Dysomma brachygnathos

Taxonavigation

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 brachygnathos

Name

Dysomma brachygnathos H.-C. Ho * K. A. Tighe, 2018

• Holotype: USNM 444742.

• Type locality: Dong-gang fishing port, Pingtung, southwestern Taiwan, northern South China Sea, depth about 200-300 meters.

• Diagnosis. Pectoral fin absent; dorsal-fin origin slightly in front of gill opening; trunk very short; lower jaw short, not covering intermaxillary teeth or first vomerine tooth when closed. Lateral-line pores: predorsal 3, preanal 9, and total 23–32. Vertebrae: predorsal 8, preanal 15–16, total 131+–136. Dentition: 2 compound intermaxillary teeth; 3–5 compound teeth on vomer; single row of compound teeth on lower jaw; maxillary teeth in 2‒3 irregular rows. Body uniformly tannish to brownish, lower part of posterior parts of anal-fin and lower part of caudal fin darker.

• Etymology. The specific name is derived from the Greek, brachys, short and gnathos, jaw, in reference to the relatively short lower jaw found in this species, to be treated as a noun in apposition.