Systematics and biogeography of the Helminthoglyptidae of Sonora.

A study of the Helminthoglyptidae of Sonora was undertaken to determine the extent of their distribution and speciation. As a result, nine new species of Sonorella are described, and new ranges of the known species are given. The status of the family is reviewed and its standing is supported with th...

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Bibliographic Details
Main Author: Naranjo-Garcia, Edna.
Other Authors: Miller, Walter B.
Language:en
Published: The University of Arizona. 1988
Subjects:
Online Access:http://hdl.handle.net/10150/184460
Description
Summary:A study of the Helminthoglyptidae of Sonora was undertaken to determine the extent of their distribution and speciation. As a result, nine new species of Sonorella are described, and new ranges of the known species are given. The status of the family is reviewed and its standing is supported with the analysis of morphological characteristics of several genera. The zoogeography of the family and its distribution are shown. Possible dispersal and isolation mechanisms are discussed in order to explain the present distribution of these snails, and comments on ecological and speciation accounts are offered.