Zapteryx exasperata

(Jordan & Gilbert, 1880)

Banded guitarfish
Classification: Elasmobranchii Rhinopristiformes Trygonorrhinidae

Reference of the original description
Jordan, D.S. & Gilbert, C.H. (1880)
Notes on a collection of fishes from San Diego, California. Proceedings of the United States National Museum, 3(106), 23–34

Image of the original description
No image in first description.

Synonyms / new combinations and misspellings
Platyrhina exasperata, Rhinobatus exasperatus, Syrrhina exasperata, Trigonorhina alveata, Trigonorhina exasperata, Zapteryx exasperatus

Zapteryx exasperata
Lectotype: USNM: 25050 (lost) Paralectotype: MCZ: 25032 MCZ: 36022 (ex USNM) USNM: 24878
Trigonorhina alveata
Holotype: MCZ: 381-S

Description :

Citation: Zapteryx exasperata (Jordan & Gilbert, 1880): In: Database of modern sharks, rays and chimaeras,, World Wide Web electronic publication, Version 03/2024

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Zapteryx exasperata (Jordan & Gilbert, 1880), mature male, from La Paz Bay, BCS, Mexico © Itzigueri Burgos
Common names
spa Guitarra bandeada, spa Guitarra con bandas, spa Guitarra rayada, fra \(T\) Poisson-guitare rayé, eng Banded guitarfish, eng Guitarfish, eng Mottled guitarfish, eng Prickly skate, eng Striped guitarfish

Short Description
Spiral valve count: 8-10. Broad disc is about as wide as it is long; dorsal surface covered with numerous, small to large, scattered, stellate prickles; a single median row of enlarged thorns running along the mid-back; a broad, short snout; small, blunt, pebble like teeth; a dorsal fin that originates closer to the pelvic fin bases than to the caudal fin origin; a thick tail and a moderately large, rounded caudal fin without a distinct lower lobe. Tooth count: 60-75/60-75. Coloration: The dorsal surface is sandy brown to dark gray, with several prominent black bars, and lighter below with dark spots on the posterior edge of the pectoral fins.

Eastern Pacific: southern California, USA to Peru. Source:

Human uses
fisheries: minor commercial; price category: medium; price reliability: very questionable: based on ex-vessel price for species in this family

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]. During breeding season, male and female adult schools congregate in shallow areas of bays and lagoons (Ref. 51576). Parturition takes place three to four months after mating, with litters of 4 to 11 pups (Ref. 48844). Generally in rocky areas but may also be found on sandy bottoms (Ref. 37955). Reported from tide pools [1658]. Relatively docile, harmless rays that are easily approached by divers (Ref. 48844). Feeds mainly on mollusks and crustaceans (Ref. 37955). Mobile invertebrate feeder (Ref. 57615).

Size / Weight / Age
83.0 cm (male/unsexed; (Ref. 48844)); 97 cm (female)

reef-associated; marine; depth range 1 - 200 m (Ref. 37955), usually 1 - 22 m [1658]

shark-references Species-ID=7549;

Parasites (arranged by Jürgen Pollerspöck)
  • Pseudochristianella nudiscula Campbell & Beveridge, 2006 [10844] [23771]
  • Pterobothrioides carvajali Campbell & Beveridge, 1997 [16112]

  • Anaporrhutum euzeti Curran, Blend & Overstreet, 2003 [23771]

  • Austrobdella cairae Curran, Phillips, Overstreet, Benz & Henningsen, 2016 [24176]