Fin's Fish Guide
The Thornback guitarfish (Platyrhinoidis triseriata) is a saltwater fish of the family Rhinobatidae that grows up to 91 cm.
Description
The thornback guitarfish is a ray from the eastern Pacific, along California and Baja California. The species grows to about 91 cm and has a flattened forebody with a rounded pectoral disc and a strong, shark-like tail with two dorsal fins. Rows of large thorns run over the back and tail, to which the name refers. Unlike stingrays it has no venomous spine. As a bottom-dweller it lies buried on sandy bottoms and eats crustaceans, molluscs and worms. The IUCN assesses the species as Least Concern (LC).
Frequently asked questions
How do you recognise the Thornback guitarfish?
The Thornback guitarfish has an irregular in shape body, is mainly brown and shows a plain pattern. Rows of large dorsal thorns; shark-like tail; no venomous spine
Where does the Thornback guitarfish live?
The Thornback guitarfish lives in the sea (marine waters) and is mostly found around sand or mud bottom. Eastern Pacific
How big does the Thornback guitarfish get?
The Thornback guitarfish grows to a maximum of about 91 cm.
Is the Thornback guitarfish dangerous to humans?
No, the Thornback guitarfish is harmless to humans. This species is harmless to humans. No specific first aid is needed. Still handle the fish with care: mind the fin rays and the sharp edges of the gill cover, and rinse any scratch with clean water and cover it. For a dirty or deep wound check tetanus status.
Is the Thornback guitarfish edible?
The Thornback guitarfish is rarely eaten.
More photos
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All data
Identification
Appearance
Habitat & distribution
Behaviour & biology
For anglers
Safety
Status & sources
More from the family Rhinobatidae
Want the complete picture on the Thornback guitarfish?
Point your camera at the fish and Fin names the species in seconds. Free, and the Thornback guitarfish is one of 12,519 species in the app.