Hagen, 1870

Hagen HA. 1870. Monograph of the North American Astacidae. Illustrated Catalogue of the Museum of Comparative Zoology at Harvard College 3: 1-109. http://dx.doi.org/10.5962/bhl.title.4923

Abstract

Without abstract. First paragraph of Introduction:

The following monograph of the Fresh-water Crawfishes of North America is intended to form the first step in a scientific examination of the rich crustacean materials contained in the Museum of Comparative Zoology at Harvard College, in Cambridge. The excellent monograph of the genus Callinectes, published by Mr. A. Ordway in 1863, is the only work about Crustacea, based principally upon the Cambridge collection.

Keywords: None provided.

Note: While doing some research to make a point, I discovered that the original species description for Procambarus fallax, the sexual form of Marmorkrebs, is available online. Since taxonomic sources are not cited anywhere near often enough, I include it here. The Procambarus fallax description is on pages 45 and 46 (mostly in Latin).