332 Reports and Proceedings — Zoological Society of London. 



yielded invariably three images for each face, so that the crystal 

 had really the form of a very flat triakio-octahedron. Similar 

 observations on other crystals lead to the conclusion that the 

 faces of a crystal are in general not faces with simple indices, 

 but vicinal planes slightly inclined to them, which change their 

 inclination during the growth of the crystal. By determinations of 

 the refractive index of the solution by means of total reflection 

 within the crystal it was found that in each case the liquid in contact 

 with a growing crystal is slightly supersaturated. 



III. — Zoological Society op London. 



Zoological Society of London, June 16th, 1903. — F. Du Cane 

 Godman, Esq.. D.C.L., F.R.S., Vice-President, in the Chair. Dr. A. S. 

 Woodward, F.R.S., exhibited photographs by Dr. Otto Herz, 

 illustrating the discovery and exhumation of a Mammoth in the 

 Government of Jakutsk, Siberia. He also made remarks on the 

 specimen, which has now been mounted in the Zoological Museum 

 at St. Petersburg under the direction of Dr. Salensky. — Dr. H. 

 Woodward, V.P.Z.S., F.E.S., read a communication from Miss 

 Dorothy M. A. Bate giving a description of the remains of an extinct 

 species of Genet from a Pleistocene cave-deposit in Cyprus, named 

 Genetta plesictoides, n.sp., of which the following is an abstract : — 

 In October, 1901, Miss Bate began her search for Pleistocene bone 

 caves in the island of Cyprus, and in the following January first 

 discovered Dikomo Mandra, a cave containing an extensive deposit 

 of hippopotamus remains and the largest deposit of bones found 

 in the Kerynia range of limestone hills in the north of the island. 

 This proved to be the only cave in which the remains of any 

 carnivorous animal were found, other than those of the fox still 

 living in Cyprus. The remains consist of a left mandibular 

 ramus, only lacking the second molar and canine and a few other 

 bones. On comparing this ramus it appears to be that of 

 a carnivore nearly allied to Genetta genetta, which is still found 

 living on the opposite shores of Palestine. On the other hand, 

 it also presents many similarities to Plesictis Croizeti of the 

 Oligocene deposits of France. The Cyprus fossil agrees with 

 and at the same time differs from both Genetta genetta and Plesictis 

 Croizeti, and that so impartially that it is a matter of extreme 

 difficulty to decide with which group it ought most properly to 

 be associated. The scanty material adds to this uncertainty, which 

 would probably be removed were the skull and upper dentition 

 of this species known. However, in consideration of its much 

 more recent age compared with that of the Oligocene fossil, it is 

 proposed, at all events for the present, to include it among the 

 genets under the name of Genetta plesictoides, n.sp. The mandibular 

 ramus is intermediate in size between that of G. genetta and 

 P. Croizeti, and the teeth also differ in several respects from both 

 these species. The author has been unable to find a record of any 

 fossil Genetta, and among the rest of the Viverridse the only species 

 of Pleistocene age appears to be Viverra Karnuliensis from India. 



