Encheliophis homei, Silver pearlfish

Encheliophis homei (Richardson, 1846)

Silver pearlfish
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Encheliophis homei   AquaMaps   Data sources: GBIF OBIS
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Encheliophis homei
Picture by Tonozuka, T.

Classification / Names Nomi Comuni | Sinonimi | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterigi (pesci con pinne raggiate) > Ophidiiformes (Cusk eels) > Carapidae (Pearlfishes) > Carapinae
Etymology: Encheliophis: Greek, enchelys, = eel + Greek, ophis = serpent (Ref. 45335).  More on author: Richardson.

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

; marino associati a barriera corallina; non migratori; distribuzione batimetrica 0 - 30 m (Ref. 37816).   Tropical; 25°N - 35°S

Distribuzione Stati | Aree FAO | Ecosystems | Presenze | Point map | Introduzioni | Faunafri

Indo-Pacific: Red Sea and the east coast of Africa (Ref. 583) to the Society Islands (Ref. 9710), as far north as Taiwan, but not Hawaii, and probably south to Tasmania.

Size / Peso / Age

Maturity: Lm ?  range ? - ? cm
Max length : 19.0 cm TL maschio/sesso non determinato; (Ref. 6347)

Short description Morfologia | Morfometria

Raggi dorsali molli (totale): 33-38; Raggi anali molli: 53 - 61; Vertebre: 116 - 128. Eel-like, moderate to shallow body depth; maxilla free and movable; cardiform teeth present; branchiostegal membranes partly or completely united; swim bladder with thin terminal membrane or bulb; lacking enlarged dentary or premaxillary fangs, dentary diastema, pelvic fins, and swim bladder rocker bone (Ref. 34024).

Biologia     Glossario (es. epibenthic)

This uncommon (Ref. 34024) pearlfish inhabits the coelom and respiratory trees of some holothurians, especially Stichopus chloronotus and Holothuria argus. It is apparently in competition with Jordanicus gracilis [= Encheliophis gracilis] for its preferred host H. argus. Although most occur singly, there is a tendency towards sexual pairing inside the host. Found to depths over 30 m (Ref. 9710). Stomach contents which include amphipod, shrimp and fish indicate non-parasitic, foraging habits (Ref. 6395). Leaves host at night to prey on small fishes and shrimps (Ref 90102).

Life cycle and mating behavior Maturità | Riproduzione | Deposizione | Uova | Fecundity | Larve

Main reference Upload your references | Bibliografia | Coordinatore | Collaboratori

Nielsen, J.G., D.M. Cohen, D.F. Markle and C.R. Robins, 1999. Ophidiiform fishes of the world (Order Ophidiiformes). An annotated and illustrated catalogue of pearlfishes, cusk-eels, brotulas and other ophidiiform fishes known to date. FAO Fish. Synop. 125(18):178p. Rome: FAO. (Ref. 34024)

IUCN Red List Status (Ref. 120744)


CITES (Ref. 118484)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

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Estimates based on models

Preferred temperature (Ref. 115969): 25.3 - 29.3, mean 28.5 (based on 3175 cells).
Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5078   [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).
Trophic Level (Ref. 69278):  3.7   ±0.63 se; Based on food items.
Resilienza (Ref. 120179):  .
Vulnerability (Ref. 59153):  Low vulnerability (10 of 100) .