分類 / Names
俗名 | 同種異名 | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Elasmobranchii 板鰓亞綱 (鯊魚與魟魚) (sharks and rays)
(Stingrays) 鰩目 (Stingrays)
(Butterfly rays) 燕魟科 (Butterfly rays)
Etymology: Gymnura: Greek, gymnos = naked + Greek, oura = tail (Ref. 45335); lessae: Named for Dr. Rosangela Lessa, Brazilian researcher working for the conservation of sharks and rays in her country.
Environment: milieu / climate zone / depth range / distribution range
; 海洋 居於水底的.
Western Atlantic: USA, from southern Massachusetts and Buzzards Bay to the Gulf of Mexico (including the Gulf Coast of the US and Mexico). And probably may be extended to the northern Caribbean Sea (Bahamas and Jamaica).
大小 / 重量 / 年齡
Maturity: Lm ?  range ? - ? cm
Max length : 60.9 cm WD 雄魚/尚未辨別雌雄; (Ref. 116399); 110.0 cm WD (female)
This demersal species lives along the coast on sandy and muddy bottoms. Reported stomach contents include fishes, crustaceans, molluscs and other invertebrates. This species is matrotophic viviparous (lipid histotrophy). Young are reported to be produced from late May through July and into August, and probably even later in the season. Pregnancy is reported to occur during the summer months (Ref. 116399).
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
Yokota, L. and M.R. de Carvalho, 2017. Taxonomic and morphological revision of butterfly rays of Gymnura micrura (Bloch & Schneider, 1801) species complex, with the description of two new species (Myliobatiformes: Gymnuridae). Zootaxa 4332(1):1-74. (Ref. 116399)
CITES (Ref. 123416)
合作者照片Stamps, Coins Misc.聲音神經毒速度泳型鰓區Otoliths腦重體重比眼睛色素
Estimates based on models
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm total length, based on all LWR estimates for this body shape (Ref. 93245
營養階層 (Ref. 69278
): 3.9 ±0.6 se; based on size and trophs of closest relatives
瀕危性 (Ref. 59153
): Moderate to high vulnerability (48 of 100) .