Dysomma taiwanensis

Taxonavigation: Synaphobranchoidei

Superregnum: Eukaryota Cladus: Unikonta Cladus: Opisthokonta Cladus: Holozoa Regnum: Animalia Subregnum: Eumetazoa Cladus: Bilateria Cladus: Nephrozoa Superphylum: Deuterostomia Phylum: Chordata Subphylum: Vertebrata Infraphylum: Gnathostomata Megaclassis: Osteichthyes Superclassis/Classis: Actinopterygii Classis/Subclassis: Actinopteri Subclassis/Infraclassis: Neopterygii Infraclassis: Teleostei Megacohors: Elopocephalai Supercohors: Elopocephala Cohors/Superordo: Elopomorpha Ordo: Anguilliformes Subordo: Synaphobranchoidei

Familia: Synaphobranchidae
Subfamilia: Ilyophinae
Genus: Dysomma

Species: Dysomma taiwanensis

Name

Dysomma taiwanensis H.-C. Ho, D. G. Smith & K. A. Tighe, 2015

• Holotype: NMMB P11115. Paratypes: NMMB P 22194 (443); USNM 427172 (2).

• Type locality: Daxi, Yilan, NE Taiwan, northwestern Pacific, ca. 200–400 m depth.

• Diagnosis. Pectoral fin present; dorsal-fin origin slightly in front of level of pectoral-fin base; anus well behind tip of pectoral fin; trunk very short; two 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, the last to about half of total length. Vertebrae: predorsal 9–10, preanal 13–17, total 137–139; MVF 9-15-138. Body uniformly brownish, 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.

• Etymology: The specific name is derived from its type locality, Taiwan.

References

• Ho, H.-C., Smith, D.G. & Tighe, K.A. 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. DOI: 10.11646/zootaxa.4060.1.12. Preview (PDF) Full article (PDF) Reference page.