Longsnout dogfish

Deania quadrispinosa

Sharks and rays
IUCN: Vulnerable

Usual depth390–953 m
Water temperature9–29 °C
Best monthsJuly, August, and October
How commonOccasional

About this species

The longsnout dogfish is a little-known deepwater dogfish, found in the Atlantic and Indian Oceans from Namibia to Mozambique and in the South Pacific off southern Australia and New Zealand.

Text from the Wikipedia article “Longsnout dogfish”, licensed CC BY-SA 4.0. Read the article

Where and when

Where it has been recorded

Worldwide

Loading the map

Best months

Worldwide (open data)

January: 3 records
February: 5 records
March: 25 records
April: 23 records
May: 34 records
June: 31 records
July: 47 records
August: 48 records
September: 33 records
October: 46 records
November: 37 records
December: 29 records

Depth and water temperature

Depth

Mostly recorded at 390–953 m · Deepest record: 1,245.5 m

100–110 m: 1 records
110–120 m: 0 records
120–130 m: 0 records
130–140 m: 0 records
140–150 m: 0 records
150–160 m: 0 records
160–170 m: 0 records
170–180 m: 0 records
180–190 m: 0 records
190–200 m: 1 records
200–210 m: 0 records
210+ m: 491 records

Water temperature

Recorded in surface water of 9–29 °C

8–10 °C: 3 records
10–12 °C: 40 records
12–14 °C: 89 records
14–16 °C: 24 records
16–18 °C: 39 records
18–20 °C: 153 records
20–22 °C: 132 records
22–24 °C: 25 records
24–26 °C: 20 records
26–28 °C: 11 records
28–30 °C: 1 records

Names and classification

English: Longsnout dogfish, longsnout dogfish

Names in 2 more languages

Spanish: Tollo Trompalarga
French: Squale-savate à long nez

Other scientific names: Acanthidium quadrispinosum, Deania quadrispinosum, Deania quadrispinosus

Similar species

Birdbeak Dogfish
Deania calceus
Arrowhead dogfish
Deania profundorum
Rough longnose dogfish
Deania hystricosa
Little gulper shark
Centrophorus uyato
Gulper shark
Centrophorus granulosus
Dumb gulper shark
Centrophorus harrissoni

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).
566 open-data records from 1914 to 2016.
Species data updated November 2, 2026.

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