Pacifastacus gambelii ( Girard, 1852 )

Wicksten, Mary K., 2012, Decapod Crustacea of the Californian and Oregonian Zoogeographic Provinces 3371, Zootaxa 3371, pp. 1-307 : 124-126

Pacifastacus gambelii ( Girard, 1852)

( Fig. 30A, I, M))

Astacus gambelii Girard, 1852: 90 . — Hagen 1870: 90, pl. I, figs. 97–98; pl. III, fig. 170; pl. XI. — Holmes 1900: 164. Pacifastacus gambeli . — Riegel 1959: 43, fig. 3C, 8.

Pacifastacus gambelii . — Hobbs 1976: 22, figs. 13a, 14b. — Larson & Olden 2011: 63, p. 61 fig. B.

Diagnosis. Similar to P. leniusculus except rostrum with numerous small teeth, median carina often present. Postorbital ridges lacking posterior teeth or tubercles. Dorsal surface of major chela with two conspicuous patches of setae, as well as minute tubercles. Carapace length to 35 mm.

Color in life. Brown, greenish to blackish.

Habitat and depth. Rivers, streams; shallow.

Range. Snake River and its tributaries in Idaho, Nevada, Utah, and Wyoming; see map by Larson & Olden (2011: Fig. 1). Reported from Oregon, Montana, and Washington, also upper Missouri River and other drainages east of Continental Divide but records may be due to misidentifications. Type locality " California ", but there have been no subsequent records from this state ( Larson & Olden 2011).