LIST OF ILLUSTRATIONS IN THE TEXT. 



1900. 



I'ngo 



Arvicanthus abyssinicus, Right upper molar series of 81 



Arvicanthus dembeensis, Right upper molar series of < v l 



Littledale's Sheep (Oris sairensis), Male of, in winter coat 114 



Musk-ox, Papillae of the paunch of the 148 



Musk-ox, Cells of the reticulum of the 1 49 



Musk-ox, Irregular folds iu caecum of the 151 



Musk-ox, Great, and small intestines of the 152 



Musk-ox, Liver, gall-bladder, and part of the duodenum of the l r >~> 



Musk-ox, Spleen of the 156 



Musk-ox, Larynx of the !•-" 



Musk-ox, Tracheal ring of the 1 ;jS 



Musk-ox, Lung of the 159 



Musk-ox, Penis of the 1 ^ J 



Musk-ox, Udder of the female 1 (;4 



Benhamia cacifera, Ventral surface of anterior segments 168 



Benhamia ctecifera, Calciferous glands 1 ' 



Benhamia ccecifera, Septum with intestine &C, cut across 171 



Tachyoryctes splendens ibeanus, Skull of 15" 



Siamang, Brain of, inner view of left hemisphere 188 



Siamang, Brain of, dorsal aspect 1°" 



Asellus aquaticus, Head of, seen from dorsal side "69 



Asellus aquaticus, Apex of extra mandible of, to show details 270 



Rhabdocidaris annulifera, Table of measurements of 276 



Asthenosoma heteractis (transverse section) - ' ■-' 



Taphozous melanopogon, 3, Head of, three-quarter and profile views. 348 



The piece of skin from Cueva Eberhardt • • 380 



Micrographic reproduction of some of the hairs of the piece of skin 



(from Cueva Eberhardt) ? ' 8 l 



Mantisatta trucidans, ? , much enlarged ;? '- iJ 



