42 REPTILES. 



giu very much expanded, deeply serrated behind; beneath, yellow 

 brown-rayed and varied ; sternum narrow, rather broader in front, 

 attenuated and deeply acutely lobed behind ; head brown, mode- 

 rate, with two subtrigonal hard occipital shields, and small shields 

 on the temples ; chin2-bearded; neck warty, yellow beneath, with 

 a yellow streak on each side, from the angle of the mouth and un- 

 der the ear; claws elongate, acute, compressed. 

 Inhab. ? Mus, Bell, a young specimen. 



Minus's Phrynops. Phrynops ? Miliusii. Platerays Mili- 

 usii, Dum. et Bib. E. G. ii. 431. Emys stenops, Spix, Braz. 12, t. 

 9,f. 3, 4 ? very young. E. platycephala, var. Schlegel, F. Jap. 47. 



Shell oval, narrow and rounded in front, obtusely angular be- 

 hind, keelless, black-brown, shields smooth ; sternum brown, yel- 

 lowish washed on the edge and middle line ; abdominal plates 

 large ; head broad, thick, smooth ; temple with small scales. 



Inhab. Cayenne. Mus. Paris. 



5. Chei.tmys. 



Head and temple covered with a smooth skin. Jaws naked, 

 horny, strong. Chin not bearded. Shell convex, solid, expanded 

 behind, side edges narrow, rather revolute. Nuchal shield distinct. 

 Front cavity much contracted by two rather diverging septa, only 

 leaving a space half the width of the outer opening. Vertebral 

 column sharply keeled within. Sternum solid, narrow, with broad 

 and shelving side wings, and a broad rounded notch behind. 

 Claws 5-4, acute. Australia. 



The Victoria Chelymys. Chelymys Macquaria. Emys 

 Macquaria, Cuv. R.A.'n. 11. Gray, Syn. 40. Grey, Trav. W. 

 Aust. ii. 448. Dum. et Bib. E. G. ii. 438. Hydrastis Victoria?, 

 Gray, Z. M. 55. H. australis, Gray, Grey, Trav. W. Austr. ii. 

 445, f 6. 



Shell ovate, convex, blackish brown, marbled with grey and ra- 

 ther rugose above, beneath convex, yellow olive, with slight, im- 

 pressed, narrow, netted grooves ; vertebral plates nearly square, the 

 fourth 6-sided, elongate ; the marginal plates rather narrow in 

 front, broader and slightly bent upon the sides, dilated, rather pro- 

 duced and leaving two or three notches over the tail behind ; ster- 

 num yellow, rather convex. 



a. Shell only, adult, back with a very narrow, slightly sunk, inter- 



rupted vertebral line ; shield partly rugose ; vertebral plates 

 rather longer than broad. Victoria River, N.W. coast of Aus- 

 tralia. Presented by Capt. William Chambers, R.N. 

 Emys Macquaria, Dum. et Bib. H. Victoria?, Gray. 



b. Animal and shell, younger : shields smooth, vertebral rather 

 broader than lon<r. Australia. Presented by J. Gould, Esq. 



H. australis, Gray, Grey, Journ. W. Aust. ii. 445, t. 6. 



