OCR Text |
Show 18S0.] DENTAL CHARACTERS OF THE CANIDAE. 259 Length of ~x 16*1 » TO72 13'3 =75 9'8 „ palate 138 Breadth of palate .... 66 Thus the upper jaw is both short and narrow; and the slenderness of the rami of the mandible is not less remarkable, though in this respect C. cancrivorus and C. procyonoides approach Otocyon. TABLE X.-Cranial and Dental Measurements of Otocyon lalandii. I. II. III. IV. V. VI. Total length 114 123 112 113 112 Length of palate 57 61 53 54 58 59 Breadth , 28 26 27 27 29 27 Length of basicranial alis 40 41 43 41 Length of p - 57 6-5 5-5 5-3 55 5 Breadth „ in front 5 5*5 5*8 47 5 4 Length of 5-1 5 5 5 5 5*5 6 5 Breadth „ 6*2 8 7 6 7 6-5 Length of ^ 5 5*5 5 5 5 4-5 Breadth „ 6*5 8 7 6 5 6*5 6*5 Length o f - 45 5 4 3*5 4*5 4 Breadth „ 6 6 6 5 5*5 5*5 Length of -^- 4 Breadth ,, Length o f - , 6 7 6*5 6-5 7 6 6 6 6 5 - 5 6 5 " m. 2 5 6 5 4*3 4*5 4 " TO. 3 3 . 5 4 3 3 3*3 * " TO. 4 On inspection of tbe foregoing tables of the actual and the proportional measurements of the skulls and teeth, the wide differences between Otocyon and all the other Canidae become apparent Confining our attention for the present to those teeth in Otocyon which answlr to those met with in other Canidaa, it is obvious that the Tectorial teeth are much smaller in proportion to thejias.cramal axis, that the difference between - j - and -# -2 and m 3, is much less, and that *^ is never greatly longer and may be shorter than TO. 1 * Fallen out on both sides. |