Overview

Bythaelurus vivaldii is a poorly documented catshark from Somali waters in the western Indian Ocean, with a conservation assessment of data deficient. A catshark in the family Scyliorhinidae and order Carcharhiniformes. Known from the western Indian Ocean off Somalia.

Most species are bottom-associated and favor reefs, soft-bottom shelves, canyons, or upper-slope terrain. Habitat varies substantially by genus.

Why it matters: Many catshark egg cases are the classic 'mermaid's purses' washed ashore after hatching.

Common nameBythaelurus Vivaldii
Scientific nameBythaelurus vivaldii
FamilyScyliorhinidae
OrderCarcharhiniformes
Max length0.3 m
ConservationData deficient (DD)
RegionWestern Indian Ocean: Off Somalia

What this shark is

A catshark in the family Scyliorhinidae and order Carcharhiniformes.

Where it lives

Known from the western Indian Ocean off Somalia.

Most species are bottom-associated and favor reefs, soft-bottom shelves, canyons, or upper-slope terrain. Habitat varies substantially by genus.

How it differs from similar sharks

Compare it against Arabian catshark, Bythaelurus Bachi, and Dusky catshark.

Why it is notable

They are usually harmless and seldom noticed outside trawls, research catches, aquaria, or night dives.

Many catsharks are cryptic and nocturnal, resting by day and foraging slowly over the bottom after dark.

Related shark pages

These links are meant to help readers continue through related species, not force extra clicks.

Generated editorial rendering of Bythaelurus alcockii using the PocketShark reference-assisted workflow, guided by genus-level Bythaelurus reference art; not to scale.
Bythaelurus alcockii

Arabian catshark

Common name: Bythaelurus Alcockii

Bythaelurus alcockii

0.3 m maxData deficient (DD)
Generated editorial rendering of Bythaelurus bachi using the PocketShark reference-assisted workflow, guided by genus-level Bythaelurus reference art; not to scale.
Bythaelurus bachi

Bythaelurus Bachi

Bythaelurus bachi from Walters Shoals

0.4 m maxData Deficient (DD)
Dusky catshark scientific illustration showing the elongated body and low dorsal fins; not to scale.
Bythaelurus canescens

Dusky catshark

Common name: Bythaelurus Canescens

Bythaelurus canescens

0.7 m maxVulnerable (VU)
Cleva's catshark specimen photograph showing the tapered body and long tail; not to scale.
Bythaelurus clevai

Broadhead cat shark

Common name: Bythaelurus Clevai

Cleva's catshark

0.4 m maxData deficient (DD)