LIST OF ILLUSTRATIONS. 



Leaf Butterfly in flight and repose (from Mr. A. Wallace's " Malay 



Archipelago") ... ... ... ... ... ... ... 35 



Walking-Leaf Insect 40 



Pleuronectidse, with the peculiarly placed eye in different positions 



(from Dr. Traquair's paper in Linn. Soc. Trans., 1865) 42, 187 



Mouth of Whale (from Professor Owen's " Odontography ") ... 45 



Four plates of Baleen seen obliquely from within (from Professor 



Owen's " Odontography") ... ... ... ... ... ... 46 



Dugong 47, 197 



Echinus, or Sea Urchin 49,188 



Pedicellarise of Echinus very much enlarged ... ... ... ... 50 



Rattlesnake 56 



Cobra (from Sir Andrew Smith's "Southern Africa") 57 



Wingbones of Pterodactyle, Bat, and Bird (from Mr. Andrew 



Murray's " Geographical Distribution of Mammals") ... 72,147, 177 



Skeleton of Flying-Dragon 73,178 



Centipede (from a specimen in tJie Museum of the Royal College of 



Surgeons) 75, 179 



Teeth of Urotrichus and Perameles .. 77 



The Archeopteryx (from Professor Owen's "Anatomy of Vertc- 



brata") 82, 149 



