Zoology.-] NATURAL HISTORY OF VICTORIA. ^Mammals. 



This is the only Dolphin, or "Bottle-nose," as sailors say, 

 which I have noticed on the Victorian coasts. It not unfrequently 

 visits Hobson's Bay, generally in August, and following shoals of 

 Pilchards or other fish, on which it feeds. 



Explanation of Fiq0ke3. 



Plate 22. — Fi?. 1, side view, natural colors, reduced ; the position of the blowers marked 

 by the spoutint!;. iTig. la, view of forehead and snout from abore. Fi<j. 16, form of section 

 beliiiid pectorals. Fig. \c, form of section near tail, showing the compressed, sharp, upper 

 mid-line. Fig. Id, form of tail, viewed from above. Fig. le, side view of skull, reduced. Fig. 

 \f, skull, seen from below, showing tlie deep concave channel on each side of the narrow, pro- 

 minent palate. Fig. \y, e.Ktreraity of lower jaw, viewed from above, natural size, showing length 

 of symphyses and size and position of teeth. Fig. lA, tooth from middle of jaw, natural size, 

 viewed ia front and profile. 



Frederick McCoy. 



[ 10] 



