Advertisement

You can sponsor this page

Rhinobatos cemiculus  Geoffroy Saint-Hilaire, 1817

Blackchin guitarfish
Add your observation in Fish Watcher
Aquamaps webservice down at the moment
Upload your photos and videos
Pictures | Google image
Image of Rhinobatos cemiculus (Blackchin guitarfish)
Rhinobatos cemiculus
Picture by Meyer, T.

Classification / Names Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Elasmobranchii (sharks and rays) > Rajiformes (Skates and rays) > Rhinobatidae (Guitarfishes) > Rhinobatinae
Etymology: Rhinobatos: Greek, rhinos = nose + Greek, batis, -idos = a ray (Raja sp.) (Ref. 45335).

Environment / Climate / Range Ecology

Marine; brackish; demersal; depth range 9 - 100 m.   Subtropical; 42°N - 17°S, 19°W - 36°E

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 242 cm TL male/unsexed; (Ref. 40637); common length : 150 cm TL male/unsexed; (Ref. 3710); max. published weight: 49.9 kg (Ref. 40637)

Short description Morphology | Morphometrics

Dorsal spines (total): 0; Anal spines: 0; Anal soft rays: 0. Rostral ridges narrowly separated, nearly joining in front; anterior nasal lobe extending little if any, posterior nasal flap narrow; spiracle with two well-developed folds of about same size; thorns present around inner margin of orbits, between spiracles, on shoulders and along midline of disc and tail; upper surface brown, underside white, but usually a blackish blotch on snout mainly in juveniles (Ref. 6675).

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Eastern Atlantic: northern Portugal to Angola, including the Mediterranean Sea.

Biology     Glossary (e.g. epibenthic)

Inhabits sandy and muddy bottoms, from shadow water to about 100 m. Slow swimming over bottom or partially buried. Feeds on invertebrates and fishes. Ovoviviparous, one or two litters per year, of 4-6 embryos.

Main reference Upload your references | References | Coordinator : McEachran, John | Collaborators

Bauchot, M.-L., 1987. Raies et autres batoides. p. 845-886. In W. Fischer, M.L. Bauchot and M. Schneider (eds.) Fiches FAO d'identificationpour les besoins de la pêche. (rev. 1). Mèditerranée et mer Noire. Zone de pêche 37. Vol. II. Commission des Communautés Européennes and FAO, Rome. (Ref. 3261)

IUCN Red List Status (Ref. 90363)

  Endangered (EN) (A4bd)

CITES (Ref. 94142)

Not Evaluated

Threat to humans

  Harmless




Human uses

Fisheries: minor commercial; gamefish: yes
FAO(Publication : search) | FisheriesWiki | Sea Around Us

More information

Countries
FAO areas
Ecosystems
Occurrences
Introductions
Stocks
Ecology
Diet
Food items
Food consumption
Ration
Common names
Synonyms
Metabolism
Predators
Ecotoxicology
Reproduction
Maturity
Spawning
Fecundity
Eggs
Egg development
Age/Size
Growth
Length-weight
Length-length
Length-frequencies
Morphometrics
Morphology
Larvae
Larval dynamics
Recruitment
Abundance
References
Aquaculture
Aquaculture profile
Strains
Genetics
Allele frequencies
Heritability
Diseases
Processing
Mass conversion
Collaborators
Pictures
Stamps, Coins
Sounds
Ciguatera
Speed
Swim. type
Gill area
Otoliths
Brains
Vision

Tools

Special reports

Download XML

Internet sources

Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Trophic Level (Ref. 69278):  4.0   ±0.70 se; Based on food items.
Resilience (Ref. 69278):  Very Low, minimum population doubling time more than 14 years (Fec=4).
Vulnerability (Ref. 59153):  Very high vulnerability (85 of 100) .
Price category (Ref. 80766):   Low.