Nannocharax Rubensteini
📖 Overview
Overview information for Nannocharax Rubensteini is currently being compiled by our editorial team.
🔬 Taxonomy
🐟 Physical Description
Dorsal spines (total): 0; Anal spines: 0; Vertebrae: 35 - 37. Diagnosis: Hemigrammocharax rubensteini is distinguished from all congeners, except H. lineostriatus, by the presence of a dark, typically continuous, longitudinal band extending from the posterodorsal margin of the opercle to the dark spot overlying the caudal peduncle, vs. a body pigmentation pattern consisting of several vertical bars in H. angolensis, H. machadoi, H. minutus, H. monardi, H. multifasciatus, and H. wittei or lacking a dark longitudinal band in H. ocellicauda and H. uniocellatus . Hemigrammocharax rubensteini differs from H. lineostriatus in having the dorsal-fin origin located anterior to the vertical through the pelvic-fin origin, vs. the dorsal-fin origin located posterior to the vertical through the pelvic-fin insertion; 18 to 30 perforated scales along the lateral line, vs. 6 to 9; and 12 to 14 branched dorsal-fin rays, vs. 9 to 11 . Hemigrammocharax rubensteini has a variably discontinuous lateral line which in some instances has only a few unpored scales and thus approximates the completely pored lateral line characteristic of the species of Nannocharax; it differs also from the members of that genus with a continuous dark midlateral longitudinal band both in the incompletely pored lateral line, vs. completely pored; and the lower number of total scales along that series, 35-38 vs. 39 or greater in N. ansorgii, N. latifasciatus, N. lineomaculatus, N. parvus and N. usongo . : elongated; Cross section: compressed.
🌀 Behaviour
Behavioural data for Nannocharax Rubensteini is currently being reviewed.
🦐 Diet
Diet information for Nannocharax Rubensteini is currently being compiled.
🥚 Reproduction
Reproduction data for Nannocharax Rubensteini is currently being compiled.
🌍 Habitat & Distribution
Freshwater; pelagic. Tropical
🌿 Ecology
📐 Morphometrics
🌡️ Water Parameters & Tolerance
📊 Population Risk & Fisheries
🔍 Similar Species
👥 Community & Contribute
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