THE rillXCIPAL HL'ECIES OE I'OISOXOUS SXAKES 



91 



Total louf;tli, "200 millimetres ; tail 2:1 

 Habitat : Southern Australia. 



(10) D. frontalis. — Scales in 11) rows; 154 veutrals ; 30 sab- 

 caudals. 



Colour li^^'bt brown, with a vertebral black line ; belly pearly- 

 white, with a njedian br(jnze-coloure(l l.)and. 

 Total len^tli, 400 millimetres ; tail oO. 

 Habitat : New South Wales. 



(11) D. ji'iii/t'Iluia. — Scales in 17 rows ; lo2 — loS veutrals ; 2-5 

 — 27 subcaudals. 



Colour pale brown ; vertex, occiput, and nape l)lack ; upper 

 lip and belly white. 



Total lenf,4b, ;-'..SO millimetres: tail 40. 

 Habitat : Victoria. 



(12) 1). iiiaciilata (iig. :")(■)). — Scales 

 in 17 rows; 121— 1.30 veutrals ; 20— oO 

 subcaudals. 



Colour dark ^■rey-br(_)wn, or brown : 

 a lar»"e dai'k olive-green or brown bkjtcli 

 on the bead, with two or tlirec unequal 

 light grey spots ; belly white. 



Total length, 400 nnlhmetres ; 

 tail 'io. 



Habitat : Queensland. 



(13) D. jtiuictata. — Scales in l') 

 rows ; 1()0 veutrals ; 2-") sul)caudals. 



Colour pale brown ; head and nape ^"- '' -^"' ' '"" ■" ""' 

 orange ; upper lip and belly yellow. 



Total length, 350 millimetres ; tail 36. 

 Habitat : North-AVestern Australia. 



(14) 1). (foiddii (fig. 57). — Scales ui 15 rows ; 140 — 170 veutrals ; 

 22 — 23 subcaudals. 



Colour brownish-yellow ; nape black ; head covered with a broad 

 grecnish-bluc blotch, extending from the nose to the neck; upper 

 lip and belly yellow. 



Fk 



-])cniso}iin nuK'iiatn. 



