Dysomma opisthoproctus

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Dysomma opisthoproctus Chen & Mok, 1995

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Dysomma opisthoproctus   AquaMaps   Data sources: GBIF OBIS
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drawing shows typical species in Synaphobranchidae.

Classification / Names Populärnamn | synonymer | Catalog of Fishes(Släkte, Arter) | ITIS | CoL | WoRMS | Cloffa

> Anguilliformes (Eels and morays) > Synaphobranchidae (Cutthroat eels) > Ilyophinae
Etymology: Dysomma: Greek, dys, dyo = two + Greek, omma = eye;  opisthoproctus: Species name refers to its posterior positioned anus (Ref. 31561).

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

; marina bottenlevande; djupintervall ? - 200 m (Ref. 31561).   Subtropical

Utbredning Länder | FAO områden | Ekosystem | Förekomster | Point map | Utplanteringar | Faunafri

Northwest Pacific: known only from Nan-Fong-Ao, northeastern Taiwan.

Size / Vikt / Age

Maturity: Lm ?  range ? - ? cm
Max length : 42.1 cm TL hane/ej könsbestämd; (Ref. 31561)

Short description Morfologi | Morfometri

Ryggkotor: 120. This species is distinguished by the following characters: with pectoral fin; dorsal-fin origin is in front of level of pectoral-fin base, predorsal length 10.6% TL; anus is posterior and far behind tip of pectoral fin, preanal length 35.1% TL; trunk is very long, trunk length 20.2% TL; intermaxillary teeth 2; compound teeth on vomer 4; multiple rows of small teeth on the upper jaw; a row of 7 or 8 large compound teeth on lower jaw; head pores: IO 4, SO 3, M 7, POP 0, AD 1; lateral-line pores: prepectoral 6, preanal 24, lateral line runs to more than 2 head length before caudal fin; 25 preanal vertebrae, 120 total vertebrae; colour of body brownish dorsally and paler ventrally with lower part of posterior margin of anal fin and caudal fin black (Ref. 31561).

Biologi     Ordlista (t.ex. epibenthic)

Maximum depth reported based on a single specimen (Ref. 31561). Minimum depth from Ref. 58018.

Life cycle and mating behavior Könsmognad | Reproduktion | Lek | Ägg | Fecundity | Larver

Main reference Upload your references | referenser | Koordinator | Medarbetare

Chen, Y.Y. and H.K. Mok, 1995. Dysomma opisthoproctus, a new synaphobranchid eel (Pisces: synaphobranchidae) from the northeastern coast of Taiwan. Copeia 1995(4):927-931. (Ref. 31561)

IUCN Red List Status (Ref. 123251)


CITES (Ref. 123416)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

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Ytterligare information

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Ekosystem
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Estimates based on models

Preferred temperature (Ref. 115969): 19.4 - 23.7, mean 21.7 °C (based on 40 cells).
Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5001   [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).
Trofisk nivå (Ref. 69278):  3.9   ±0.4 se; based on size and trophs of closest relatives
Resiliens (Ref. 120179):  .
Vulnerability (Ref. 59153):  Low vulnerability (22 of 100) .