Présentation de l'éditeur
By John N. Cobb. NATURAL HISTORY OF THE COD. Strange to relate, while the fishery for Pacific cod has been prosecuted since early in the sixties, scientists are not yet agreed as to the proper name for the species. According to Beana Most writers have referred to it under the name of Gadus macrocephalus, which was bestowed by Tilesius upon the Kamchatkan cod, the figure of which suggests that it was based upon a deformed individual. Cope, in 1873, described the young of the common Alaska cod as a new species, Gadus auratus, from specimens collected by Prof. George Davidson, of the United States Coast Survey, at Unalaska. Steindachner, in the Proceedings (S itzungsberichte) of the Vienna A cademy, lxi, 1, 1870, adopts the name G. macrocephalus for a large cod taken in De Castries Bay (mouth of Amur River), Siberia. In this example the length of the head is contained exactly three times in the total length to the extreme end of the pointed caudal peduncle. The same proportion may, however, be found in any place where large numbers of Gadus morrhua are taken, and it can readily be proven to be only a matter of individual variation. In the summer of 1880, the late Prof. Spencer F. Baird, then United States Commissioner ofF ish andF isheries, sent Dr. Tarleton H. Bean to Alaska for the purpose of investigating its fish and fisheries, and he made the first extended report on the Pacific cod that had been made up to that time. As a result of his investigations, he considers the Atlantic and Pacific cod as of the same species. Jordan andE vermannc call it G. macrocephalus, and in justification of this state: In external respects we recognize no distinction between this species [referring to a specimen 20 inches long taken in theS trait of Juan de Fuca by the A lbatross] and the common eastern codfish, except that the head seems larger. They also quoteD r. Gilbertd a
(Typographical errors above are due to OCR software and don't occur in the book.)
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