546 



The Living Animals of the World 



Pholo hij rr. p. DanJo, F.Z.S.] \_Jtcgenl's Park. 



YOUXG BKOAD-SXOUTED CROCODILE. 



A native of West Africa, remarkable for the extreme shortness and gi'eat breadth of its nozzle. 



and the feet, are more or 

 less "webbed. Tlie most strik- 

 ing of its structural adapta- 

 tions is, however, associated 

 with the formation of the 

 creature's skull. The manner 

 in which a crocodile or alli- 

 gator contrives to breathe or to 

 save itself from asphyxiation, 

 when opening and shutting 

 its mouth under water, as 

 it may often be observed to 

 do in the Eegent's Park 

 Menagerie, is a common 

 source of wonderment to the 

 onlooker. This seemingly 

 difficult feat is compassed 

 by virtue of the posterior 

 nostrils, or breathing-passages, 

 being set so far back in the 

 skull, and being so completely 

 cut off from the mouth-cavity 

 by syiecially developed bones of the palate, that they have no intercommunication with 

 the mouth. It is this mechanism which enables a crocodile to seize and hold an animal 

 underneath the water between its open jaws until it is drowned. Special valves at the 

 back of the moutli prevent any water running down the creature's throat, while it is able 

 itself to breathe unrestrainedly by allowing just the tip of its elongated snout, with the anterior 

 nostril-apertures, to remain above the water's surface. In many species a conspicuous knob- 

 like bony excrescence is developed at the extremity of the snout, by which the nostril-openings 

 are raised turret-wise above the surface of the water. The eyes also being usually elevated 



above the level of the 

 '^* -jk.-.!, :, iM^-MBK^.fl i-^f ir-iiJina^B^Bni^^Bi creature's head, the crocodile 



is able to approach its floating 

 or bank-side jirey practically 

 unperceived, its huge body, 

 limbs, and even the head, 

 with the exception of the 

 nose and eyes, being totally 

 submerged. 



Although capable of 

 moving with great activity 

 in the water, crocodiles and 

 their allies are usually ac- 

 counted sluggish and slow- 

 movers on the land. Seen 

 basking in the sun, as is 

 their wont, liy the hour 

 together on some sand-bank, 

 or creeping lazily thereon 

 among their fellows, such a 

 conclusion is natural. The 

 celerity, however, with which 



riioio lit/ i\„i-i 



I Jl. H-iiuth, Esq 



A DEAD CROCODILE. 



A man-eating individual. This ijarticular .animal has jnst been shot. The n.atives in the back- 

 gr.jund give a good idea of its size— little less thaa 20 feet long. 



