Carl Leavitt Hubbs (October 19, 1894 – June 30, 1979) was an American ichthyologist.
From 1917 until 1920 Hubbs served as the assistant curator of fish, amphibians and reptiles at the Field Museum of Natural History in Chicago. He married Laura Cornelia Clark on June 15, 1918, with whom he would have three children. His wife, who had also studied at Stanford, having received her BA in 1915 and her Masters in 1916, taught math.
In 1920, he took the position of curator of fish at the Museum of Zoology at the University of Michigan, a position he held for 24 years. In 1927, while working at the University of Michigan, he received his Ph.D., writing his dissertation on The Consequences of Structural Modifications of the Developmental Rate in Fishes Considered in Reference to Certain Problems of Evolution. Hubbs himself along with members of team and students contributed to the enrichment of the museum's collection. In 1929, he participated in an academic trip to Java where he collected five tons of specimens. Hubbs began to study hybridization among different species of fish.
Hubbs, Carl Leavitt. 1920. "A note on the synonymy of the cichlid fish of Cuba and Barbadoes, Cichlasoma tetracanthus". Occasional Papers of the Museum of Zoology, University of Michigan. (90):1-8 (ffm03549)
Hubbs, Carl Leavitt. 1924. "Studies of the fishes of the order Cyprinodontes". Miscellaneous Publications, Museum of Zoology, University of Michigan. (13):1-31 (ffm04592)
Hubbs, Carl Leavitt. 1924. "Studies of the fishes of the order Cyprinodontes. V. Notes on species of Goodea and Skiffia". Occasional Papers of the Museum of Zoology, University of Michigan. (148):1-8 (ffm04528)
Hubbs, Carl Leavitt. 1926. "Studies of the fishes of the order Cyprinodontes. VI". Miscellaneous Publications, Museum of Zoology, University of Michigan. (16):1-86 (ffm04579)
Hubbs, Carl Leavitt. 1929. "Studies of the fishes of the order Cyprinodontes. VIII. Gambusia gaigei, a new species from the Rio Grande". Occasional Papers of the Museum of Zoology, University of Michigan. (198):1-11 (ffm04576)
Hubbs, Carl Leavitt & Laura C. Hubbs. 1932. "Apparent parthenogenesis in nature, in a form of fish of hybrid origin". Science. (76):628-630 (ffm01183)
Hubbs, Carl Leavitt. 1932. "Studies of the fishes of the order Cyprinodontes. XI. Zoogoneticus zonistius, a new species from Colima, Mexico". Copeia. (2):68-71 (ffm04502)
Hubbs, Carl Leavitt & Myron Gordon. 1934. "Chromosome numbers in Xiphophorin fishes". American Naturalist. 68(718):446-455 (ffm01019)
Hubbs, Carl Leavitt. 1935. "Fresh-water fishes collected in British Honduras and Guatemala". Miscellaneous Publications, Museum of Zoology, University of Michigan. (28):13-15 (ffm00252)
Hubbs, Carl Leavitt. 1936. "Fishes of the Yucatan Peninsula". Carnegie Institute Washington Publications. (457)157-287 (ffm00250)
Hubbs, Carl Leavitt. 1937. "Fishes from the San Carlos Mountains". Geology & Biology of the San Carlos Mountains. University of Michigan Studies, Science Series. 12:295-297 (ffm00011)
Hubbs, Carl Leavitt. 1938. "Fishes from the caves of Yucatan". Carnegie Institution of Washington Publications. (491):261-295 (ffm00347)
Hubbs, Carl Leavitt & C.L. Turner. 1939. "Studies of the fishes of the order Cyprinodontes. XVI. A revision of the Goodeidae". Miscellaneous Publications, Museum of Zoology, University of Michigan. (42):1-80 (ffm04500)
Hubbs, Carl Leavitt & R.M. Bailey. 1940. "A revision of the black basses (Micropterus and Huro with descriptions of four new forms". Miscellaneous Publications, Museum of Zoology, University of Michigan. (48):1-51 (ffm00335)
Hubbs, Carl Leavitt & R.R. Miller. 1941. "Dorosoma smithi, the first known gizzard shad from the Pacific drainage of middle America". Copeia. 1941(4):232-238 (ffm00356)
Hubbs, Carl Leavitt & M. Gordon. 1943. "Studies of cyprinodont fishes. XIX. Xiphophorus pygmaeus, new species from Mexico". Copeia. 1943(1):31-33 (ffm00064)
Hubbs, Carl Leavitt. 1950. "Studies of cyprinodont Fishes. XX. A new subfamily from Guatemala, with ctenoid scales and a unilateral pectoral clasper". Miscellaneous Publications, Museum of Zoology, University of Michigan. (78):1-28 (ffm00046) (streszczenie)
Hubbs, Carl Leavitt & C.L. Hubbs. 1958. "Notropis saladonis, a new cyprinid fish endemic in the Río Salado of northeastern Mexico". Bulletin of the Museum of Comparative Zoology. 1958(4):297-307 (ffm00143)
Hubbs, Carl Leavitt & R.R. Miller. 1965. "Studies of Cyprinodont fishes. XXII. Variation in Lucania parva, its establishment in western United States, and description of a new species from an interior basin in Coahuila, México". Miscellaneous Publications, Museum of Zoology, University of Michigan. (127):1-104 (ffm00209)
Hubbs, Carl Leavitt & R.R. Miller. 1974. "Dionda erimyzonops, a new, dwarf cyprinid fish inhabiting the Gulf coastal plain of Mexico". Occasional Papers of the Museum of Zoology, University of Michigan. (671):1-17 (ffm04596)
Hubbs, Carl Leavitt & R.R. Miller. 1975. "Notropis tropicus, a new cyprinid fish from eastern Mexico". Southwestern Naturalist. 20(1):121-131 (ffm00147)
Hubbs, Carl Leavitt & R.R. Miller. 1977. "Six distinctive cyprinid fish species referred to Dionda inhabiting segments of the Tampico embayment drainage of Mexico". Transactions of the San Diego Society of Natural History. 18(17):267-336 (ffm00121)
Hubbs, Carl Leavitt & R.R. Miller. 1978. "Notropis panarcys, n. sp., and N. proserpinus, cyprinid fishes of subgenus Cyprinella, each inhabiting a discrete section of the Rio Grande complex". Copeia. 1978(4):582-592 (ffm00114)