Pseudobatos planiceps

(Garman, 1880)

Pacific guitarfish
Classification: Elasmobranchii Rhinopristiformes Rhinobatidae

Reference of the original description
Garman, S. (1880)
New species of selachians in the museum collection. Bulletin of the Museum of Comparative Zoology at Harvard College, 6(11), 167–172

Image of the original description
No image in first description.

Synonyms / new combinations and misspellings
Rhinobatos planiceps, Rhinobatus planiceps

Pseudobatos planiceps

Rhinobatos planiceps
Syntype: MCZ: 633-S MCZ: 538-S MCZ: 537-S MCZ: 378-S MCZ: 377-S

Description :

Citation: Pseudobatos planiceps (Garman, 1880): In: Database of modern sharks, rays and chimaeras,, World Wide Web electronic publication, Version 03/2024

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Pseudobatos planiceps (Garman, 1880) © Dra. Maribel Carrera Fernández, Universidad Laica Eloy Alfaro de Manabí, Manta, Ecuador
Common names
spa Guitarra, spa Guitarra de Pacífico, spa Guitarra del pacifico, fra \(T\) Poisson-guitare du Pacifique, eng Flathead guitarfish, eng Pacific guitarfish, por Viola-do-Perú

Eastern Pacific: southern Mexico to Peru and Chile, including the Galapagos Islands. Source:

Human uses
fisheries: minor commercial; price category: high; price reliability: reliable: based on ex-vessel price for this species

Exhibit ovoviparity (aplacental viviparity), with embryos feeding initially on yolk, then receiving additional nourishment from the mother by indirect absorption of uterine fluid enriched with mucus, fat or protein through specialised structures [733].

Size / Weight / Age
TL min/max: 54,5 cm/113,5 cm, Weight (g) min/max: 560 g/6280 g (Database: 55 specimens, collected between October 2013 and August 2014 from the artisanal fisheries in ‘Los Esteros’ located in Manta City, Ecuadorian Pacific (0° 56' 59'' S; 80° 42' 34'' W) and from ‘La Poza’ located in Santa Rosa City (02° 13'0'' S; 80° 58' 0'' W)) [22773]

demersal; marine

shark-references Species-ID=14584;

Parasites (arranged by Jürgen Pollerspöck)
  • Anoplocotyloides chorrillensis Luque & Iannacone, 1991 [22565]
  • Anoplocotyloides papillatus (Doran, 1953) Young, 1967 [22565]
  • Rhinobatonchocotyle cyclovaginatus Doran, 1953 [22565]
  • Rhinobatonchocotyle pacifica Oliva & Luque, 1995 [11320] [22565] [27491] [32535]

  • Proleptus acutus Dujardin, 1845 [16188]
  • Proleptus carvajali Fernandez & Villalba, 1985 [19883]

  • Eudactylina indivisa Castro-Romero & Baeza-Kuroki, 1991 [17874]
  • Eudactylina peruensis Luque & Farfán, 1991 [17873] [17867]