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Show 1882.] PROF. ST.-GEORGE MIVART O N THIS ALUROIDEA. 469 THE APPENDICULAR SKELETON. The Pectoral Limb. The proportion borne by the entire pectoral limb (humerus, radius, and manus) to the spine-the length from the front of the atlas to the hinder end of the sacrum being taken as 100-is never more than 77*9 (as sometimes in Felis), or less than 42*3 (Viverricula). The greatest proportion amongst the Viverrida is 66*4 (Suricata) ; the shortest found by me in the Felida was 52*9 (F. eyra). The Scapula. The extreme length of the scapula compared with of the spine (estimated as before) is as 21*0 to 100, as sometimes in Felis. In that genus I have found 18*6 to be the minimum proportion. In the Viverrida it varies from 11*9 (Nandinia) to 18*9 (Cynictis). In Proteles it is 19*7, and in Crocuta 20*6. The Civets have the scapula much more in tbe shape of a parallelogram than have the Cats, the preaxial border not being so convex. The metacromion is not so much developed ; and the proportion borne by the infraspinatus fossa to the supraspinatus fossa is greater, as also in the Genets, in which the scapula is otherwise more feline. Fossa and Paradoxurus are intermediate between Genetta and Viverra in the form of the scapula; but the convexity of the preaxial border is generally situate nearer to the glenoid surface than it is in the Genet. In Cgnogale the scapula is much like that of the Civet, but the prominence of its preaxial margin is more rectangular in outline and less rounded. Arctictis resembles Paradoxurus; but its infraspinatus fossa is still larger relatively ; the spine is but little prominent, and the metacromion quite rudimentary. In Herpestes the metacromion is well developed. There is sometimes a prominence for the teres major; and the proportional size of the infraspinatus fossa may not be greater than in the Cat. In Crossarchus there is sometimes so sharp a prominence from the glenoid end of the convexity of the preaxial border as to form a deep suprascapular notch. The metacromion is well developed, as also in Suricata (where its apex is sharply bent backwards) ; the outer surface of the scapula is in this genus singularly concave. In Galidia, the convexity of part of the preaxial margin may be very great; but here, as seems to be generally the case, there is much individual variation in the form of the scapula. In Eupleres the metacromion is well developed, but the acromion may be very short. In Cryptoprocta the scapula is very like that of some Cats; the infraspinatus fossa is not so large relatively as in Genetta ; the metacromion is well developed. In Hycena the preaxial margin is rounded; the metacromion is very minute and placed quite at the end of the spine ; the supraspinatus fossa is smaller relatively thau in the Cats, or than in the Viverrida generally ; both it and the infraspinatus fossa are very concave. In |