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Apalone is a genus of turtles in the family Trionychidae. The three species of Apalone are native to freshwater habitats in North America; they are the only living softshell turtles from the Americas (other American softshell turtles are only known from fossil remains).
The spiny softshell turtle (Apalone spinifera) is a species of softshell turtle, one of the largest freshwater turtle species in North America.Both the common name, spiny softshell, and the specific name, spinifera (spine-bearing), refer to the spiny, cone-like projections on the leading edge of the carapace, which are not scutes (scales).
Apalone spinifera spinifera has sometimes been used only to designate populations east of the Mississippi, while populations west of the Mississippi have been designated Apalone spinifera hartwegi. The subspecific name hartwegi is in honor of Dr. Norman Edouard Hartweg (1904–1964), who was a specialist in turtles and professor of zoology at ...
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. It is found only in the Cuatro Ciénegas Basin in the Mexican state of Coahuila and it is considered critically endangered by the IUCN . [ 1 ]
The Florida softshell turtle is a large turtle with a flattened, pancake-like body, a long neck, an elongated head with a long snorkel-like nose, and large webbed feet, each with three claws. While most turtles have hard shells composed of scutes , the Florida softshell turtle has a cartilaginous carapace covered in leathery skin.
Trionychidae is a family of turtles, commonly known as softshell turtles or simply softshells.The family was described by Leopold Fitzinger in 1826. Softshells include some of the world's largest freshwater turtles, though many can adapt to living in highly brackish waters.
The Texas spiny softshell turtle (Apalone spinifera emoryi) is a subspecies of the spiny softshell turtle in the family Trionychidae. The subspecies is native to the southwestern United States and adjacent northeastern Mexico .
Apalone spinifera asper – Stubbs, 1989 Apalone spinifera aspera – Iverson, Meylan, Pritchard, Seidel & Ward, 1990 The Gulf Coast spiny softshell turtle ( Apalone spinifera aspera ), a subspecies in the Trionychidae family of softshell turtles , is endemic to the south-eastern United States.