Lestidium nigrirostrum

Taxonavigation

Taxonavigation: Alepisauroidei

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: Osteoglossocephalai Supercohors: Clupeocephala Cohors: Euteleosteomorpha Subcohors: Neoteleostei Infracohors: Eurypterygia Section: Aulopa Ordo: Aulopiformes Subordo: Alepisauroidei

Familia: Paralepididae
Tribe: Lestidiini
Genus: Lestidium
Species: Lestidium nigrirostrum

Name

Lestidium nigrirostrum H.-C. Ho, K. Graham & B. Russell, 2020

Etymology: The specific name is derived from Latin niger and rostrum, in referring to the black snout.

Diagnosis: A species in the Lestidium prolixum species complex with a complete lateral-line, and a simple luminescent duct originating below opercle; it can be further distinguished from two other congeners in the species complex in having 31‒34 anal-fin rays; prehaemal vertebrae 35–38 and total vertebrae 87–90; lateral-line ended at caudal fin base, with 142–157 scales; DFO clearly behind tip of adpressed pelvic fin, V–D 5.6–8.5%SL and 28.6–38.6%V–A; 5‒7 lateral-line scales and 4‒7 vertebrae between VFO and DFO; dorsum dark brownish, melanophores extending downward to the lateral-line along its entire upper margin; anterior portions of snout and lower jaw blackish; abdomen with a very broad black sub-margin.