Classification / Names
Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa
Teleostei (teleosts) >
Cypriniformes (Carps) >
Gastromyzontidae (Hillstream loaches)
Etymology: duci: Name 'duci' in honor of Vietnamese ichthyologist, Prof. Nguyen Huu Duc, for his contrubution in freshwater fishes studies in Vietnam.
Eponymy: Mari Albert Johan Van Manen (1877–1943) was a Dutch ethnographer, theosophist and orientalist who made a specialty of the study of Tibet and its texts. [...] (Ref. 128868), visit book page.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; demersal. Subtropical
Asia: Vietnam.
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 5.4 cm SL male/unsexed; (Ref. 133159)
Short description
Identification keys | Morphology | Morphometrics
Dorsal spines (total): 3; Dorsal soft rays (total): 7; Anal spines: 2; Anal soft rays: 5. This species is distinguished from its congeners by the following set of characters: pectoral fin rays I, 15; pelvic fin rays I, 8; lateral line scales 77-83; anus farther posterior insertion of pelvic fin than to anal fin origin, caudal peduncle depth approximately as caudal peduncle length (8.2%-8.5%); distance from pelvic fin to pectoral fin (39.1%) larger than distance from pelvic fin to anal fin (29.8%); broad midlateral black stripe stretching from behind head to caudal-peduncle base; black dotted stripe stretching from base of pectoral fin to posterior end of anal fin; lower lip with three large papillae; median wider than two lateral ones; rostral fold divided into three triangular lobules of same size; distinct black dot at base of pelvic and pectoral fins; fleshy black protrusion in pelvic fin base (Ref. 133159).
Body shape (shape guide): elongated; Cross section: oval.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Dang, H.T.T., H.T. Duong, F. Li, H.Q. Nguyen and H.D. Tran, 2024. A new loach species of the genus Vanmanenia (Actinopterygii: Cypriniformes: Gastromyzontidae) from hill streams of Vietnam. Acta Ichthyologica et Piscatoria 54:177-187. (Ref. 133159)
IUCN Red List Status (Ref. 130435: Version 2025-1)
Threat to humans
Harmless
Human uses
Fisheries: of no interest
Tools
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Internet sources
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Trophic level (Ref.
69278): 2.7 ±0.3 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
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