Naked snout rattail

Haplomacrourus nudirostris

Fish
IUCN: Not evaluated

Usual depth690–1,137 m
Water temperature6–29 °C
Best monthsAugust, November, and December
How commonRare

About this species

Haplomacrourus nudirostris, the naked snout rattail, is a benthic species of rattail found in the southern oceans where it occurs on the continental slopes at depths of from 690 to 1,590 metres This species grows to a length of 57.5 centimetres (22.6 in) TL. It is the only species in the genus Haplomacrourus.

Text from the Wikipedia article “Haplomacrourus”, 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: 1 records
February: 0 records
March: 1 records
April: 5 records
May: 3 records
June: 3 records
July: 0 records
August: 6 records
September: 3 records
October: 2 records
November: 6 records
December: 8 records

Depth and water temperature

Depth

Mostly recorded at 690–1,137 m · Deepest record: 1,206 m

500–510 m: 1 records
510–520 m: 0 records
520–530 m: 0 records
530–540 m: 0 records
540–550 m: 0 records
550–560 m: 0 records
560–570 m: 0 records
570–580 m: 0 records
580–590 m: 0 records
590–600 m: 43 records

Water temperature

Recorded in surface water of 6–29 °C

4–6 °C: 1 records
6–8 °C: 0 records
8–10 °C: 0 records
10–12 °C: 0 records
12–14 °C: 5 records
14–16 °C: 5 records
16–18 °C: 6 records
18–20 °C: 5 records
20–22 °C: 15 records
22–24 °C: 6 records
24–26 °C: 3 records
26–28 °C: 3 records
28–30 °C: 4 records

Names and classification

English: Naked snout rattail, Nakedsnout Whiptail

Other scientific names: Haplomacrurus nudirostris

Similar species

Bollons' rattail
Coelorinchus bollonsi
Banded Whip-tail
Coelorinchus fasciatus
Innotable Whiptail
Coelorinchus innotabilis
Serrulate Rattail
Coryphaenoides serrulatus
Four-rayed Rattail
Coryphaenoides subserrulatus
deepsea whiptail
Lepidorhynchus denticulatus

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).
75 open-data records from 1980 to 2016.
Species data updated November 3, 2026.

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