Stenorynchoacrum xijiangensis

You can sponsor this page

Stenorynchoacrum xijiangensis Huang, Yang & Chen, 2014

Upload your photos and videos
Google image
Image of Stenorynchoacrum xijiangensis
No image available for this species;
drawing shows typical species in Cyprinidae.

Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa

Teleostei (teleosts) > Cypriniformes (Carps) > Cyprinidae (Minnows or carps) > Labeoninae
Etymology: Stenorynchoacrum: Sten is derived from Green stenos, means narrow; ryncho from Greek rhynchos, means snout; and from Greek acr, means the extremities of the body (snout, ears or trotters). Thus, rynchoacrum means ventral margin of rostral cap. Stenorynchoacrum alludes to the narrow and undeveloped rostral cap of this genus.;  xijiangensis: Name alludes Xi Jiang, the drainage of the type locality..

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

Freshwater; benthopelagic. Subtropical

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Asia: Xiangsi Jiang, a tributary of Li Jiang draining to Xi Jiang of Zhu Jiang Drainage (Pearl River Drainage) in Guangxi Province, China.

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 8.3 cm SL male/unsexed; (Ref. 95674)

Short description Morphology | Morphometrics

Dorsal soft rays (total): 11; Anal soft rays: 8; Vertebrae: 35 - 37. Stenorynchoacrum xijiangensis differs from all species belonging to Labeoninae by the following characters: middle part of rostral cap undeveloped, narrow, only covering the base of the upper jaw, both sides of rostral cap well developed and extending upward, rostral cap connected the lower lip, both lateral part of which free, as the result of a long postlabial groove separating the posterior margin of lateral part of lower lip and the isthmus, the median part of lower lip protrudes to form a round fleshy pad, whose posterior margin continuous with the mental region, no crescentic fold surrounding the fleshy pad (Fig. 2). Other diagnostic characters include: ventral margin of rostral cap unfringed, upper lip regresses to form a row of thin, tiny lobes adnated to upper jaw, the posterior margin of lower jaw connected the anterior part of lower lip, lower lip well developed, variable papillae scattered on rostral cap and lower lip, the anterior margin of upper and lower jaws born flexible, cornified sheath, two pairs of barbels, pharyngeal teeth in 3 rows, and dorsal fin with eight branched rays (Ref. 95674).

Biology     Glossary (e.g. epibenthic)

Inhabits underground caves connected to the surface river in the Karst area. Remains in the underground caves in the dry season and swims upward into the rivers during the flood season (Ref. 95674).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

Huang, Y., J. Yang and X. Chen, 2014. Sternorynchoacrum xijiangensis, a new genus and a new species of Labeoninae fish from Guangxi, China (Teleostei: Cyprinidae). Zootaxa 3793(3):379-386. (Ref. 95674)

IUCN Red List Status (Ref. 130435)


CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

FAO - Publication: search | FishSource |

More information

Countries
FAO areas
Ecosystems
Occurrences
Introductions
Stocks
Ecology
Diet
Food items
Food consumption
Ration
Common names
Synonyms
Metabolism
Predators
Ecotoxicology
Reproduction
Maturity
Spawning
Spawning aggregation
Fecundity
Eggs
Egg development
Age/Size
Growth
Length-weight
Length-length
Length-frequencies
Morphometrics
Morphology
Larvae
Larval dynamics
Recruitment
Abundance
BRUVS
References
Aquaculture
Aquaculture profile
Strains
Genetics
Electrophoreses
Heritability
Diseases
Processing
Nutrients
Mass conversion
Collaborators
Pictures
Stamps, Coins Misc.
Sounds
Ciguatera
Speed
Swim. type
Gill area
Otoliths
Brains
Vision

Tools

Special reports

Download XML

Internet sources

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: genus, species | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: genome, nucleotide | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Tree of Life | Wikipedia: Go, Search | World Records Freshwater Fishing | Zoobank | Zoological Record

Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 1.0000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00955 (0.00451 - 0.02020), b=3.04 (2.86 - 3.22), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Resilience (Ref. 120179):  High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100).