, Karnataka, India. Body laterally compressed, elongate. Predorsal contour slightly curved, with minor occipital indentation, slightly ascending, sloping posteriorly from dorsal-fin insertion. Prepelvic contour slightly curved. Chest conspicuously more compressed below pectoral-fin base, not keeled. Snout short, rounded in dorsal aspect, obtuse in lateral aspect, about as long as eye diameter. Infraorbital process very low, long, with slightly curved margin. Danionine notch caudally margined by well developed anteromediad projecting laminar dentary process, processes of opposite sides meeting medially when mouth closed. Skin cover absent from distal part of infraorbital process, dentary process, and narrowly anterior margin of supraorbital. Mouth terminal, obliquely directed upwards. Small skin-covered bony knob at dentary symphysis f

Betadevario ramachandrani, a new danionine genus and species from the Western Ghats of India (Teleostei: Cyprinidae: Danioninae)

diagnosis

Diagnosis. As for the genus. For field identification purposes B. ramachandrani is readily distinguished from all species of Devario (see Fig. 1) by its colour pattern including a wide light horizontal band along the middle of the side bordering a wide dark lateral band along the abdominal side, and the long rostral and maxillary barbels.

Betadevario ramachandrani, a new danionine genus and species from the Western Ghats of India (Teleostei: Cyprinidae: Danioninae)

etymology

Etymology. Named for Professor Alappat Ramachandran, School of Industrial Fisheries, Cochin University of Science and Technology, Kochi, in recognition of his contributions fisheries and sea food production management and studies on indigenous ornamental fishes.

Betadevario ramachandrani, a new danionine genus and species from the Western Ghats of India (Teleostei: Cyprinidae: Danioninae)

materials_examined

Holotype. ZSI / SRS F. 8147. Adult male, 45.1 mm SL. India: Karnataka: Dakshina Kannada: Shimoga District: Agumbe, small stream tributary to Sita River, 2 km upstream from Onake Abbi Fall (13 ° 30 ’ 79 ’’ N 75 ° 4 ’ 49 ’’ E), 558 mASL; P. K. Pramod, Jan 2008. Paratypes. NRM 57779, 3, 43.2 – 48.7 mm SL; NRM 44980, 1, 48.3 mm SL, cleared and stained; NRM 57780, 1, 45.0 mm TL, tissue; NRM 57781, 1, 60 mm TL, tissue; India: Karnataka: Dakshina Kannada: Sita River close to Barkana Falls, bordering Shimoga and Someshwara regions, between Hebri and Somaishwara. (Approximately 13 ° 30 ’ N, 75 ° 00 ’ N). No date, A. Manjunath. Kept in aquarium, preserved 2008. — NRM 60838. 9, 35.1 – 36.6 mm SL. Same data as holotype. — ZSI / SRS F. 8147. 10, 49.0 – 61.0 mm SL; Same locality as holotype; P. K. Pramod, 16 Dec 2007.

Betadevario ramachandrani, a new danionine genus and species from the Western Ghats of India (Teleostei: Cyprinidae: Danioninae)