. California fish and game. Fisheries -- California; Game and game-birds -- California; Fishes -- California; Animal Population Groups; Pêches; Gibier; Poissons. ECOLOGY AND ANATOMY OF A RARE LAND SNAIL 5 description of its habitat. Walton (1963) reported brief survival of one individual in captivity. Roth (1972) included M. setosa in a list of rare and potentially endangered land mollusks in California. No other biological information has been published and, prior to the present study, no intensive, systematic survey had been made to delineate the species' geographic range. R. 7 E R 8 E. R. 7
. California fish and game. Fisheries -- California; Game and game-birds -- California; Fishes -- California; Animal Population Groups; Pêches; Gibier; Poissons. ECOLOGY AND ANATOMY OF A RARE LAND SNAIL 5 description of its habitat. Walton (1963) reported brief survival of one individual in captivity. Roth (1972) included M. setosa in a list of rare and potentially endangered land mollusks in California. No other biological information has been published and, prior to the present study, no intensive, systematic survey had been made to delineate the species' geographic range. R. 7 E R 8 E. R. 7 E. R 8 E R 12 W. FIGURE 1. Range of Monadenia setosa Talmadge. Living specimens found in areas indicated by double hachure, dead shells in areas of single hachure. Other regions of apparently suitable habitat outlined. The purpose of this study was to investigate the distribution, habitat require- ments, and other aspects of the biology and ecology of M. setosa in order to provide a data base for preparation of a management plan for the species. These data also have implications for ecologic/evolutionary study of California land snails in general. The shell and reproductive anatomy are illustrated for the first time. METHODS From May to September 1978, we surveyed drainages tributary to Trinity River from Italian Creek (Sees. 14, 23, T. 5N, R. 7E, Humboldt Base and Meridian) to. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original California. Dept. of Fish and Game; California. Fish and Game Commission; California. Division of Fish and Game. [San Francisco, etc. ] State of California, Resources Agency, Dept. of Fish and Game
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