. California fish and game. Fisheries -- California; Game and game-birds -- California; Fishes -- California; Animal Population Groups; Pêches; Gibier; Poissons. Calif. Fish and Game (62)2:163-164. 1976 FIRST RECORD OF ALBINISM IN THE LEOPARD SHARK [TRIAKIS SEMIFASCIATA GIRARD) A leopard shark (Triakis semifasciata Girard, 1854) caught in San Pablo Bay, California, on August 22, 1972, appears to be the first known albino individual of this species. It was caught by James Sturgis, who was fishing with rod and line about km (1 mile) off Hamilton Field, Marin County (ca. lat. 38°04'N, long. 1
. California fish and game. Fisheries -- California; Game and game-birds -- California; Fishes -- California; Animal Population Groups; Pêches; Gibier; Poissons. Calif. Fish and Game (62)2:163-164. 1976 FIRST RECORD OF ALBINISM IN THE LEOPARD SHARK [TRIAKIS SEMIFASCIATA GIRARD) A leopard shark (Triakis semifasciata Girard, 1854) caught in San Pablo Bay, California, on August 22, 1972, appears to be the first known albino individual of this species. It was caught by James Sturgis, who was fishing with rod and line about km (1 mile) off Hamilton Field, Marin County (ca. lat. 38°04'N, long. 122°27'W), in water about 3 m (10 ft) deep. Recognizing the shark as a rarity, Mr. Sturgis gave it to California State Fish and Game Warden Alfred F. Giddings, who promptly had it frozen. Wallace E. Strohschein delivered the specimen, in excellent condition, on September 9,1972, to the Department of Ichthyology, California Academy of Sciences, where it is catalogued as CAS 27159. Immediately after thawing, the leopard shark, a half-grown male, meas- ured 60 cm ( inches) in total length and weighed kg ( lb). It was entirely white except for barely discernible black saddlemarks (Fig- ure 1). None of the other black markings that characterize the normal coloration of this species, mid-dorsal intersaddle marks, inferior intersad- dle marks, or subsaddle marks, as illustrated by Schott (1964), could be distinguished. The irises of the eyes were pink at the time of its capture (Alfred F. Giddings, pers. commun.), as in a true albino. The specimen had no apparent structural abnormality. Its vertebral count appears to fall within the normal variation of this species. As determined from radio- graphs, its total vertebral count was 140 (85 precaudal + 55 caudal). Ten leopard sharks (5 males, 5 females) from San Francisco Bay had total vertebral counts averaging ( precaudal + caudal). One of these had a total count (140) identical to that of the albino specime
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