Etmopterus evansi
Last, Burgess & Séret, 2002
Blackmouth lanternshark
Classification: Elasmobranchii Squaliformes Etmopteridae
Reference of the original description
Description of six new species of lantern-sharks of the genus Etmopterus (Squaloidea: Etmopteridae) from the Australasian region. Cybium, 26(3), 202–223
Description of six new species of lantern-sharks of the genus Etmopterus (Squaloidea: Etmopteridae) from the Australasian region. Cybium, 26(3), 202–223
Image of the original description
Image in copyright.
Image in copyright.
Types
Etmopterus evansi
Holotype: CSIRO: H 3141-16 ; Paratype: CSIRO: H 3158-17 ; CSIRO: H 3147-01 ; CSIRO: H 3143-02; CSIRO: H 1209-01; CSIRO: H 1207-04 ; CSIRO: H 3149-02 ; MNHN: 2002-0085 (old: CSIRO H 3158-16); MNHN: 2001-2815; MNHN: 2001-2814 ; MNHN: 2002-0086; MNHN: 2001-2816;
Etmopterus evansi
Holotype: CSIRO: H 3141-16 ; Paratype: CSIRO: H 3158-17 ; CSIRO: H 3147-01 ; CSIRO: H 3143-02; CSIRO: H 1209-01; CSIRO: H 1207-04 ; CSIRO: H 3149-02 ; MNHN: 2002-0085 (old: CSIRO H 3158-16); MNHN: 2001-2815; MNHN: 2001-2814 ; MNHN: 2002-0086; MNHN: 2001-2816;
Description :
Citation: Etmopterus evansi Last, Burgess & Séret, 2002: In: Database of modern sharks, rays and chimaeras, www.shark-references.com, World Wide Web electronic publication, Version 12/2024
Common names
Blackmouth lanternshark
Blackmouth lanternshark
Short Description
Body slender. Dorsal and ventral coloration strongly contrasted; dots and dashes absent on upper half; dark ventral saddle on posterior third of caudal peduncle; prominent dark bands at the tip and through mid caudal fin. Eyes rather narrow; upper eyelid with pale naked patch. Caudal peduncle elongate (18.9-21.8% TL). Denticles extremely dense, very thin, delicate, arranged in poorly defined longitudinal rows. Flank marking base under or slightly forward of second dorsal spine; its posterior branch barely reaching free rear tip of second dorsal fin; central caudal marking absent; finger of caudal base marking very long, more than 7% TL. Monospondylous centra 37-38 (Ref. 45056).
Body slender. Dorsal and ventral coloration strongly contrasted; dots and dashes absent on upper half; dark ventral saddle on posterior third of caudal peduncle; prominent dark bands at the tip and through mid caudal fin. Eyes rather narrow; upper eyelid with pale naked patch. Caudal peduncle elongate (18.9-21.8% TL). Denticles extremely dense, very thin, delicate, arranged in poorly defined longitudinal rows. Flank marking base under or slightly forward of second dorsal spine; its posterior branch barely reaching free rear tip of second dorsal fin; central caudal marking absent; finger of caudal base marking very long, more than 7% TL. Monospondylous centra 37-38 (Ref. 45056).
Distribution
Eastern Indian Ocean: Western Australia and Arafura Sea.
Eastern Indian Ocean: Western Australia and Arafura Sea.
Dentition
Description: Three series of functional teeth in upper jaw, one series in lower; teeth dissimilar in upper and lower jaws; upper teeth small, erect, multicuspid; usually with 5 cusps in both sexes (occasionally with 3 cusps in symphysis); outer cusps sometimes obscure; middle and outer cusps slightly oblique to central cusp; central cusp and middle pair similar in shape, rather broad based, middle pair about half height of central cusps, about three times length of lateral pair; lower teeth unicuspid, interlocking, blade-like, extremely oblique lower margin very short [1384];
Description: Three series of functional teeth in upper jaw, one series in lower; teeth dissimilar in upper and lower jaws; upper teeth small, erect, multicuspid; usually with 5 cusps in both sexes (occasionally with 3 cusps in symphysis); outer cusps sometimes obscure; middle and outer cusps slightly oblique to central cusp; central cusp and middle pair similar in shape, rather broad based, middle pair about half height of central cusps, about three times length of lateral pair; lower teeth unicuspid, interlocking, blade-like, extremely oblique lower margin very short [1384];
Remarks
shark-references Species-ID=2170;
shark-references Species-ID=2170;