Reports of Explorations and Surveys; To Ascertain the Most Practicable and Economical Route for a Railroad from the Mississippi River to the Pacific Ocean Volume 10

Reports of Explorations and Surveys; To Ascertain the Most Practicable and Economical Route for a Railroad from the Mississippi River to the Pacific Ocean Volume 10

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1859 edition. Excerpt: ...instead of which, a sharp ridge inconspicuously crenated, and disposed upon a double row of one and four in the following manner: 1 4--4 1. Stn.--Cyprinella, Grd. in Proc. Acad. Nat. Sc. Philad. VIII, 1856, 196. Had the name of Hypsolepis not been preoccupied to designate another genus, it might have been applied with great propriety to the species of the present genus, since the fishes herein included possess that curious character of having the scales higher than long. They replace in the southwest the Plargyri of more northern climes. Though generally smaller than the species of Plargyrus, some do resemble the latter in a very striking manner, whilst others are much shorter and deeper in proportion. The chief differences between the present genus and Plargyrus is to be found in the pharyngeal teeth and the position of the ventrals. To Montana it bears more striking resemblances and real affinities. The position of the ventral fins is the same; the pharyngeal bones are alike also; the teeth are of the same general pattern, but disposed upon a double series in Cyprinella, and upon one only in Moniana. Moreover, in Cyprinella the snout generally protrudes beyond the lower jaw, though the mouth is sub-terminal and its gape slightly oblique. 1. CYPPJNELLA BUBALINA, Grd. Spec. Char.--Body short; Back very much arched. Peduncle of tail slender. Head constituting the fifth of the entire length. Eye large and circular; its diameter entering three times and a half in the length of the side of the head. Jaws equal; posterior extremity of maxillar bone extending to a vertical line drawn a little in advance of the orbit. Dorsal fin higher than long, its anterior margin equidistant between the tip of the snout and the insertion of the caudal. Origin...show more

Product details

  • Paperback | 288 pages
  • 189 x 246 x 15mm | 517g
  • Rarebooksclub.com
  • United States
  • English
  • black & white illustrations
  • 1236922026
  • 9781236922021