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Show 470 PROF. ST.-GEORGE MIVART ON THE ALUROIDEA. [June 6, Proteles the scapula is not unlike that of Viverra ; the metacromion is rather larger and more pointed than in Hyana. In Proteles, Hyana, and Crocuta the acromion is shorter than in the Felidce or Viverridce, except sometimes in Eupleres. The angle formed by the axillary margin with the spine of the scapula varies from about 20° (Suricata, Galidictis, Proteles) to 35° (Lion and Tiger). The average angle is a little above 25°. The Clavicle. The clavicle is always very rudimentary or absent; nevertheless in Genetta I found to be about 1"*6. The Humerus. The absolutely longest humerus is 31"*5 (Tiger), the largest Viverrine humerus is 14"*0 (Arctictis). The greatest proportion of the humerus to the spine at 100 is 28*5 (sometimes in Felis), the shortest is 181 (Eupleres). The shortest feline proportion is 23*4 ; the greatest Viverrine proportion is 25*0 (Arctictis). Crocuta is 220, and Proteles 24*8. The Civet's humerus, compared with that of the Cat, is stouter, with the great tuberosity relatively more prominent, and the fossa outside it much deeper and larger. The supinator ridge is also stronger, while the bony bridge enclosing the foramen for the median nerve is more slender. There is sometimes an olecranal foramen. The humerus of the Genet is more like that of the Cat. There is always a condyloid foramen, except in Cynogale, the Galidictina, and the Hyanida. lu Paradoxurus the internal condyle may be much prolonged. In Arctictis the humerus is much broadened out distally, with a rather small condyloid canal and a strong supinator prominence; there is no marked pit outside the great tuberosity. In Cryptoprocta exactly reversed conditions obtain, as the condyloid canal is very large in that genus (at its maximum), and there is a very marked pit outside the great tuberosity, as also in Herpestes, Crossarchus, and Hycena. In Herpestes the humerus is much curved. In Crossarchus the deltoid surface is very prominent, and the development of the supinator ridge and the projection of the internal condyle are at their maximum. The deltoid surface is even more prominent in Suricata. In Hemigalea the humerus is a good deal bowed, the great tuberosity and the supinator ridge are little developed, but the internal condyle is very prominent. In Viverricula, on the contrary, the internal condyle projects so slightly that it is almost effaced. In the Hyanida the internal condyle is also relatively little developed, the deltoid surface is prominent, there is an olecranal perforation, and the pit outside the great trochanter may be wide and shallow as in Hycena, or wide and deep as in Proteles. The Radius and Ulna. The absolutely longest radius is 26"*0 (Tiger) ; its greatest proportional lengths to the spine at 100 are 27*4 (sometimes in Felis) and |