Elasmobranchi (squali e razze) (sharks and rays) >
Rhinopristiformes (Shovelnose rays) >
Rhinobatidae (Guitarfishes)
Etymology: Rhinobatos: Greek, rhinos = nose + Greek, batis, -idos = a ray (Raja sp.) (Ref. 45335).
More on author: Norman.
Ambiente: milieu / zona climatica / distribuzione batimetrica / gamma di distribuzione
Ecologia
marino; salmastro demersale; distribuzione batimetrica ? - 35 m (Ref. 114953). Tropical; 16°N - 17°S, 19°W - 13°E (Ref. 114953)
Eastern Atlantic: Gulf of Guinea to Angola.
Dimensione / Peso / Età
Maturità: Lm ? range ? - ? cm
Max length : 75.0 cm TL maschio/sesso non determinato; (Ref. 6497); common length : 60.0 cm TL maschio/sesso non determinato; (Ref. 114953)
Benthic and more or less stationary in inshore coastal waters. Feeds on fish and shrimps (Ref. 28587). Ovoviviparous. Females have litters of 2-3 pups. Males mature at ca. 46 cm TL, females at ca. 52 cm TL; birth size at ca. 15 cm TL (Ref. 114953).
Ciclo vitale e comportamento di accoppiamento
Maturità | Riproduzione | Deposizione | Uova | Fecondità | Larve
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 (Ref. 50449).
Stehmann, M., 1990. Rhinobatidae. p. 23-27. In J.C. Quero, J.C. Hureau, C. Karrer, A. Post and L. Saldanha (eds.) Check-list of the fishes of the eastern tropical Atlantic (CLOFETA). JNICT, Lisbon; SEI, Paris; and UNESCO, Paris. Vol. 1. (Ref. 6497)
Stato della Lista Rossa IUCN (Ref. 130435: Version 2025-2 (Global))
Minaccia per l'uomo
Harmless
Usi umani
Pesca: scarso interesse commerciale
Strumenti
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