Catalogue of the Fishes in the British Museum
Catalogue of the Fishes in the British Museum
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Types of the species, in bad state. From Dr. Bleeker's Col- lection.
Digitized by Qoo^^ PEjacopsiDiE. 207 Fam. 8. PERCOPSIDiE.
Percopsides, Agass, Lake Superior, p. 286.
Body covered with ctenoid scales. Margin of the upper jaw formed by the intermaxillary; opercular apparatus complete. Barbels none. Gill-opening wide ; pseudobranchisB? Adipose fin present. Ovaries'?
(probably as in Salmonidse). Pyloric appendages] Freshwater fishes of North America.
The characters of this family are but incomp...letely known ; as far as our present knowledge reaches, it would appear that it has some affinity to the ffaplochitonidce, from which it differs in having ctenoid scales.
Only one genus is known.
1. PEBCOPSIS.
Percopsis, Agassiz, h c, p. 284 This genus reminds us in its general habit of Acerina, Scales of moderate size ; head naked. The dorsal fin occupies nearly the middle of the length of the fish; and the ventrals, which are eight- rayed, correspond to its anterior rays. Adipose fin small ; caudal forked; anal short.
What to read after Catalogue of the Fishes in the British Museum?
You can find similar books in the "Read Also" column, or choose other free books by British Museum (Natural History). Dept. of Zoology to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
Types of the species, in bad state. From Dr. Bleeker's Col- lection.
Digitized by Qoo^^ PEjacopsiDiE. 207 Fam. 8. PERCOPSIDiE.
Percopsides, Agass, Lake Superior, p. 286.
Body covered with ctenoid scales. Margin of the upper jaw formed by the intermaxillary; opercular apparatus complete. Barbels none. Gill-opening wide ; pseudobranchisB? Adipose fin present. Ovaries'?
(probably as in Salmonidse). Pyloric appendages] Freshwater fishes of North America.
The characters of this family are but incomp...letely known ; as far as our present knowledge reaches, it would appear that it has some affinity to the ffaplochitonidce, from which it differs in having ctenoid scales.
Only one genus is known.
1. PEBCOPSIS.
Percopsis, Agassiz, h c, p. 284 This genus reminds us in its general habit of Acerina, Scales of moderate size ; head naked. The dorsal fin occupies nearly the middle of the length of the fish; and the ventrals, which are eight- rayed, correspond to its anterior rays. Adipose fin small ; caudal forked; anal short.
What to read after Catalogue of the Fishes in the British Museum?
You can find similar books in the "Read Also" column, or choose other free books by British Museum (Natural History). Dept. of Zoology to read onlineMoreLess
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