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Issue: Vol. 4468 No. 1: 3 Sept. 2018
Type: Monograph
Published: 2018-09-03
DOI: 10.11646/zootaxa.4468.1.1
Page range: 1–63
Abstract views: 73
PDF downloaded: 9

The subgenus Ortmannicus (Decapoda: Cambaridae) in Texas, with descriptions of new species

1500 Louisiana Street, Houston, Texas 77002, USA.
Crustacea crayfish Procambarus systematics taxonomy Blandingii Group

Abstract

Three crayfishes of the genus Procambarus, subgenus Ortmannicus, are described from Texas, including (1) Procambarus (Ortmannicus) parvus n. sp. from the Victoria-El Campo region of the Coastal Plain; (2) P. (O.) albaughi n. sp. from the Coastal Plain in the vicinity of Houston; and (3) P. (O.) fayettei n. sp. from the eastern versant of the Colorado River drainage south of Giddings. The three new species, P. (O.) acutus, P. (O.) texanus, and P. (O.) zonangulus form a closely allied group. They are distinguished from each other primarily by characters of the first pleopod. The subspecies P. (O.) acutus acutus and P. (O.) a. cuevachicae are elevated to full species. Species accounts are provided for all Texas subgenus members and may include diagnoses, color notes, size data, locality data, life history notes, listings of associates, and information on variation and relationships. A key to the species of Ortmannicus in Texas is also presented.

 

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