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Teleostei (teleosts) > Pleuronectiformes (Flatfishes) > Cynoglossidae (Tonguefishes) > Symphurinae
Etymology: Symphurus: Greek, syn, symphysis = grown together + Greek, oura = tail (Ref. 45335).
More on author: Hubbs.

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

Marine; bathydemersal; depth range 390 - 815 m (Ref. 35979). Deep-water

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Northwest Pacific: probably endemic to deep waters off the southern Japanese Archipelago.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 12.2 cm SL male/unsexed; (Ref. 35979)

Short description Identification keys | Morphology | Morphometrics

Dorsal spines (total): 0; Dorsal soft rays (total): 111 - 113; Anal spines: 0; Anal soft rays: 95; Vertebrae: 59. Distinguished from congeners by having 1-2-3 interdigitation pattern (ID) of proximal dorsal pterygiophores and interneural spines; 10 abdominal vertebrae; 14 caudal-fin rays; 105-106 scales in longitudinal series; a pigmented blind side nearly as dark as the ocular surface; and black peritoneum (Ref. 35979).

Collected from sand or sand-mud bottom (Ref. 35979). Unpublished maximum depth given at 1040 m (in Ref. 127475).

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

Main reference Upload your references | References | Coordinator | Collaborators

Munroe, T.A. and K. Amaoka, 1998. Symphurus hondoensis Hubbs, 1915, a valid species of Western Pacific tonguefish (Pleuronectiformes: Cynoglossidae). Ichthyol. Res. 45(4):385-391. (Ref. 35979)

IUCN Red List Status (Ref. 130435: Version 2024-1)

Data deficient (DD) ; Date assessed: 15 October 2020

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

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Estimates based on models

Preferred temperature (Ref. 123201): 7.1 - 11.3, mean 8.5 °C (based on 22 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.01072 (0.00507 - 0.02267), b=3.11 (2.92 - 3.30), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.3 ±0.4 se; based on size and trophs of closest relatives

Resilience (Ref. 120179): Medium, minimum population doubling time 1.4 - 4.4 years (Assuming tmax>3).

Fishing Vulnerability (Ref. 59153): Low vulnerability (10 of 100).

Symphurus hondoensis Hubbs, 1915