Cuatro Cienegas softshell, Cuatro ciénegas softshell, Black spiny softshell
The Cuatro Ciénegas softshell (Apalone spinifera atra ), also called the black spiny softshell, is a subspecies of the spiny softshell turtle in the family Trionychidae. The subspecies, along with its parent species, was formerly classified in the genus Trionyx.
Oviparous animals are female animals that lay their eggs, with little or no other embryonic development within the mother. This is the reproductive...
Precocial species are those in which the young are relatively mature and mobile from the moment of birth or hatching. Precocial species are normall...
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starts withA. s. atra is found only in the Cuatro Ciénegas Basin in the state of Coahuila, Mexico.
