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Bowmouth guitarfish (Rhina ancylostoma) — Rhinidae

Bowmouth guitarfish

Rhina ancylostoma
Family: Rhinidae
CR · Critically Endangered

The Bowmouth guitarfish (Rhina ancylostoma) is a saltwater fish of the family Rhinidae that grows up to 270 cm.

Length
270 cm
Water
Saltwater
Diet
Carnivore
Behaviour
Solitary
Body shape
Irregular
Substrate
Sand / mud bottom
Danger
Harmless
Range
Indo-West Pacific, on coastal bottoms and reefs.
Edibility
Commonly eaten

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Description

The bowmouth guitarfish, also called 'shark ray', is a striking cartilaginous fish of the family Rhinidae from the Indo-West Pacific. The species can reach about 270 cm and has a broad, rounded head, thorny ridges above the eyes and on the back, and a muscular, shark-like tail; the body is grey-blue with white spots. It lives on sand and mud bottoms of coastal waters and reefs and crushes crustaceans, molluscs and small fishes with its flat grinding plates. It is livebearing. Through heavy fishing for its fins and meat the species is critically endangered (CR).

Frequently asked questions

How do you recognise the Bowmouth guitarfish?

The Bowmouth guitarfish has an irregular in shape body, is mainly blue and shows a spots pattern. Broad, rounded head with thorny ridges and a shark-like tail; critically endangered (CR) because of fishing.

Where does the Bowmouth guitarfish live?

The Bowmouth guitarfish lives in the sea (marine waters) and is mostly found around sand or mud bottom. Indo-West Pacific, on coastal bottoms and reefs.

How big does the Bowmouth guitarfish get?

The Bowmouth guitarfish grows to a maximum of about 270 cm. On average the species is around 150 cm.

Is the Bowmouth guitarfish dangerous to humans?

No, the Bowmouth guitarfish is harmless to humans. None required: this species is harmless to humans.

Is the Bowmouth guitarfish edible?

Yes, the Bowmouth guitarfish is commonly eaten.

More photos

Bowmouth guitarfish (Rhina ancylostoma) — Rhinidae — 2
iNaturalist ((c) Jiayuan Lin, some rights reserved (CC BY-NC))
Bowmouth guitarfish (Rhina ancylostoma) — Rhinidae — 3
Mark McGrouther (CC BY 4.0) via GBIF — AM
Bowmouth guitarfish (Rhina ancylostoma) — Rhinidae — 4
Wikimedia Commons — Kim Navarre from Brooklyn, NY (CC BY-SA 2.0)
Bowmouth guitarfish (Rhina ancylostoma) — Rhinidae — 5
iNaturalist ((c) ivan_rudenkov, some rights reserved (CC BY-NC))
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All data

Identification

English name
Bowmouth guitarfish sourced
Scientific name
Rhina ancylostoma
Family
Rhinidae
Other names
Shark ray; Mud skate; Bow-mouthed angel fish; Bow-mouthed angel shark; Bowmouthed guitarfish; Sharkray; Shortnose mud skate

Appearance

Size class
Extra large
Max length (cm)
270.0 sourced
Average length (cm)
150.0 verified
Body shape
Irregular sourced
Dominant colour
Blue inferred
Pattern
Spots inferred
Tail shape
Forked inferred
Mouth position
Inferior (downward) inferred
Lips
Thick / fleshy inferred
Barbels
No sourced
Dorsal fins
Two separate inferred
Dorsal spines
Yes sourced

Habitat & distribution

Water type
Saltwater sourced
Substrate
Sand / mud bottom sourced
Natural range
Indo-West Pacific, on coastal bottoms and reefs. inferred
Origin
Native sourced

Behaviour & biology

Diet
Carnivore sourced
Diet (detail)
Crustaceans, molluscs and small fishes from the bottom sourced
Social behaviour
Solitary inferred
Territorial
No inferred
Reproduction
Separate sexes sourced
Sexual dimorphism
No inferred
Seasonality
Present year-round in its habitat; no pronounced seasonality known. inferred
Special features
Broad, rounded head with thorny ridges and a shark-like tail; critically endangered (CR) because of fishing. sourced

For anglers

Edibility
Commonly eaten sourced
Regulations source
FishBase ↗ inferred

Safety

Danger to humans
Harmless sourced
First aid
None required: this species is harmless to humans. sourced

Status & sources

Sources
FishBase via GBIF (DwC-A), CC-BY-NC 4.0

More from the family Rhinidae

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