Classification / Names
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopteri (ray-finned fishes) > Anguilliformes
(Eels and morays) > Synaphobranchidae
(Cutthroat eels) > Ilyophinae
Etymology: Dysomma: Greek, dys, dyo = two + Greek, omma = eye; taiwanense: Named for its type locality, Taiwan.
Environment: milieu / climate zone / depth range / distribution range
Marine; demersal; depth range 200 - 400 m (Ref. 106136). Tropical
Western Pacific: Taiwan.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 49.6 cm TL male/unsexed; (Ref. 106136)
Morphology | Morphometrics
Vertebrae: 137 - 139. This species is distinguished by the following characters: with pectoral fin; dorsal-fin origin slightly in front of level of pectoral-fin base; anus is well behind tip of pectoral fin; very short trunk; 2 intermaxillary teeth; 4 compound teeth on vomer; single row of 7-10 large compound teeth on lower jaw; head pores: IO 4, SO 3, M 6, POP 0, AD 1, F 0, ST 0; lateral-line pores: predorsal 4-5, prepectoral 5-7, preanal 9-12, total 40-48, he last to about half of total length; vertebrae: predorsal 9-10, preanal 13-17, total 137-139; MVF 9-15-138; colour of body uniformly brownish, with the lower part of posterior one-eighth of body darker, with black base and margin on rear part of anal fin and lower part of caudal fin (Ref. 106136).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Ho, H.-C., D.G. Smith and K.A. Tighe, 2015. Review of the arrowtooth eel genera Dysomma and Dysommina in Taiwan, with the description of a new species (Anguilliformes: Synaphobranchidae: Ilyophinae). Zootaxa 4060(1):86-104. (Ref. 106136)
IUCN Red List Status (Ref. 123251)
CITES (Ref. 123416)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82805
= 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
Trophic level (Ref. 69278
): 3.9 ±0.4 se; based on size and trophs of closest relatives
Vulnerability (Ref. 59153
): Low to moderate vulnerability (25 of 100) .