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Show 1892.] MILK-DENTITION OF PROCAVIA CAPENSIS. 49 15. HUXLEY, T. II. Manual Vert. Anat. 1871. 16. . "Evolution and the Arrangement of the Vertebrata." P. Z. S. 1880, p. 655. 17. K R A U S E . Anat. d. Kaninchens. Leipzig, 1884, p. 198. 18. KLTKENTHAL, W . "Bemerkungen ii. d. Saugetier-Bezahnung." Anat. Anz. 1891, pp. 364, 658. 19. LATASTE, F. " S. 1. Systeme Dentaire d. Daman." Ann. Mus. Genov. (2) t. iv. (xxiv.) 1886, p. 5. 20. M I L N E - E D W A R D S . Mammif. 1868. 21. . Lecons s. 1. Physiol, t. 6 (1860). 22. M A R S H A L L & H U R S T . Practical Zoology, 2nd ed. 1888. 23. O W E N , R. Comp. Anat. Vert. vol. iii. p. 356 (1868). 24. . Odontography. 25. PALLAS. Miscell. Zool. 1776, p. 34. 26. T H O M A S , O. " Milk-Dentition of Orycteropus." Proc. Roy. Soc. vol. xlvii. 1889-90, p. 246. 27. . " Homologies and succession of Teeth in DasyuridcE." Phil. Trans, vol. 178. B. 1887, p. 443. 28. W A G N E R , A. Schreber's Die Saugethiere, 1844, Bd. 4, p. 307. 29. W A T E R H O U S E .E XPNLaAtN.A HTiIstO.N M OaFm mP.L AvTolE. I Iii.., 1848. Milk-dentition of Hyrax capensis and Lepus cuniculus. n = nasal. pmx=premaxilla. mx=maxilla. md=mandible. »zs=premaxillo-maxillary suture. di1, di1, di3 = upper deciduous incisors. dilt di2, di3=\ov/ev deciduous incisors. pi1,pvi= upper permanent incisors. pix-lower permanent incisor. c=upper canine ; c1=lower canine. I, II, III, IV"=tbe 4 deciduous premolars. d.pm=deciduous premolars. m 1 = lst upper molar; m 1 = lst lower molar. ^dentine; e=enamel; /=fang; p.c=pulp-cavity. Fig. 1. Clarified jaws of a festal Hyrax, showing the teeth in situ, X 4. 2. Enlarged drawings of the 2nd and 3rd upper incisors {di2, di3) and the lower canine (cj of the above, X 50. 3. Clarified vertical longitudinal section through the premaxilla of a Rabbit, showing the relation of the permanent front incisor (pi1) and the deciduous (di2) and permanent (pi2) second incisor. 4. Clarified jaws of a foetal Babbit, shortly before birth, to show the vestigial milk anterior incisors (di1 and dit). 5. Enlarged drawing of the vestigial anterior milk-incisors of the Eabbit, x 100. PROC. ZOOL. SOC-1852, No. IV. |