. California fish and game. Fisheries -- California; Game and game-birds -- California; Fishes -- California; Animal Population Groups; Pêches; Gibier; Poissons. NOTES ON THE BIOLOGY OF THE SACRAMENTO HITCH (LAVINIA E. EXILICAUDA) OF CLEAR LAKE, LAKE COUNTY, CALIFORNIA^ By Gaeth I. Murphy Bureau of Fish Conservation California Division of Fish and Game Introduction The hitch (Figure 30) is a member of the carp family (Cyprinidae). The vernacular name ''hitch" is of Indian origin. The Pomo tribes living on the north and west sides of Clear Lake apply this name to it, but those living on th
. California fish and game. Fisheries -- California; Game and game-birds -- California; Fishes -- California; Animal Population Groups; Pêches; Gibier; Poissons. NOTES ON THE BIOLOGY OF THE SACRAMENTO HITCH (LAVINIA E. EXILICAUDA) OF CLEAR LAKE, LAKE COUNTY, CALIFORNIA^ By Gaeth I. Murphy Bureau of Fish Conservation California Division of Fish and Game Introduction The hitch (Figure 30) is a member of the carp family (Cyprinidae). The vernacular name ''hitch" is of Indian origin. The Pomo tribes living on the north and west sides of Clear Lake apply this name to it, but those living on the east and south shores call it "; The genus Lavinia is represented by a single species, indigenous to the Sacramento-San Joaquin drainage basin and several minor but related drainages. Con- siderable material on its distribution and svstematics is to be found in Rutter (1903), Snyder (1913), and Miller (1945).. Figure 30. Male hitch, inches long, captured at Scotts Creek, April 18, 1947 The data presented in this paper were derived from collections and observations made at Clear Lake and its tributary streams during 1946 and 1947 and from observations made by Shapovalov in 1940. Clear Lake is a large, lowland lake in central California containing a typical Cali- fornia warm-water assemblage of fishes. Its surface area is approximately 40,000 acres. All measurements of fish were made to the nearest millimeter, using "fork ; Weights were taken with a spring balance reading to the nearest 25 grams. Scale samples were taken from the side of the fish, above the lateral line and below the dorsal fin. General Ecology of the Hitch Through its range as a whole the hitch inhabits lowland areas typi- fied by sluggish streams and sloughs. Although frequently' it lives in lakes and ponds, it apparently requires gravel-bottomed streams for successful 1 Submitted for publication March, 1948. All photographs, except Fig. 32, by the author. ( 101 ). Please n
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