Etmopterus samadiae

White, Ebert, Mana & Corrigan, 2017

Classification: Elasmobranchii Squaliformes Etmopteridae

Reference of the original description
White, W.T. & Ebert, D.A. & Mana, R.R. & Corrigan, S. (2017)
Etmopterus samadiae n. sp., a new lanternshark (Squaliformes: Etmopteridae) from Papua New Guinea. Zootaxa, 4244(3), 339–354

Etmopterus samadiae
Holotype: NTUM: 10078; Paratype: ASIZ: P.73777; ASIZ: P.73778; ASIZ: P.73765; NTUM: 10313; NTUM: 10314; NTUM: 10315; NTUM: 10316;

Images of types

Description :

Citation: Etmopterus samadiae White, Ebert, Mana & Corrigan, 2017: In: Database of modern sharks, rays and chimaeras,, World Wide Web electronic publication, Version 07/2024

Please send your images of "Etmopterus samadiae" to

Etmopterus samadiae White, Ebert, Mana & Corrigan, 2017, lateral view, holotype, adult male (NTUM 10078, 265 mm TL), (A) fresh; (B) post-preservation © White & Ebert & Mana, CORRIGAN, 2017
Common names
eng Papuan Lanternshark

Short Description
Original Diagnosis of WHITE & EBERT & MANA, CORRIGAN, 2017 [25174]: Etmopterus samadiae is a relatively small, slender, species of linear–denticled Etmopterus that can be separated from its closest congeners within the E. lucifer clade by a combination of characteristics including the length of its anterior flank markings being slightly shorter than its posterior branch, long caudal base marking, and irregular and variable number of black, horizontal, dash-like marks on sides of body. The new species is morphologically and genetically (based on the NADH2 marker) closest to E. brachyurus, but differs from this species in having a shorter posterior caudal marking (2.8–4.4 vs. 4.2–6.1% TL), a longer caudal base marking (10.6–14.1 vs. 7.0–7.8% TL), and flank marking with a slightly shorter posterior branch (9.1–11.2 vs. 11.4–12.6% TL).

off the northern Papua New Guinea mainland, from west of Kairiru Island in East Sepik Province to off Lae in the Huon Gulf (Morobe Province) [25174]

Size / Weight / Age
154 to 277 mm TL [25174]

marine; depth range 340 to 785 m [25174]

Teeth dissimilar in upper and lower jaw (Fig. 4); upper teeth multicuspid in three functional series, functional teeth in lower jaw unicuspid in single series; multicuspid upper teeth small, upright, with strong central cusp flanked by 2 or 3 lateral cusplets on each side, decreasing in size distally; teeth in lower jaw fused into single row, blade-like, cusp oblique. Tooth count in first row of upper jaw 33 (27–28) and in first row of lower jaw 35 (28–31) [25174]

shark-references Species-ID=14870;