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> Cypriniformes (Carps) > Nemacheilidae (Brook loaches)
Etymology: Homatula: Greek, homos, homoios = similar + Greek, atylos, atylotos = without callosities; nigra: Name from Latin 'niger' for black, referring to the pattern of bars on the flank in front of the dorsal-fin origin; an adjective.

Environment: milieu / climate zone / depth range / distribution range Écologie

; eau douce démersal. Subtropical

Distribution Pays | Zones FAO | Écosystèmes | Occurrences | Point map | Introductions | Faunafri

Asia: China.

Taille / Poids / Âge

Maturity: L_m ? range ? - ? cm
Max length : 10.9 cm SL mâle / non sexé; (Ref. 121600)

Description synthétique Clés d'identification | Morphologie | Morphométrie

This species is distinguished from its congeners by the following set of characters: flank without marks (vs. vertical bars on flank along lateral line in all congeners); no free protrusions between the pelvic fins (vs. a pair of free protrusions in H. pycnolepis); gill opening smaller, its upper angle level with the lower edge of eye (vs. larger, with upper angle aligned with middle point of eye in H. acuticephala, H. anguillioides, H. coccinocola, H. erhaiensis, H. pycnolepis); pelvic axillary lobe present (vs. absent in H. acuticephala, H. anguillioides); marked notch on lower jaw (vs. lower jaw spoon-shaped and without notch in H. erhaiensis, H. wuliangensis); dorsal-fin base shorter than longest branched dorsal-fin ray (vs. longer than longest branched dorsal-fin ray in H. acuticephala, H. anguillioides, H. cryptoclathrata, H. erhaiensis, H. wuliangensis (Ref. 121600).

Inhabits flowing and clear stream environments, living at the bottom and shuttling back and forth among rocks and gravel. It is omnivorous, mainly feeding on algae attached to rocks, organic residues, and small aquatic insects (Ref. 121600).

Life cycle and mating behavior Maturité | Reproduction | Frai | Œufs | Fécondité | Larves

Référence principale Upload your references | Références | Coordinateur | Collaborateurs

Li, X., X.-J. Che and W. Zhou, 2019. Loaches of Homatula (Teleostei: Nemacheilidae) from the upper Salween River in Yunnan, China with description of three new species. Zootaxa 4711(2):330-348. (Ref. 121600)

Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2024-2)

Non évalué

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Menace pour l'homme

Harmless

Utilisations par l'homme

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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = No PD50 data [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00724 (0.00347 - 0.01512), b=3.01 (2.83 - 3.19), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Niveau trophique (Ref. 69278): 2.7 ±0.3 se; based on size and trophs of closest relatives

Résilience (Ref. 120179): Milieu, temps minimum de doublement de population : 1,4 à 4,4 années (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Low vulnerability (10 of 100).

Homatula nigra Li, Che & Zhou, 2019