Knife-snouted Pipefish
Hypselognathus rostratus
- Usual depth1–4 m
- Water temperature15–18 °C
- Best monthsOctober and November
- How commonRare
About this species
Hypselognathus rostratus, also known as the knife-snouted pipefish, is a species of marine fish belonging to the family Syngnathidae. This species can be found in very shallow coastal waters of southeastern Australia. Their habitat consists of sandy substrates, seagrass beds, and estuaries. Reproduction occurs through ovoviviparity in which the males brood eggs before giving live birth.
Text from the Wikipedia article “Hypselognathus rostratus”, 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: 7 records
- February: 6 records
- March: 3 records
- April: 1 records
- May: 2 records
- June: 0 records
- July: 2 records
- August: 6 records
- September: 17 records
- October: 34 records
- November: 31 records
- December: 12 records
Depth and water temperature
Depth
Mostly recorded at 1–4 m · Deepest record: 6.5 m
Water temperature
Recorded in surface water of 15–18 °C
Names and classification
- English
- Knife-snouted Pipefish, Knife-snout Pipefish, Knifesnout Pipefish
Names in 1 more languages
- Simplified Chinese
- 管吻海龍, 管吻海龙
Other scientific names: Histiogamphelus rostratus
Similar species
- Prickly Pipefish
Hypselognathus horridus
Banded PipefishCorythoichthys flavofasciatus
Bloodspot PipefishCorythoichthys haematopterus
Banded pipefishCorythoichthys intestinalis
Bluestripe pipefishDoryrhamphus excisus
Banded PipefishDunckerocampus dactyliophorus
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).
- 122 open-data records from 1920 to 2015.
- Species data updated November 3, 2026.
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