Elasmobranquios (tiburones y rayas) (sharks and rays) >
Torpediniformes (Electric rays) >
Hypnidae (Coffin rays)
Etymology: Hypnos: Greek, hypnos = sleep (Ref. 45335).
More on author: Shaw.
Entorno: milieu / zona climática / rango de profundidad / gama de distribución
Ecología
marino asociado a arrecife; rango de profundidad 0 - 240 m (Ref. 9710). Temperate; 18°S - 38°S, 112°E - 155°E (Ref. 114953)
Indo-West Pacific: endemic to Australia.
Longitud en la primera madurez / Tamaño / Peso / Edad
Madurez: Lm ?, range 24 - ? cm
Max length : 70.0 cm TL macho / no sexado; (Ref. 2272); common length : 40.0 cm TL macho / no sexado; (Ref. 6871)
Occurs inshore and offshore, ranging from the intertidal to 240 m depth (Ref. 9910, 12951). Found buried on sand and mud bottoms; sometimes found stranded out of water by the tide but is capable of surviving for hours (Ref. 9910). Feeds on crabs, worms, and fishes. It was reported that larger fishes, similar size to themselves have been found in the stomachs of Coffin rays, ingested whole through the large gape (Ref. 114953). Ovoviviparous (Ref. 50449). Maximum length probably to 92 cm TL (Ref. 9910). Both sexes mature at 40-48 cm TL; born at ca. 8-11 cm TL (Ref. 114953). A slow-moving species which uses its electric organs to stun prey. Also stuns people when accidentally stepped upon or handled (Ref. 9910).
Ciclo vital y comportamiento de apareamiento
Madurez | Reproducción | Puesta | Huevos | Fecundidad | Larva
Exhibit ovoviparity (aplacental viviparity), with embryos feeding initially on yolk, then receiving additional nourishment from the mother by indirect absorption of uterine fluid enriched with mucus, fat or protein through specialised structures (Ref. 50449). Size at birth 8 to 11 cm TL (Ref. 9910).
Compagno, L.J.V., 1999. Checklist of living elasmobranchs. p. 471-498. In W.C. Hamlett (ed.) Sharks, skates, and rays: the biology of elasmobranch fishes. Johns Hopkins University Press, Maryland. (Ref. 35766)
Situación en la Lista Roja de la UICN (Ref. 130435: Version 2025-2 (Global))
Amenaza para el ser humano
Usos humanos
Pesquerías: sin interés
Herramientas
Fatal error: Uncaught mysqli_sql_exception: Too many connections in /var/www/html/includes/speciessummary.lib.php:1888
Stack trace:
#0 /var/www/html/includes/speciessummary.lib.php(1888): mysqli->__construct('mysql', 'fbuser', Object(SensitiveParameterValue), 'fbquizv2', '3306')
#1 /var/www/html/summary/SpeciesSummary.php(1851): checkRecordDisplayFBQuizV2('8724', 'PicList')
#2 {main}
thrown in /var/www/html/includes/speciessummary.lib.php on line 1888
