Bellowsfishes, snipefishes, and razorfishes

The family Centriscidae contains a huge diversity of fishes — the bellowsfish, snipefishes, and razorfishes. All these species exhibit laterally flattened (compressed side-to-side) bodies, and have the same elongated snouts as the rest of their relatives. They often orient vertically in the water column, with their head down.

The bellowsfishes range from 15 to 35 cm depending on the species, and are found in tropical and subtropical waters worldwide. These fishes mostly inhabit the twilight zone (up to 1000 meters deep), and are found near the seafloor over continental shelves and oceanic ridges. Bellowsfishes are caught by deep-sea bottom trawlers, but for the most part, populations appear to be relatively unthreatened.

The snipefishes can grow up to 23 cm, and are present across the globe in tropical and subtropical waters. These fishes have been found as deep as 600 m, hanging in the water column or near the sea floor. They are often found in large schools, which can reach up to 100 meters tall, and several hundred meters wide. Snipefishes are often caught as bycatch in bottom trawls and utilized for fishmeal, but appear to be relatively unthreatened.

The razorfishes can reach up to 30 cm in the largest species, and are distributed throughout the Indo-Pacific. They are typically found over coral reefs, seagrasses, and soft substrates. Razorfishes are caught by hand or incidentally in trawls for use in aquaria or fishmeal. Generally, there is little known about these fishes and very few species have enough data to carry out an IUCN Red List assessment.

See the species profiles below to get to know these fishes better. 

Centriscops & Notopogon (Bellowsfishes)

Species

Range

IUCN
Red List Status

Learn more

mei tackeuchi -kuiter2009-armatus Solenostomus armatus Weber, 1913

English common names: Armoured ghost pipefish, Long-tailed ghost pipefish

Western Pacific

LC url GBIF INAT
 uwkwaj-inat-cyanopterus S. cyanopterus Bleeker, 1954

English common names:
Robust ghost pipefish, Blue-finned ghost pipefish, Racek’s ghost pipefish, Rough-snout ghost pipefish, Square-tail ghost pipefish

Indian & Western Pacific

LC url GBIF logo_eol
 uwkwaj-inat-halimeda S. halimeda Orr, Fritzsche & Randall, 2002

English common names:
Halimeda ghost pipefish
Indian & Western Pacific DD url GBIF logo_eol
 ajhg-inat-leptosoma S. leptosoma Tanaka, 1908

English common names:
Delicate ghost pipefish, Thin ghost pipefish
Indian & Western Pacific NE url GBIF logo_eol
 uwkwaj-inat-paegnius S. paegnius Jordan & Thompson, 1914

English common names:
Roughsnout ghost pipefish
Eastern Indian & Western Pacific NE url GBIF logo_eol
 ivan_neo_inat_paradoxus S. paradoxus (Pallas, 1770)

English common names:
Ornate ghost pipefish, Harlequin ghost pipefish
Indian & Western Pacific LC url GBIF logo_eol

Macroramphosus (Snipefishes)

Species

Range

IUCN
Red List Status

Learn more

mei tackeuchi -kuiter2009-armatus Solenostomus armatus Weber, 1913

English common names: Armoured ghost pipefish, Long-tailed ghost pipefish

Western Pacific

LC url GBIF INAT
 uwkwaj-inat-cyanopterus S. cyanopterus Bleeker, 1954

English common names:
Robust ghost pipefish, Blue-finned ghost pipefish, Racek’s ghost pipefish, Rough-snout ghost pipefish, Square-tail ghost pipefish

Indian & Western Pacific

LC url GBIF logo_eol
 uwkwaj-inat-halimeda S. halimeda Orr, Fritzsche & Randall, 2002

English common names:
Halimeda ghost pipefish
Indian & Western Pacific DD url GBIF logo_eol
 ajhg-inat-leptosoma S. leptosoma Tanaka, 1908

English common names:
Delicate ghost pipefish, Thin ghost pipefish
Indian & Western Pacific NE url GBIF logo_eol
 uwkwaj-inat-paegnius S. paegnius Jordan & Thompson, 1914

English common names:
Roughsnout ghost pipefish
Eastern Indian & Western Pacific NE url GBIF logo_eol
 ivan_neo_inat_paradoxus S. paradoxus (Pallas, 1770)

English common names:
Ornate ghost pipefish, Harlequin ghost pipefish
Indian & Western Pacific LC url GBIF logo_eol

Aeoliscus & Centriscus (Razorfishes)

Species

Range

IUCN
Red List Status

Learn more

mei tackeuchi -kuiter2009-armatus Solenostomus armatus Weber, 1913

English common names: Armoured ghost pipefish, Long-tailed ghost pipefish

Western Pacific

LC url GBIF INAT
 uwkwaj-inat-cyanopterus S. cyanopterus Bleeker, 1954

English common names:
Robust ghost pipefish, Blue-finned ghost pipefish, Racek’s ghost pipefish, Rough-snout ghost pipefish, Square-tail ghost pipefish

Indian & Western Pacific

LC url GBIF logo_eol
 uwkwaj-inat-halimeda S. halimeda Orr, Fritzsche & Randall, 2002

English common names:
Halimeda ghost pipefish
Indian & Western Pacific DD url GBIF logo_eol
 ajhg-inat-leptosoma S. leptosoma Tanaka, 1908

English common names:
Delicate ghost pipefish, Thin ghost pipefish
Indian & Western Pacific NE url GBIF logo_eol
 uwkwaj-inat-paegnius S. paegnius Jordan & Thompson, 1914

English common names:
Roughsnout ghost pipefish
Eastern Indian & Western Pacific NE url GBIF logo_eol
 ivan_neo_inat_paradoxus S. paradoxus (Pallas, 1770)

English common names:
Ornate ghost pipefish, Harlequin ghost pipefish
Indian & Western Pacific LC url GBIF logo_eol

IUCN Red List categories

Click here for a full explanation of IUCN Red List categories. A brief key is provided below.

EX EW CR EN VU NT LC DD NE
Extinct Extinct in
the Wild
Critically
Endangered
Endangered Vulnerable Near
Threatened
Least
Concern
Data
Deficient
Not
Evaluated

A note on ‘Data Deficient’ species: Species that are assessed as Data Deficient are deemed to have insufficient information known about them to carry out a proper conservation assessment. Although such species are not assessed as threatened, we may find out that they in fact are, once enough data is obtained.


Banner image of ornate ghost pipefish (Solenostomus paradoxus) © daveharasti / iNaturalist
Image of armoured ghost pipefish (Solenostomus armatus) © Mei Tackeuchi
Image of robust ghost pipefish (Solenostomus cyanopterus) © uwkwaj / iNaturalist
Image of halimeda ghost pipefish (Solenostomus halimeda) © uwkwaj / iNaturalist
Image of delicate ghost pipefish (Solenostomus leptosoma) © ajhg / iNaturalist
Image of roughsnout ghost pipefish (Solenostomus paegnius) © uwkwaj / iNaturalist
Image of ornate ghost pipefish (Solenostomus paradoxus) © neowildlife / iNaturalist

[Page updated Feb 2026]