Narcinidae Gill, 1862

Marram ̀, Giuseppe, Claeso, Kerin M., Carneval, Giorgio & Kriwe, Jurgen, 2018, Revision of Eocene electric rays (Torpediniformes, Batomorphii) from the Bolca Konservat-Lagerst atte, Italy, reveals the first fossil embryo in situ in marine batoids and provides new insights into the origin of trophic novelties in coral reef fishes, Journal of Systematic Palaeontology 16 (14), pp. 1189-1219 : 1192

Family Narcinidae Gill, 1862

Diagnosis (emended). Medium to large-sized narcinoid electric rays sharing three synapomorphies: presence of rostral fontanelle, reduced number of ribs (up to 10 pairs), and rostral cartilage connected to the antorbital cartilages through lateral rostral appendices. Additionally, narcinids possess the following combination of characters: palatoquadrate labiolingually compressed and tapered towards the symphysis; small subtriangular labial cartilages close to symphysis; rostral cartilage expanded and trough-shaped; large and rounded basibranchial copula with small caudal tab; tooth cusps and roots narrow and high; long precaudal tail; two dorsal fins.

Included genera. Benthobatis Alcock, 1898 ; Diplobatis Bigelow & Schroeder, 1948 ; Discopyge Heckel, 1846 ; Narcine Henle, 1834 ; † Titanonarke Carvalho, 2010 .