OF NEW SOUTH WALES. 67 



I 

 keeled, those on the back in 8 series. Colour, dark olive brown 



on the back, with a few distant lighter coloured spots representing 



obsolete stripes, and a broad black band along each side, edged 



with yellow ; under surface yellowish. 



Length, 5 inches. 



Found at Darnley Island. 



20. — Heteropus quinqdecarinatus. 



Head rather blunt, nostril near the middle of the nasal plate ; 

 the sixth upper labial largest ; the other head plates as in the 

 two last species. Ear openings oblong-oval, with three denticu- 

 lations in front. Legs, moderate ; toes slightly elongate ; scales 

 each with five keels the lateral ones short and indistinct, and 

 those on the back in about 6 series. Tail scarcely longer than 

 the body. Colour, dark brown above, and white below, with a 

 light black-edged side streak. 



Length, 6 inches. 



Hah. Darnley Island. 



21. — Heteropus sexdentatus. 



Head short, the supraorbital regions rather elevated ; nostril 

 in the middle of the nasal plate ; fifth upper labial largest ; other 

 head plates as in the last described species. Ear openings 

 oblong ovate, with six denticulations in front. Legs, moderate ; 

 toes, elongate • scales indistinctly tricarinated, those on the back 

 in 8 series. Tail, fine and tapering, a little longer than the body. 

 Colour, olive brown above, and greenish white beneath. The 

 scales of the back and sides have their lateral angles tipped with 

 dark brown, which gives the appearance of a number of dark 

 longitudinal lines. 



Length, 6 inches. 



Found at Cape Grenville. 



22. — Heteropus Cheverti. 



Head flat ; nostril at the back part of the nasal plate ; fifth 

 upper labial largest ; head plates as in all the other species, the 

 interparietal perhaps being more pointed at the apex. Ear 



