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Mordacia lapicida (Gray, 1851)

Chilean lamprey
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Mordacia lapicida
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Classification / Names Noms communs | Synonymes | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Céphalaspidomorphes (lamproies) (lampreys) > Petromyzontiformes (Lampreys) > Mordaciidae (Southern topeyed lampreys)
Etymology: Mordacia: Latin, mordax, -acis = someone that bites.  More on author: Gray.

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

; marin; eau douce; saumâtre démersal; anadrome (Ref. 89241).   Subtropical; 34°S - 64°S (Ref. 26213)

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

Southeast Pacific: Rivers of southern Chile.

Taille / Poids / Âge

Maturity: Lm ?  range ? - ? cm
Max length : 54.0 cm TL mâle / non sexé; (Ref. 89241)

Description synthétique Morphologie | Morphométrie

Adult: 11.1-54.0 cm TL; body proportions, as percentage of TL (based on 39 specimens measuring 11.1-31.3 cm TL): 8.0-17.0 prebranchial length, 8.3-12.1 branchial length, 57.8-77.1 trunk length and 13.8-19.0 tail length. Mature males with large gular pouch that extends from immediately posterior of oral disc to end of branchial region; trunk myomeres, 78-84; dentition: supraoral lamina, 2 triangular supraoral laminae each with three unicuspid teeth, one per apex; infraoral lamina, 9-13 unicuspid teeth of various size in immature individuals and divided into 3 tricuspid plates with, in each case, the median cusp largest in spawning individuals; 7 endolateral plates on either side each bearing 3-5 unicuspid teeth (in prespawning individuals, usually 4-5); endolateral formula, typically 3-3-4-4-4-4-3 or 4-4-4-5-5-4-3 or 5 endolaterals as individual unicuspid teeth on either side in spawning individuals; 1-2 rows of anterials; first row of anterials consisting of 4 tricuspid radial plates in recently transformed individuals, of 2 tricuspid flanked on either side by 1 quadricuspid radial plate in feeding phase individuals and of 6 unicuspid teeth in spawning individuals; 1 row of exolaterals on each side; 1 row of posterials; first row of posterials, 10-12 tricuspid (sometimes quadricuspid) plates in prespawning individuals and 12 unicuspid teeth in spawning individuals; transverse lingual lamina, w-shaped, with numerous unicuspid teeth in prespawning individuals and with only 2 greatly enlarged lateral unicuspid teeth in spawning individuals; longitudinal lingual laminae, each with 9-15 unicuspid teeth; presence of caudal fin pigmentation but extent of coverage not determined; caudal fin shape, spade-like (Ref. 89241).

Biologie     Glossaire (ex. epibenthic)

Ammocoetes and adults found in rivers. Ammocoetes occur in substrates of fine sand with abundant organic detritus along the river banks. Metamorphosis occurs between August and March and recently metamorphosed adults enter marine waters during austral winter (June-August) at about 14.3 cm TL. Anadromous. Adults parasitic on fishes in marine waters. Mature adults occur in continental marine waters between September and December (Ref. 89241).

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

Référence principale Upload your references | Références | Coordinateur | Collaborateurs

Kullander, S.O. and B. Fernholm, 2003. Geotriidae (Southern lampreys). p. 11-12. In R.E. Reis, S.O. Kullander and C.J. Ferraris, Jr. (eds.) Checklist of the Freshwater Fishes of South and Central America. Porto Alegre: EDIPUCRS, Brasil. (Ref. 39873)

Statut dans la liste rouge de l'IUCN (Ref. 119314)

  Données manquantes (DD) ; Date assessed: 01 August 1996

CITES (Ref. 115941)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Menace pour l'homme






Utilisations par l'homme

Pêcheries: sans intérêt
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Sources Internet

Aquatic Commons | BHL | Cloffa | Websites from users | FishWatcher | CISTI | Catalog of Fishes (gen., sp.) | DiscoverLife | ECOTOX | Faunafri | Fishtrace | GenBank(génôme, nucléotide) | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | SeaLifeBase | Arbre de Vie | Wikipedia(aller à, chercher) | World Records Freshwater Fishing | Zoological Record

Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.7500   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00102 (0.00046 - 0.00225), b=3.06 (2.88 - 3.24), in cm Total Length, based on all LWR estimates for this body shape (Ref. 93245).
Niveau trophique (Ref. 69278):  4.4   ±0.8 se; Based on size and trophs of closest relatives
Résilience (Ref. 69278):  .
Vulnérabilité (Ref. 59153):  Low to moderate vulnerability (31 of 100) .