. An introduction to zoology [microform] : for the use of high schools. Zoology; Zoologie. 116 HIOII SCHOOL ZOOLOGY. I I, uliields on the back and behind tho brotust bone, which encase the creutures in an almost continuouH coat of niaiL Inii)ortant differences from tho Lizards exist in tho endoskeleton; the great elongation of tho skull, with tho formidable teeth lodged in sockets, tho form of tho nasal cavity, with tho anterior nostrils at the tip of the snout and the posterior far back in the mouth, tho intimate union of all the cmnial and facial bones with each other, etc. Many peculi
. An introduction to zoology [microform] : for the use of high schools. Zoology; Zoologie. 116 HIOII SCHOOL ZOOLOGY. I I, uliields on the back and behind tho brotust bone, which encase the creutures in an almost continuouH coat of niaiL Inii)ortant differences from tho Lizards exist in tho endoskeleton; the great elongation of tho skull, with tho formidable teeth lodged in sockets, tho form of tho nasal cavity, with tho anterior nostrils at the tip of the snout and the posterior far back in the mouth, tho intimate union of all the cmnial and facial bones with each other, etc. Many peculiarities of tho other organs point to a greater specialisation than exists in the other Reptiles, thus the brain is of a higher type, and the heart is subdivided into four compartments, although there is still a certain mixture of the venous and arterial blood immediately outside it. The order is oviparous like m^st Reptiles, tho eggs, which are very fragile from the small i)ercentage of lime in the shell, being laid in the sandy banks of the streams in which they live. 22. Although the Crocodilia hardly number more than twenty species at the })i'esent day, yet the Fossil si>ecie8 are fur more nu- merous than is the case in any other of the four orders of livirg. Hk. 84—Britoration of PlesuxRuirua A> Reptiles. The earliest of them had amphicoelous vertebrae, and a much more complete exoskeleton than the living Crocodiles, probably for protection against the gigantic aquatic Reptiles. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Wright, R. Ramsay (Robert Ramsay), 1852-1933. Toronto : Copp, Clark
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Keywords: ., bookcentury1800, bookdecade1880, bookpublishe, booksubjectzoology
