Carl H. Eigenmann

Carl Henry Eigenmann (March 9, 1863 – April 24, 1927) was a German-American ichthyologist of the late nineteenth and early twentieth centuries who, along with his wife Rosa Smith Eigenmann and his zoology students, is credited with identifying and describing for the first time 195 genera containing nearly 600 species of fishes of North America and South America. Especially notable among his published papers are his studies of the freshwater fishes of South America, the evolution and systematics of South American fishes, and for his analysis of degenerative evolution based on his studies of blind cave fishes found in parts of North America and in Cuba. His most notable works are The American Characidae (1917–1929) and A revision of the South American Nematognathi or cat-fishes, in addition to numerous published papers such as "Cave Vertebrates of North America, a study of degenerative evolution" (1909) and "The fresh-water fishes of Patagonia and an examination of the Archiplata-Archelenis theory" (1909).

Eigenmann was an alumnus of Indiana University, an instructor/professor in IU's department of zoology, and an administrator at IU's Bloomington, Indiana, campus for more than forty years. He was also the first dean of the IU graduate school from 1908 to 1927. In addition to his duties at IU, Eigenman was honorary curator of fishes at the Carnegie Museum in Pittsburgh, Pennsylvania, from 1909 to 1918. Eigenmann was elected to the National Academy of Sciences in 1923. He was also a fellow of the American Association for the Advancement of Science, a member and past president of the Indiana Academy of Science, an honorary member of the California Academy of Sciences and of the Sociedad de Ciencias Naturales of Bogotá, Colombia, as well as a member of other scientific organizations, including Sigma XI, a science honorary, and Phi Beta Kappa.

Early life and education Carl Henry Eigenmann was born on March 9, 1863, in Flehingen, Grand Duchy of Baden, to Philip and Margaretha (Lieb) Eigenmann. In 1877, at the age of fourteen, he emigrated to the United States with an uncle and settled in Rockport, Indiana.

In 1879, at the age of sixteen, Eigenmann enrolled at Indiana University in Bloomington, Indiana, intending to study law, Latin, and Greek. He became a member of Sigma Chi fraternity and then became interested in zoology after taking a biology course under David Starr Jordan. He then decided to pursue a career as an ichthyologist.

While Eigenmann was still at student at IU, his first published paper, "Notes on skeletons of Etheostomatinae", co-authored with Jordan, was published in the Proceedings of the National Museum in 1885. "A review of the genera and species of Diodontidae found in American waters", the first of many papers that Eigenmann authored on his own, was published in the Annals of the New York Academy of Science in 1886, when he was twenty-three years old.

Marriage and family Through his IU professor, David Starr Jordan, Eigenmann met Rosa Smith, a former IU student from San Diego, California, who was already becoming known for her work on West Coast fishes. Eigenmann corresponded with Smith while she was living in San Diego, and traveled to California, where the couple married at Smith's home on August 20, 1887. Rosa Smith Eigenmann, also an ichthyologist, collaborated with her husband on several research projects after their marriage, but discontinued her own research pursuits in 1893, due to family responsibilities; however, she continued to edit her husband's research papers.

The Eigenmanns had five children. Lucretia Margaretha Eigenmann (1889–1965), the eldest, was mentally disabled; their son, Theodore Smith Eigenmann (1893–1970), was eventually institutionalized after serving in the army in 1918. The three other Eigenmann children pursued professional careers. Charlotte Elizabeth Eigenmann (1891–1959) graduated from Stanford University and pursued an editorial career. Adele Rosa (Eigenmann) Eiler (1896–1978) accompanied her father on the Irwin Expedition to South America in 1918–19 and received a medical degree from Indiana University in 1921. Adele later married John Oliver Eiler, and they moved to San Diego. Their young child, Thora Marie Eigenmann (1901–1968), a graduate of the University of Missouri, became a writer.

Career In 1887, shortly after their marriage, the Eigenmanns went to Harvard University, where they spent a year studying the collections of fishes The first of their first co-authored publications included "A list of the American species of Gobiidae and Callionymidae, with notes on the specimens contained in the Museum of Comparative Zoology, at Cambridge, Massachusetts," in the Proceedings of the California Academy of Sciences (1888); "Preliminary notes on South American Nematognathi" in the Proceedings of the California Academy of Sciences (1888); and "South American Nematognathi" in the American Naturalist (1888). This series of papers also made the "Eigenmann and Eigenmann" authors well known in the United States and in Europe. The Eigenmanns also continued to research and write about South American fishes. Major works included A revision of the South American Nematognathi or cat-fishes (1890) for a California Academy of Sciences publication and another of their co-authored works, "A catalogue of the fresh-water fishes of South America" (1892), that appeared in the Proceedings of the U.S. National Museum.

Eigenmann, who began his forty-year career at IU as an instructor of zoology in 1886–87, returned to Bloomington, Indiana, in 1891, when David Starr Jordan left IU to become the first president at Stanford University. Eigenmann was appointed as Jordan's replacement at IU as a professor of zoology. In addition to teaching at IU, Eigenmann was named director of the Biological Survey of Indiana in 1892 and founded a freshwater biological station in northern Indiana in 1895, serving as the first director of the station until the early 1920s. Subsequent explorations focused on the blind vertebrates, including cave fishes and salamanders, found in Indiana, Kentucky, Texas, Missouri, and Cuba.

After a trip to the University of Freiburg in 1906–07, Eigenmann was named the first dean of the IU graduate school in 1908, and retained the post until his death in 1927. While he remained at IU, Eigenmann also served from 1909 to 1918 as honorary curator of fishes at the Carnegie Museum in Pittsburgh, Pennsylvania.

