Elasmobranchii (sharks and rays) >
Torpediniformes (Electric rays) >
Narcinidae (Numbfishes)
Etymology: Diplobatis: Greek, diploos = twice + Greek, batis, -idos = a ray (Raja sp) (Ref. 45335).
More on authors: Jordan & Gilbert.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; reef-associated; depth range 3 - 94 m (Ref. 96339), usually ? - 65 m (Ref. 114953). Tropical; 28°N - 2°S, 113°W - 83°W (Ref. 114953)
Eastern Pacific: Gulf of California to Ecuador.
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 25.0 cm TL male/unsexed; (Ref. 9259)
A nocturnal and solitary species found on sand and rock bottoms, in bays and on coral reefs (Ref. 12951). Feeds on small crustaceans, worms, and fishes (Ref. 37955). The smallest adult males known ca. 15 cm TL, females ca. 18 cm TL (Ref. 114953).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
McEachran, J.D., 1995. Narcinidae. Rayas eléctricas. p. 769-771. In W. Fischer, F. Krupp, W. Schneider, C. Sommer, K.E. Carpenter and V. Niem (eds.) Guia FAO para Identification de Especies para los Fines de la Pesca. Pacifico Centro-Oriental. 3 Vols. FAO, Rome. (Ref. 9259)
IUCN Red List Status (Ref. 130435: Version 2024-2)
Human uses
Fisheries: of no interest
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Estimates based on models
Preferred temperature (Ref.
123201): 22.4 - 28.9, mean 26.4 °C (based on 72 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01413 (0.00680 - 0.02934), b=2.87 (2.68 - 3.06), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
Trophic level (Ref.
69278): 3.3 ±0.48 se; based on food items.
Resilience (Ref.
120179): Low, minimum population doubling time 4.5 - 14 years (Assuming fecundity<100).
Fishing Vulnerability (Ref.
59153): Low vulnerability (15 of 100).
Nutrients (Ref.
124155): Calcium = 14 [2, 221] mg/100g; Iron = 0.518 [0.044, 5.651] mg/100g; Protein = 15.7 [11.5, 20.1] %; Omega3 = 0.119 [0.038, 0.345] g/100g; Selenium = 28.3 [4.6, 136.1] μg/100g; VitaminA = 62.7 [4.4, 812.4] μg/100g; Zinc = 1.43 [0.10, 16.00] mg/100g (wet weight);