Acroteriobatus annulatus

(Smith in Müller & Henle, 1841)

Lesser sandshark
Classification: Elasmobranchii Rhinopristiformes Rhinobatidae

Reference of the original description
Müller, J. & Henle, F.G.J. (1841)
Systematische Beschreibung der Plagiostomen. Berlin, Veit, pp. 1–200

Image of the original description

Rhinobatos annulatus Müller & Henle, 1841 (in Smith, 1838), valid as Acroteriobatus annulatus Müller & Henle, 1841

Synonyms / new combinations and misspellings
Rhinobatos annulatus, Rhinobatos (Acroteriobatus) annulatus, Rhinobatus annulatus, Rhinobatus (Syrrhina) annulatus

Acroteriobatus annulatus

Rhinobatos annulatus
Syntype: BMNH: 1843.2.29.22 MNHN: A-8586;

Description :

Citation: Acroteriobatus annulatus (Smith in Müller & Henle, 1841): In: Database of modern sharks, rays and chimaeras,, World Wide Web electronic publication, Version 04/2024

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Common names
deu \(T\) Geigenrochen, spa Guitarra del Cabo, fra \(T\) Poisson-guitare du Cap, eng Guitarfish, eng Lesser guitarfish, eng Lesser sandshark, eng Sandshark

Short Description
A guitarfish with a broad, wedge-shaped snout and pectoral disc [536]. Tan to dark brown above, white below [536]. Typical Cape color variant with numerous small eyespots (dark brown spot ringed with white and a brown margin) on back; Natal color variants with simple large dark spots [536].

Southeast Atlantic: Namibia to central Natal, South Africa. Record from Madagascar is uncertain (Ref. 3919). Source:

Human uses
fisheries: commercial; gamefish: yes

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]. 2-10 young born in the summer [536].

Size / Weight / Age
140 cm TL (male/unsexed; (Ref. 3919))

demersal; brackish; marine; depth range ? - 73 m (Ref. 3919)

shark-references Species-ID=14409;

Parasites (arranged by Jürgen Pollerspöck)