 The leopard catshark is oviparous and apparently reproduces throughout the year . Females produce two eggs at a time , one within each oviduct . Each egg is protected by a rectangular capsule 7 cm ( 2 @.@ 8 in ) long and 3 cm ( 1 @.@ 2 in ) across , which is light brown to olive in color and thinner @-@ walled than those of the pyjama shark . The corners of the capsule bear long tendrils that enable the female to secure them to underwater structures . In the aquarium , the eggs hatch in approximately five and a half months . The hatchling shark measures 11 cm ( 4 @.@ 3 in ) long ; males and females begin to mature sexually at 47 – 67 cm ( 19 – 26 in ) and 43 – 64 cm ( 17 – 25 in ) long respectively , corresponding to an age of around 10 years . One source reports the maximum lifespan as at least 15 years , while another source gives at least 19 years . 
