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Show 100 MESSRS. WATSON AND YOUNG ON THE [Jan. 14, pisiform bone and from the annular ligament ; the fibres terminate a tendon which, after being pierced by the deep flexor tendon of the fifth digit, is inserted into the second phalanx of that digit, and consequently represents its superficial flexor tendon. A similar but smaller muscular slip runs to the fourth toe, and joins the superficial flexor tendon. Somewhat analogous is the condition elaborately described by Meckel in H. striata-the palmar accessory slips, however, not being confined to the two outer digits as in the Civet, but running to all four, each tendon of the superficial flexor thus receiving an additional slip. In H. striata, it is to be noted, the accessory slips are altogether tendinous, apparently springing simply as offsets from tbe expansion of palmaris longus. They do not possess the muscular portions so well marked in the case of the Civet. There is no representative in H. crocuta of the flexor longus pollicis described by Meckel as existing in H. striata. Lumbricales are four in number. All arise from the palmar surface of the common deep flexor tendon, and pass to be attached to the deeper aspect of the superficial flexor tendons. The nature of this peculiar attachment of the lumbricals is apparently the same in H. striata, and is to be found figured in Cuvier and Laurillard's •Recueil,' pi. 141. fig. 3. In the hand, the pollex, as in H. striata, is deprived of any special muscles; the little finger is furnished with an abductor minimi digiti ; this, from the pisiform bone, joins the extensor-expansion on dorsal aspect of first phalanx of fifth digit. This muscle also exists in the Civet. According to Douglas it is wanting in the Dog. In this latter animal Douglas avers the presence of a small flexor and an opponens of the pollex. Tbe interossei muscles are strong and well developed, their arrangement being very similar in Carnivora generally. In H. crocuta a deep set comprises eight fleshy bundles arranged in pairs, two to each metacarpal, situated rather on the palmar aspect of these; they arise from their proximal ends, and pass to the sides of the bases of the first phalanges, reaching as far as the extensor-tendon. In addition to these paired muscles are two single ones (palmar interossei). These arise together from the bases of the third and fourth metacarpals. They are distributed to the middle and outermost digits respectively. Muscles of the Hind Limbs. In Carnivores generally the gluteus maximus (externus) is more or less divisible into two parts-this, as observed by Meckel, being especially well marked in //. striata. In H. crocuta a similar disposition holds good-the anterior part of the muscle, thin and flat, springing from the spines of the posterior sacral vertebrae, and passing to the fascia lata, whilst the posterior moiety, forming a perfectly distinct elongated and fusiform bundle, springs from the transverse processes of the three anterior caudal |