Etmopterus granulosus

(GÜNTHER, 1880)


Southern lanternshark
Classification: Elasmobranchii Squaliformes Etmopteridae

Reference of the original description
GÜNTHER, A. (1880)
Report on the shore fishes procured during the voyage of H. M. S. Challenger in the years 1873-1876. Report on the shore fishes procured during the voyage of H. M. S. Challenger in the years 1873-1876, 1 (6): 1-82, Pls. 1-32.

Image of the original description

Etmopterus granulosus (GÜNTHER, 1880)

Synonyms / new combinations and misspellings
Centroscyllium granulosum, Centroscyllium granulosus, Etmopterus baxteri, Etmopterus cf. granulosus, Spinax granulosus

Types
Etmopterus granulosus
Holotype: BMNH: 1879.5.14.460
Etmopterus baxteri
Holotype: NMNZ: P01950;


Description:


Citation: Etmopterus granulosus (GÜNTHER, 1880): In: Database of modern sharks, rays and chimaeras, www.shark-references.com, World Wide Web electronic publication, Version 07/2014

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Etmopterus granulosus (GÜNTHER, 1880), Chile © Nico Straube, Munich

Common names
spa Tollo lucero, spa Tollo negro narigón, fra \(T\) Sagre long nez, fra \(T\) Sagre longnez, fra \(T\) Sagre porte-feu, eng Black shark, eng Lucifer, eng New Zealand lanternshark, eng Seal shark, eng Southern lantern shark, eng Southern lanternshark, eng Southern laternshark, eng Stout deepsea shark

Short Description
A large, heavy-bodied lanternshark with a big head [536], bladelike unicuspidate teeth in lower jaw and teeth with cusps and cusplets in upper jaw, stocky body, conspicuous lines of denticles on body, conspicuous black markings on underside of body and tail, with tail marking short and not extending far posteriorly [518]. Dark brown or black in color, possibly darker below [578].

Distribution
Southeast Pacific and Southwest Atlantic: southern Chile, southern Argentina, and the Falkland Islands Reported from off the western Cape coast but the identity of South African specimens is questionable (the correct name may be Etmopterus baxteri Garrick, 1957). Presence in the Western Pacific uncertain [544]. Eastern hemisphere records doubtful (Compagno 1999, pers. comm.).

Human uses
fisheries: of no interest

Biology
Ovoviviparous, with 10-13 in a litter [1388]. Size at birth about 18 cm [1388]. Distinct pairing with embrace [17086]. Found on the continental slope (Ref. 75154).

Size / Weight / Age
60.0 cm TL (male/unsexed; [536])

Habitat
bathydemersal; marine; depth range 220 - 1620 m (Ref. 44037)

Dentition
Teeth of Etmopterus baxteri (synonym of E. granulosus): Teeth 14-1-14/25-27, dissimilar in the two jaws. The upper teeth erect, each with a long, sharply-pointed, awl-shaped, smooth-edged major cusp flanked on each side by up to four small lesser cusps, and borne on a longitudinally-striated bifid base. Most of the upper teeth have three lesser cusps on each side of the major cusp, with the middle cusp of these three considerably larger than the others though not more than one-third the length of the major cusp. A few teeth near the centre of the jaw have four lesser cusps on each side, with the largest lesser cusp separated from the major cusp by two small lesser cusps, while in the teeth towards the angle of the jaw there is a reduction in the number of lesser cusps to one or two on each side. Three series of upper teeth functional at the centre of the jaw, two towards the angles. The lower teeth blade-like, each with a smooth, little-sculptured, rectangular base almost twice as high as broad, and bearing a single, smooth-edged, triangular cusp. Each cusp is sharply notched laterally, strongly oblique, and overlaps the adjacent cusp so that an almost continuous cutting edge is formed. There is no median tooth, and the base of the first tooth on the left side overlaps that of the first tooth on the right. A single series of lower teeth functional [2751];

Parasites (arranged by Jürgen Pollerspöck)
Cestoda
Copepoda
Thecostraca