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1 February 2000 SYSTEMATIC STUDIES OF THE ORCONECTES JUVENILIS COMPLEX (DECAPODA: CAMBARIDAE), WITH DESCRIPTIONS OF TWO NEW SPECIES
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Abstract

The juvenilis complex of the crayfish genus Orconectes has been problematic for over 100 years. Morphological variation across the range of the complex was examined to determine species boundaries and geographic distribution. Multivariate and univariate analyses of characters support the recognition of O. juvenilis and warrant the descriptions of two new species, O. ronaldi and O. cristavarius. The shape of the form I male pleopod, the shape of the rostrum, and the length of the areola are the most useful characters for diagnosing species within the O. juvenilis complex. A key to members of the O. juvenilis complex is provided.

Christopher A. Taylor "SYSTEMATIC STUDIES OF THE ORCONECTES JUVENILIS COMPLEX (DECAPODA: CAMBARIDAE), WITH DESCRIPTIONS OF TWO NEW SPECIES," Journal of Crustacean Biology 20(1), 132-152, (1 February 2000). https://doi.org/10.1651/0278-0372(2000)020[0132:SSOTOJ]2.0.CO;2
Received: 21 December 1998; Accepted: 24 March 1999; Published: 1 February 2000
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