1895.] ASATOMY OF CRTPTOPEOCTA FEEOX. 433 



of the group \ The livei- of Cryptojirocta agrees very closel}"^ with 

 that of Herpeste^, which is figured in the paper referred to. But 

 no salient differences appear to distinguish the Viverrine from the 

 Feline liver. 



§ Organs of Respiration and Circulation. 



The lungs are divided into four lobes on the right side and three 

 on the left. The air-tube supplying the anterior of the right-hand 

 lobes leaves the trachea just before its bifurcation ; the middle lobe 

 is served by a branch which springs from the bronchus just after 

 the bifurcation. The bronchus itself supplies the two lower lobes. 

 On the left side the two anterior lobes are supplied by a branch 

 which arises from the left bronchus just at the bronchial bifurca- 

 tion. 



The aortic arch gives off an innominate vein and then the left 

 subclavian separately. This appears to be the general arrangement 

 in the Ailuroidea '. 



§ The Brain. 



The brain after hardening in spirit measured 51 mm. in length 

 by 35 mm. in diameter. The height is 26 mm. 



It is well convoluted and characteristically carnivorous. I have 

 paid careful attention to the convolutions, which, as is well known, 

 are important in determining the affinities of carnivorous animals. 



The brain of this animal has, however, already been described by 

 Dr. Mivart in a memoir ^ dealing with the carnivorous brain 

 generally. But, as his memoir contains no figures of the brain of 

 Cryptoprocta, 1 have thought it worth while to have the accom- 

 panying drawings (figs. 4, 5) prepared. The brain agrees with those 

 of other Carnivora (except the majority of the Cynoidea) in having 

 three gyri — the Sylvian, parietal, and sagittal — arranged round the 

 Sylvian fissure in the order mentioned. As in Herpestes, Viverricula, 

 Paradoxurits, and Cynictis (but not Genetta), the posterior limb of 

 the Sylvian gyrus is partially divided by a vertical fissure. As 

 Dr. Mivart correctly surmised from the sketch lent to him by 

 Prof. Miine-Ed wards, the Sylvian fissure is prolonged back to join 

 this latter fissure. This has happened, however, in my specimen 

 only on the right side. In Viverricida and Cynictis it occurs on 

 both sides. Though the parietal and sagittal gyri communicate 

 posteriorly, as in Paradoxurus, there are faint indications of a 

 separation, as I have shown in the drawing (fig. 4, p. 434). In 

 Paradoxurus there are no such indications. There is, however, a 

 resemblance to Paradoxurus in the commencing division of the 



^ " Notes on some Points in the Anatomy of the Ailuroidea," P. Z. S. 1882, 

 p. 510. 



^ See Mivart, P. Z. S. 1882, p. 515. 



3 "Notes on the Cerebral Convolutions of the Carnivora," J. Linn. Soc, 

 Zool. vol. xix. p. 1. 



Proc. Zool. Soc— 1895, ^o. XXVIII. 28 



