分類 / Names
共通名の | 類義語 | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
板鰓亜鋼(サメとエイ類) (sharks and rays)
(Stingrays) > Gymnuridae
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 底生の. Subtropical
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).
サイズ / 重さ / 年齢
Maturity: Lm ?  range ? - ? cm
Max length : 60.9 cm WD オス/雌雄の選別がない; (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 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
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)
協力者画像Stamps, Coins Misc.音シガテラ（食中毒の名前）速度泳ぐ 型式カマOtoliths脳視覚
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
栄養段階 (Ref. 69278
): 3.9 ±0.6 se; based on size and trophs of closest relatives
弱み (Ref. 59153
): Moderate to high vulnerability (48 of 100) .