Benthobatis marcida, Blind torpedo

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Related species
- Species in
  Benthobatis
- Species in
  Narcinidae
- - Classification -
- Narcinidae
- Torpediniformes
- Elasmobranchii
- Chordata
- Animalia

Benthobatis marcida Bean & Weed, 1909

Blind torpedo

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Native range | All suitable habitat | Point map | Year 2050

This map was computer-generated and has not yet been reviewed.

Benthobatis marcida AquaMaps Data sources: GBIF OBIS

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Image of Benthobatis marcida (Blind torpedo)

Benthobatis marcida
Picture by FAO

Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa

Elasmobranchii (sharks and rays) > Torpediniformes (Electric rays) > Narcinidae (Numbfishes)
Etymology: Benthobatis: Greek, benthos = depth of the sea + Greek, batis, -idos = a ray (Raja sp.) (Ref. 45335); marcida: From its loose skin and soft aspect ['marcidus' = withered or wasted].

Environment: milieu / climate zone / depth range / distribution range Ecology

Marine; bathydemersal; depth range 200 - 923 m (Ref. 48493). Deep-water; 34°N - 21°N, 82°W - 74°W (Ref. 114953)

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

Western Central Atlantic. South Carolina, USA to northern Cuba.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 50.0 cm WD male/unsexed; (Ref. 26340)

Short description Identification keys | Morphology | Morphometrics

Narrow protractile mouth. Caudal is oval shape. Greater length of head anterior to spiracles, union of margins of its pelvic fins to their tips with the sides of the tail. Soft body and skin (Ref. 6902). Light brown to yellowish-brown dorsal color pattern; white to yellowish-white ventral color pattern, sometimes with distinct yellow markings on posterior ventral disc surface, ventral pelvic fin area, and around mouth. Caudal fin length much less than 1/2 length of tail, roughly equal to 1/5 length of tail; relatively more pronounced upper and lower lobes with lower strongly convex. Distance between dorsal and caudal fins about equal to distance between first and second dorsal fins. Snout relatively short, generally less than 1/3 in disc-length (24% of disc length in 43.5 cm TL female, 25% in 48.5 cm TL), but never much greater than 1/3 as in B. moresbyi (ca 40% in lectotype); disc more rounded, not as elongated as in B. moresbyi (Ref. 48493).

Inhabits neritic waters, on sandy bottoms (Ref. 557). Found on continental and insular slopes at 250-1,000 m depths; adults apparently at greatest depths (Ref. 114953). Solitary. Tiny eyes are covered with skin so that the species is blind (Ref. 557). Feeds on marine invertebrates. Both ovaries are functional in an adult female, with numerous small oocytes of ca. 2 mm in thin-walled uteri. Maturity size of males at ca. 16 cm TL; birth size at 8-9 cm TL (Ref. 114953).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference Upload your references | References | Coordinator : Carvalho, Marcelo | Collaborators

Claro, R., 1994. Características generales de la ictiofauna. p. 55-70. In R. Claro (ed.) Ecología de los peces marinos de Cuba. Instituto de Oceanología Academia de Ciencias de Cuba and Centro de Investigaciones de Quintana Roo. (Ref. 26340)

IUCN Red List Status (Ref. 130435: Version 2024-2)

Least Concern (LC) ; Date assessed: 19 June 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Other (Ref. 10011)

Human uses

Fisheries: of no interest

FAO - Publication: search | FishSource |

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Estimates based on models

Preferred temperature (Ref. 123201): 8.8 - 18.2, mean 13 °C (based on 77 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.01175 (0.00470 - 0.02937), b=2.88 (2.66 - 3.10), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.2 ±0.4 se; based on size and trophs of closest relatives

Resilience (Ref. 120179): Low, minimum population doubling time 4.5 - 14 years (Assuming fecundity<100).

Fishing Vulnerability (Ref. 59153): Low vulnerability (20 of 100).

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