ORDER OPHIDIA. 



Test Suhnigei\ Lacep. 2. O. t. 7- f- i*- Test. Nigricans, 

 Merrem. 



II. e/aet"* horny ; sternum, solid ; intergular plates six 

 sided between the gular and pectoral plates. Chelodina. 



Long-necked Chelys. Ch. {Chelodina) Longicollis, Gray. 

 Testudo LongicolliSy Shaw. New Holland, t. 7- 



Shell oblong flat ; sternum yellow, shields brown edged. 



III. Jaws horny ; sternum solid, intergular plate sm.all, 

 marginal ; nostrils short, tubular. Hydraspis. Bell. 



Species of the Old World or its Islands. 



Cape Chelys. Ch. {Hydraspis) Subrufa. n. Test. Suh- 

 Tufa, Lacep. Q. O. t. 12. Test. Indica, Daud, — Jun. Test. 

 Galeata, SchoefF. t. 3. f. 1. Test. Scabra, Retz. T. 

 Senegalefisis, Daud. ; and Emys Olivacea, Schw. 



Shell oblong, low, pale brown, smooth ; nuchal plate, 

 none ; vertebral plate depressed. Cape of Good Hope. 

 Senegal. 



Adamson's Chelys. Ch. (Hydraspis) Adamsonii, Emys 

 Adamsonii. Schw, 



Shell low, oval, very broad behind, yellow, black spotted ; 

 nuchal plate none ; vertebral plates keeled, first urn-shaped, 

 hinder triangular. Africa. Nigritia. 



Macquary''s Chelys. Ch. {Hydraspis) Macquarii. Emys 

 Macquarii. Cuv. R. A. 



Shell oval, depressed, contracted in front, behind subden- 

 tate, dark olive ; shields rugulose ; dorsal line sunk ; nuchal 

 plate narrow. New Holland. 



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