Evermann

A prairie association of Centaurium pacificum, Hypericum eastwoodianum and Heterotoma cordifolia, among many others, covers the Evermann volcano, at 1,100 m above sea level.

Islas Revillagigedo dry forests 2007

Socorro Island is the largest of the four; it first formed as a series of small explosions from the Evermann volcano, at 1,150 meters (m) above sea level.

Islas Revillagigedo dry forests 2007

Jordan and Evermann, in their landmark work Fishes of North and Middle America 1896-98, spelled the common name as “charr.”

Trout and Salmon of North America Robert J. Behnke 2002

After recognizing that Kamchatkan trout were not cutthroat trout, in 1898 Jordan and Evermann classified the cutthroat trout species as “S. clarki” the first name proposed for any member of the species in 1836.

Trout and Salmon of North America Robert J. Behnke 2002

Jordan and Evermann freely admitted to the inadequate state of knowledge on which they based their classification, writing: “It is not unlikely that when the waters of the Northern Hemisphere are fully explored, it will be found that all the black-spotted trout of America, Europe, and Asia are forms of one species, for which the oldest name is ‘Salmo trutta.’”

Trout and Salmon of North America Robert J. Behnke 2002

In part 2 of the 1928 Report of the U.S. Fish Commission, published in 1930, Jordan and Evermann, along with their coauthor, Howard Walton Clark, published their last classification.

Trout and Salmon of North America Robert J. Behnke 2002

In 1902, Jordan and Evermann published a popular version of fish classification in their book American Food and Game Fishes; in this work they became “splitters,” classifying all of the 1896 subspecies as full species.

Trout and Salmon of North America Robert J. Behnke 2002

In 1896, besides the coastal cutthroat trout, Jordan and Evermann recognized the following eight subspecies of cutthroat trout:

Trout and Salmon of North America Robert J. Behnke 2002

Nelson wrote the scientist B.W. Evermann describing trout he had observed in the headwaters of the Río del Presidio drainage: “I regret exceedingly that I failed to get specimens of these Sierra Madre trout, but that does not help us any now.”

Trout and Salmon of North America Robert J. Behnke 2002

The oft-cited 1896-98 and 1902 publications of Jordan and Evermann were the authoritative works of their time on trout classification and distribution.

Trout and Salmon of North America Robert J. Behnke 2002