DiscoverSpeciesSharks and rays
Roughskin dogfish
Cirrhigaleus asper
- Usual depth110–442 m
- Water temperature15–28 °C
- Best monthsMay and July
- How commonRare
Photo credit: (c) Ryan Watson, some rights reserved (CC BY) · CC BY · iNaturalist
About this species
The roughskin spurdog is a dogfish of the family Squalidae, found circumglobally between latitudes 35°N and 35°S, at depths of between 200 metres (660 ft) and 600 metres (2,000 ft). It reaches a length of 1.2 metres (3.9 ft).
Text from the Wikipedia article “Roughskin spurdog”, licensed CC BY-SA 4.0. Read the article
Where and when
Where it has been recorded
Worldwide
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Best months
Worldwide (open data)
- January: 1 records
- February: 0 records
- March: 1 records
- April: 0 records
- May: 5 records
- June: 2 records
- July: 4 records
- August: 1 records
- September: 1 records
- October: 0 records
- November: 0 records
- December: 1 records
Depth and water temperature
Depth
Mostly recorded at 110–442 m · Deepest record: 451 m
Water temperature
Recorded in surface water of 15–28 °C
Names and classification
- English
- Roughskin dogfish, Roughskin spurdog, roughskin dogfish, roughskin dogshark, Roughskin Spiny Dogfish, roughskin spurdog
Names in 3 more languages
- German
- Rauhaut-Dornhai
- Spanish
- cazón bagre, Galludo Raspa
- French
- Aiguillat à peau rugueuse
Other scientific names: Squalus asper
Similar species
Mandarin dogfishCirrhigaleus barbifer
- Mandarin Dogfish
Cirrhigaleus australis
Shortnose spurdogSqualus megalops
Sources and credits
Names and taxonomy: WoRMS (CC BY 4.0) and the GBIF Backbone (CC BY 4.0). Photos: iNaturalist observers, each under the licence shown (CC0, CC BY or CC BY-SA).
- Depth, temperature, months and maps: records from OBIS and GBIF under CC0 or CC BY.
- Descriptions: Wikipedia, licensed CC BY-SA, each linked to its article.
- Conservation status as published by GBIF (IUCN Red List).
- 39 open-data records from 1969 to 2010.
- Species data updated November 1, 2026.
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