Smithsonian miscellaneous collections . Fig. 81.—Discognathus lamia, female. After HeckeL A characteristic Asiatic genus represented by a number of speciesis Discognathus. It is related to the barbels and, like the typicalspecies of that genus, has two pairs of barbels and three rows ofpharyngeal teeth, but the lip is transformed into a subcircularsuctorial disk with free margins. The air-bladder is small, especially. Fig. 82.—Discognathus lainta, male. After Day. its hinder portion. The males of the lamta, in the height of thebreeding season, may develop a remarkable subfrontal prominenceand
Smithsonian miscellaneous collections . Fig. 81.—Discognathus lamia, female. After HeckeL A characteristic Asiatic genus represented by a number of speciesis Discognathus. It is related to the barbels and, like the typicalspecies of that genus, has two pairs of barbels and three rows ofpharyngeal teeth, but the lip is transformed into a subcircularsuctorial disk with free margins. The air-bladder is small, especially. Fig. 82.—Discognathus lainta, male. After Day. its hinder portion. The males of the lamta, in the height of thebreeding season, may develop a remarkable subfrontal prominenceand this, as well as the snout, is beset with spiniform tubercles. Asingular appearance is thus imparted to the head and, as the mouthis inferior and concealed from observation, one might mistake, atfirst glance, the cleft between the frontal prominence and snout forthe mouth. Females have the ordinary barbel-like head and the I gill] NOTEWORTHY EXTRA-EUROPEAN CYPRINIDS 325 contrast between them and males is very striking. The lamta (Dis-cognathus lamta) has a wide range in Asia, ranging from Syria intoIndia and still further eastward, and is common in the affluents ofthe Jordan and the Lake of Gennesaret; it also extends into Abys-
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Keywords: ., bookauthorsm, bookcentury1800, bookdecade1860, booksubjectscience
