. An introduction to the study of mammals living and extinct. Mammals. Fig. 19S.—Lateral view of skull of American Marmot {Arctomys vionax). Famib/ Sciueid-E. Arboreal or terrestrial forms, i^dth cylindrical hairy tails, with- out scales, and ^Yith twelve or thirteen pairs of ribs. Skull (Figs. 198, 199) with distinct postorbital processes; infra- orbital opening small; palate broad; j) f ; first upper pre- molar very small or deciduous; molars rooted, tubercular. Subfamily Seixip- inse.—Incisors com- pressed ; form slen- der; tan long and hairy. Cosmopolitan (excluding Australian region). Thi
. An introduction to the study of mammals living and extinct. Mammals. Fig. 19S.—Lateral view of skull of American Marmot {Arctomys vionax). Famib/ Sciueid-E. Arboreal or terrestrial forms, i^dth cylindrical hairy tails, with- out scales, and ^Yith twelve or thirteen pairs of ribs. Skull (Figs. 198, 199) with distinct postorbital processes; infra- orbital opening small; palate broad; j) f ; first upper pre- molar very small or deciduous; molars rooted, tubercular. Subfamily Seixip- inse.—Incisors com- pressed ; form slen- der; tan long and hairy. Cosmopolitan (excluding Australian region). This subfamily includes the true Squirrels, of which seven existing genera are usually recognised. &!«;«—Tail long and bushy; ears generally well developed pointed, often tufted; feet adapted for climb- ing, the anterior hav- ing foui' digits and a rudimentary poUex, and the posterior with five digits, all of which have long, curved, and sharp claws. Mammte, from four to six. Skull (Fig. 19 9) lightly built, ^vith long postorbital processes. Penultimate upper premolar, when present, minute. ' Proc. Zool Soc. 1SS2, p. S. - Linn. .s>/. y„t. uth ed. vol. i. p. S6 ,17(. Fig. Aspect of cranium of (,s«i<ras bicolor). Xatm-al 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 Flower, William Henry, 1831-1899; Lydekker, Richard, 1849-1915. London, A. and C. Black
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Keywords: ., bookauthorly, bookcentury1800, bookdecade1890, booksubjectmammals
