VIII. — REPTILIA AND BATRACHIA. 67 



Sub-order V.— ANGIOSTOMATA. This group con- 

 tains a number of small snakes not included in any of the pre- 

 ceding groups. The mouth is narrow, and the jaws are not so 

 moveable as in other orders. In some species teeth are wanting. 

 Australian specimens are : — 



Typhlops nigrescens— Blind Snake. 

 „ rueppelli— „ 



„ guentheri— „ 



They live principally in the ground on minute ants and their 

 eggs. They can really see as well as any other snakes. 



BATRAOHIA-Sub-Order L-BATRAOHIA SALI- 



ENTIA. — This sub-order comprises Batrachians, such as Fro»s 

 and Toads, the members of which in the adult state are tail-less, 

 but are provided with four well developed limbs. Specimens of 

 those belonging to Australia and the South Sea Islands are in 

 Case 155 in the Australian Hall, Ground Floor. Some of the 

 species on view are : — 



Hyla caerulea — Green Tree Frog. 



Notaden bennetti — Bennett's Toad, a very rare and 

 purely Australian form. 



Limnodynastes peronii — Marsh frog. 



Pseudophryne australis— Speckled bellied frog. 

 Sub-Order II.-BATRAOHIA GRADIENTIA. This 



sub-order includes Batrachia which retain their tails through life 

 and have also four limbs ; while many lead an aquatic life, — for 

 example, the Newts, the Salamanders, the Axolotls, &c., of which 

 there are no Australian examples. 



Sub-Order III.— BATRACHIA APODA, or CCECI- 



LIANS. — This Sub-order is characterised by the habits of the 

 animals composing it being serpent or worm-like, having no limbs 

 and only a rudimentary tail — for example, " Mud Eels." They 

 live in marshy ground in tropical countries, but are not found in 

 Australia. 



