Leopard catshark large black spots. Subsequent authors have recognized these names as based on pattern variants of the leopard catshark; resolving the identity of "P. marleyi" proved especially problematic and it was not confirmed to be a synonym of this species until 2003. The valid scientific name of the leopard catshark is considered to be "Poroderma pantherinum", attributed to Müller and Henle as they were responsible for the description. The specific epithet "pantherinum" refers to the panther-like patterning of the type specimen, a long female collected off the Cape of Good Hope. Other common names for this shark include barbeled catshark and
Common leopard gecko exists in adult males and females, but can be difficult to determine in young geckos. The underside of a gecko truly determines the sex of the gecko. Males have pre-anal pores and hemipenal bulges while females have smaller pores and do not have external bulges. Males can determine the sex of other common leopard geckos by smelling pheromones on their skin. Males respond to males with aggressive behavior while they demonstrate courtship behavior towards females. Towards other males, the male would raise itself up from the ground, extend his limbs, and arch his back with the swelling of the tongue