The Granular dogfish (Centroscyllium granulatum), is a little-known shark belonging to the family Etmopteridae, around the Falkland Islands. Original description below, Günther, 1887.
Family: Etmopteridae – Lantern Sharks
Genus: Centroscyllium
Species: granulatum
Phylum– Chordata
Class– Chondrichthyles
Subclass– Elasmobranchii
Common Name– Dogfish Sharks
Family– Etmopteridae
Common Name– Lantern Sharks
Genus– Centroscyllium
Species– granulatum
Status: IUCN Red List DATA DEFICIENT
Average Size and Length: Maximum recorded length has been 28 cm/11 inches.
Current Rare Mythical Sightings: Original description Günther, 1887. Holotype: British Museum (Natural History), BMNH 1887.12.7.2, 265 mm (11 inches or 279 mm, in original account) adult male. Type Locality: Port Stanley, Falkland Islands, 448 m depth.
Teeth and Jaw: The mouth is narrowly arche, and the teeth are comb-like in both jaws with narrow cusps and cusplets in upper and lower jaws.
Head: The preoral snout is moderately long, about 3/5 of the distance from the mouth to pectoral origins. The mouth is narrowly arched, nearly half as long as it is wide. They have prominent nostrils and spiracles and very large eyes that are much closer to the tip of the snout than the first gill slit.
Denticles: The dermal denticles are close and densely covered with sharp conical, hooked cusps.
Tail: The caudal peduncle is elongated.
Demographic, Distribution, Habitat, Environment and Range: The Granular Dogfiish has only been found in South America around north-central Chile, also around the Falkland Islands in the south Atlantic and around Malvinas Islands. They are found in deep water continental slopes between 1,312-1,470 feet.
Aesthetic Identification: The Granular dogfish has a very small, uniform brown black body. There are no conspicuous markings. The abdomen is long, but the body is stout and compressed. The first dorsal fin is low and much smaller than the second one. The first dorsal fin spine is short and the second one is large and extends over and behind the fin apex. They have small pectoral and pelvic fins and no anal fin.
Biology and Reproduction: They are presumably ovoviviparous.
Behavioral Traits, Sensing and Intelligence: Unknown.
Granular Dogfish Future and Conservation: Not enough data to evaluate, but it is on no interest to fisheries.
Granular Dogfish Recorded Attacks on Humans: Not a threat to humans.