In 1906, he received an invitation to join John C. Branner on an expedition to Brazil. Eigenmann could not attend but he did not want to miss the opportunity to gain from Branner's knowledge. He convinced William Jacob Holland with the Carnegie Museum to sponsor Indiana University student John D.Haseman in his stead. Haseman was late getting to Brazil in 1907 but met Branner as he was returning home and was given much valuable information. Haseman returned home in 1910 with a collection of fishes second only in size to Harvard's Agassiz collections.

In 1907 he secured support from the Carnegie Museum for a trip to South America. Eigenmann arrived in Georgetown, Guyana, on September 6, 1908, when the Carnegie British Guiana Expedition began. They returned to the United States with 25,000 specimens, resulting in the description of 28 new genera and 128 new species. In addition, two of Eigenmann's important works from his field research were published after his return from Guyana: "Cave Vertebrates of North America, a study of degenerative evolution" (1909) and "The fresh-water fishes of Patagonia and an examination of the Archiplata-Archelenis theory" in volume three of Reports of the Princeton University expeditions to Patagonian 1896–1899 (1909). Eigenmann made subsequent trips to South America that included Colombia (1912)(where he caught malaria)

Later years During World War I Eigenmann remained in the United States, where he spent his time writing up reports on his previous expeditions. In addition to his administrative duties at IU, Eigenmann worked in the university laboratory at IU and at the Carnegie Museum in Pittsburgh. The first two parts of his five-volume masterwork, The American Characidae, were published in 1917 and 1918; volume three was published in 1921. Due to his failing health, manuscripts for the final two volumes were completed in 1925, with the assistance of George S. Myers on the final volume. The last two volumes were published posthumously in 1927 and 1929, respectively.

The high altitude of his final trip to South America in 1918–19 weakened his health and began years of decline. No longer able to conduct field research on his own, Eigenmann spent his later years assisting younger colleagues in mounting their own trips and sent some of his students, including Nathan Everett Pearson, on expeditions to the Atlantic slope of North America. his remains are interred in San Diego. Especially notable are his published papers relating to his studies of the freshwater fishes of South America, the evolution and systematics of South American fishes, and for his analysis of degenerative evolution based on his studies of the blind cave fishes found in parts of North America and in Cuba. His studies of blind cave fishes led him to conclude that "the degenerative characteristics of subdued coloration and of blindness become inherited when they have adaptive environmental value."

Eigenmann's students remembered him as an "inspiring teacher" who encouraged students to "find things for themselves."

Honors and tributes Eigenmann was a member of numerous scientific organizations, including the American Geographical Society and the American Society of Naturalists, among others. He was also a fellow of the American Association for the Advancement of Science, a member and past president of the Indiana Academy of Science, an honorary member of the California Academy of Sciences, and of the Sociedad de Ciencias Naturales of Bogotá, Colombia. In addition, Eigenmann was a member of Sigma XI, a science honorary, as well as Phi Beta Kappa. He was elected to the American Philosophical Society in 1917 and the National Academy of Sciences in 1923.

Astroblepus eigenmanni is a species of catfish of the family Astroblepidae named after Eigenman.

The fish Carlana eigenmanni is named after him.

The fish Copella eigenmanni is named after him.

Eigenmannia spp. ; a South American knifefish.

Eigenmann Hall

In 1970, a newly constructed residence hall building on the Indiana University's Bloomington campus, designed by Eggers & Higgins to be the tallest building in Monroe County, Indiana, was named after Carl H. Eigenmann. Until 1998 the residence hall was reserved for the graduate students, as well as other students who were either over the age of twenty-one or admitted as foreign students. Since 1998 the Eigenmann Residence Center had housed American undergraduate students as well.

Selected published works Eigenmann was the author or co-author of 228 publications, including twenty-five with his wife, Rosa Smith Eigenmann.

Authored: "A review of the genera and species of Diodontidae found in American waters," Annals of the New York Academy of Science (1886) 3: 297–311 "The fresh-water fishes of Patagonia and an examination of the Archiplata-Archelenis theory," Reports of the Princeton University expeditions to Patagonian 1896–1899 (1909) 3:227–374 (Princeton, New Jersey: Princeton University, 1905–11) "The Freshwater Fishes of British Guiana, including a study of the ecological grouping of species, and the relation of the fauna of the plateau to that of the lowlands," Memoirs of the Carnegie Museum (1912) 5:1–578 "On Apareiodon, a new genus of characid fishes," Annals of the Carnegie Museum (1916) 10: 71–76 The American Characidae, In Memoirs of the Museum of Comparative Zoology at Harvard College (1917–29) 43:1–558 "The fishes of the rivers draining the western slope of the Cordillera Occidental of Colombia, Rios Atrato, San Juan, Dagua, and Patia," (1920) Indiana University Studies 7, no. 46:19 "The fishes of Western South America. Part I." (1922) Memoirs of the Carnegie Museum 10, no. 1: 1–346 "Cyprinodon californiensis," The West-American Scientist (1888) 5: 3–4 "Notes on some Californian fishes, with descriptions of two new species," Proceedings of the U.S. National Museum (1888) 11: 463–66

Co-authored with Clarence Hamilton Kennedy: "The Leptocephalus of the American eel and other American Leptocephali," Bulletin of the United States Fish Commission (1901) 21:81–92

Co-authored with Arthur Wilbur Henn and Charles Branch Wilson: "New fishes from Western Colombia, Ecuador, and Peru," Indiana University Studies (1914)19: 1–15