Gould, S. J. (1992). Constraint and the square snail: life at the limits of a covariance set. The normal teratology of Cerion disforme. Biological Journal of the Linnean Society. 47: 407-437.
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Gould, S. J.
1992
Constraint and the square snail: life at the limits of a covariance set. The normal teratology of <i>Cerion disforme</i>