SEYCHELLES SPURDOG

Little known spurdog of Seychelles

The Seychelles spurdog (Squalus lalannei) is a dogfish belonging to the family Squalidae. It was first described by Baranes, A. in 2003. These are his descriptions. It is found off the Republic of Seychelles.

 

Family: Squalidae – Dogfish Sharks

Genus: Squalus

Species: lalannei

Taxonomy:

Phylum– Chordata

Class– Chondrichthyles

SubclassElasmobranchii

OrderSqualiformes

Common NameDogfish Sharks

Family– Squalidae

Common NameDogfish Sharks

GenusSqualus

Specieslalannei

Status: IUCN Red List DATA DEFICIENT

Average Size and Length: The only known female is measured at 2.6 feet and the only male at 2 feet.  

Head: There is only one developed lobe at the anterior part of nostril flap. The nostrils’ inner corner sits at about midway between tip of snout and the upper lip.

Demographic, Distribution, Habitat, Environment and Range: The only two known specimens were collected at 3,281 feet off Alphonse Island, Republic of Seychelles in the Western Indian Ocean. They are tropical bathydemersal.

Aesthetic Identification: The Seychelles spurdog is uniformly grey with blackish dorsal fins. There is a rounded free rear tip of the pectoral fins.

Biology and Reproduction: The Seychelles spurdog has a low number of precaudal vertebrae (67-69). They are more than likely ovoviviparous.

Behavioral Traits, Sensing and Intelligence: Unknown.

Seychelles Spurdog Future and Conservation: Not enough data to evaluate.

Seychelles Spurdog Recorded Attacks on Humans: Not a threat to humans.