236 MR. G. A. K. MARSHALL ON THE [Mar. 20, 



I do not propose to discuss here the deaths from tuberculosis 

 and enteritis among monkeys and birds; the figures given in the 

 appended table are sufficiently striking, and point to the necessity 

 of increased effort to diminish these diseases. 



Finally, attention may be directed to the following points of 

 special pathological interest : — 



i. The rarity of new growths, of which but two instances 

 occurred, viz., an epithelioma in a Puma, and a columnar- 

 celled adenoma in a Monkey. 



ii. The occurrence, in the case of the Sheep with " cerebral 

 tumour" caused by hydatids, of perforation of the vault 

 of the skull, due to intracranial pressure with the absence 

 of optic neuritis of such a degree as to be detected on 

 careful examination of the back of eye with a hand-lens. 

 Attention may also be directed to the absence of any 

 marked limb-weakness in this case until very shortly 

 before death. 



iii. The existence in the Gardens of a chronic disease in birds, 

 mycosis, with well-marked post-mortem signs due to 

 invasion of the tissues by a mould, Aspergilhts fumigatus. 



2. A Monograph of the Coleoptera ot the Genus Sciobius 

 Schh. (Curculionidse). Bv Guy A. K. Marshall, 



F.Z.S. 



[Received December 8, 1905.] 



(Plates XVIII. & XIX.-*) 



The genus Sciobius was established by Schonherr in 1826 

 (Disp. Meth. p. 197) for the reception of Curculio tottus Sparrm. 

 and G. pidkis Sparrm. 



In 1834 Gyllenhal described two species, griseus axidi porcatus, 

 the latter, however, being merely the $ of tottits. In 1843 

 Boheman published descriptions of eleven more species, prin- 

 cipally from the collections of Dr^ge and of Ecklon & Zeyher ; 

 adding yet another in 1845 from Wahlberg's collection. Of 

 the former series, three forms must be regarded as synonyms. 

 In 1862 WoUaston described a single species, paivamts, taken 

 by Welwitsch in Angola, but it is doubtful whether the insect 

 has been rightly included in this genus. In 1871 Fahrseus 

 added six more species to the list, all of which had been captured 

 by the distinguished Swedish explorer, Wahlberg. 



The present paper contains descriptions of no less than twenty- 

 two additional species, which must provisionally be regarded as 

 new ; thus giving a total of forty species exclusive of Wollaston's 

 doubtful insect. 



* For explanation of the Plates, see p. 276. 



