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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).
The Guadalupe spiny softshell turtle (Apalone spinifera guadalupensis) is a subspecies of soft-shelled turtle native to the United States, in the state of Texas. [1] Their range is limited only to the Nueces and Guadalupe rivers, and their immediate tributaries .
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 .
Gulf coast spiny soft shell turtles inhabit various freshwater sources such as rivers, lakes, marshes, farm ponds, as well as bays of larger lakes. They prefer open habitats with a small amount of vegetation and a sandy or muddy bottom. They require sandy raised nesting areas close to water. [5]
Spondylus shells were the driving factor of trade within the Central Andes and were used in a similar manner to gold nuggets, copper hatches, coca, salt, red pepper, and cotton cloth. [ 11 ] The use of Spondylus shells is what led to an economy of sorts in the Central Andes and led to the development of a merchant class, "mercardes", in ...
The spiny softshell turtle has a rough carapace with spines along the front edge while, as the name implies, the smooth softshell turtle lacks such spines. [9] Additionally, the white chin and throat of the smooth softshell are unmarked, compared to the splotchy chin and throat of the spiny softshell. [ 9 ]
The Atlantic thorny oyster can grow up to 10 centimetres (3.9 in) in diameter. The valves of the shell are roughly circular and the upper one is decorated with many spiny protuberances up to 5 centimetres (2.0 in) long. When growing in a crevice, the shape of the shell adapts itself to the available space. [4]
The northern spiny softshell turtle (Apalone spinifera spinifera) is a subspecies of soft-shelled turtle in the family Trionychidae.The subspecies is native to the United States and can be found from Montana at the western edge of its range to Vermont and Quebec on the eastern edge.