Scyliorhinus hachijoensis
The Cinder cloudy catshark (Scyliorhinus hachijoensis) is a small, nocturnal shark found in temperate coastal waters of Japan. It reaches just over 40 cm and is sought by niche anglers for its elusive, bottom‑dwelling habits rather than its size or table value.
Family
Scyliorhinidae
Max Size
41.6 cm
Habitat
marine
Climate
temperate
Best Season
Spring to early summer (April‑June)
Best Time
Nighttime, especially dusk to early night
No distribution map available
Hachijo Island
JapanA volcanic island south of Tokyo renowned for its deep surrounding waters where the Cinder cloudy catshark aggregates during its breeding season.
Best: April-October
Ogasawara (Bonin) Islands
JapanRemote archipelago with steep drop-offs and pristine reefs; a hotspot for night‑time shark dives targeting this species.
Best: May-September
Izu Peninsula
JapanCoastal kelp forests and rocky ledges provide accessible fishing grounds where catsharks are frequently caught from shore launches.
Best: June-September
El Nido, Palawan
PhilippinesClear tropical waters with deep channels attract occasional wandering Cinder cloudy catsharks, making it a coveted but low‑yield destination.
Best: November-February
Kenting National Park
TaiwanRocky outcrops and drop‑off zones off the southern tip of Taiwan host seasonal visits by the catshark during spring currents.
Best: March-May
Lifou, New Caledonia
New CaledoniaA bucket‑list location where the species is a rare trophy; deep reefs require advanced gear and experienced crews.
Best: October-December
Best bait: Live shrimp, small fish chunks, or squid strips