. Ecological animal geography; an authorized, rewritten edition based on Tiergeographie auf ockologischer grundlage . Fig. 91.—Tadpoles from mountain streams: left to right, Bufo penangensis (Malay Peninsula); Rana larutensis (Malay Peninsula); Rana jerboa (Java). After Flower, Laidlaw, and van Kampen. different taxonomic groups. The whole mouth of armored catfishes, which are found in great numbers in South America (, Lithogenes villosus in the rapids of rivers in Guiana, or Placostomus, Fig. 90), is developed into a sucker, as is the ventral surface of the cyprinid, Gas- tromyzon, in Nor

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. Ecological animal geography; an authorized, rewritten edition based on Tiergeographie auf ockologischer grundlage . Fig. 91.—Tadpoles from mountain streams: left to right, Bufo penangensis (Malay Peninsula); Rana larutensis (Malay Peninsula); Rana jerboa (Java). After Flower, Laidlaw, and van Kampen. different taxonomic groups. The whole mouth of armored catfishes, which are found in great numbers in South America (, Lithogenes villosus in the rapids of rivers in Guiana, or Placostomus, Fig. 90), is developed into a sucker, as is the ventral surface of the cyprinid, Gas- tromyzon, in North Spines on the ventral surface are often helpful additions. The tadpoles of tropical mountain rivers and brooks which have similar adaptations also belong to different groups of Salientia (Fig. 91) ;18- 19' 20 these animals cling so tightly that they can be loosened only with great difficulty. Finally, an attachment by means of spun fibers also occasionally

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Keywords: ., bookcentury1900, bookcollectionbiodive, booksubjectanimalecology