Elasmobranchii (sharks and rays) >
Torpediniformes (Electric rays) >
Narcinidae (Numbfishes)
Etymology: Discopyge: Greek, diskos = disc shape + Greek, pyge = tail (Ref. 45335).
Eponymy: Baron Dr Johann Jakob von Tschudi (1818–1889) was a Swiss explorer, physician, diplomat, naturalist, hunter, anthropologist, cultural historian, language researcher and statesman. [...] (Ref. 128868), visit book page.
More on author: Heckel.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; demersal; depth range 5 - 165 m (Ref. 38391). Subtropical; 15°S - 56°S, 76°W - 50°W (Ref. 114953)
Southeast Pacific: Peru and Chile (Ref. 5530). Southwest Atlantic: Uruguay and Argentina (Ref. 2806).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 53.8 cm TL male/unsexed; (Ref. 38391); 44.2 cm TL (female); common length : 42.0 cm TL male/unsexed; (Ref. 114953)
A benthic species found on continental shelf. Produces 2-5 pups during each gestation (up to 12 reported from Argentina). Segregates by sex. Maturity size for males at 23-29 cm TL, females probably smaller (at least in Argentina); birth size at 8-9 cm TL (Ref. 114953).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Menni, R.C., R.A. Ringuelet and R.H. Aramburu, 1984. Peces marinos de la Argentina y Uruguay. Editorial Hemisferio Sur S.A. Buenos, Aires, Argentina. 359 p. (Ref. 2806)
IUCN Red List Status (Ref. 130435: Version 2024-2)
Human uses
Fisheries: of no interest
Tools
Fatal error: Uncaught mysqli_sql_exception: Too many connections in /var/www/html/includes/speciessummary.lib.php:2004
Stack trace:
#0 /var/www/html/includes/speciessummary.lib.php(2004): mysqli->__construct()
#1 /var/www/html/summary/speciessummary.php(1812): checkRecordDisplayFBQuizV2()
#2 {main}
thrown in /var/www/html/includes/speciessummary.lib.php on line 2004