27 



This species, which was first described by Eiippell from a 

 specimen obtained at Massowah, was shortly afterwards described 

 by Dumeril and Bibron from Bengal as S. coctcei. Klunzinger, 

 in 1878, again recorded it on the coast of the Eed Sea at Koseir, 

 and since then it has been observed at Aden and at Maskat, and 

 has been found at Pao and Jask in Persia. 



Agamid^. 



Agama sinaita, Heyden. 



Agama sinaita, Heyden, Eiipp. Atlas N. Afr. 1827, p. 10, 

 pi. iii. ; Dum. & Bibr.' Erpet. Ge'nl. iv. 1837, p. 509 ; A. 

 Dumeril, Cat. Eept. Mus. Paris, 1851, p. 103; Boettger, 

 Bericht. Senck. Nat. Ges. 1879-80, p. 195 ; Blgr. Cat. Liz. 

 Brit. Mus. i. 1885, p. 339 ; Boettger, Kat. Eept. Mus. Senck. 

 1893, p. 49. 



Agama arenaria, Heyden, Eiipp. Atlas N. Afr. 1827, p. 12. 



Fodorrlioa (I'seudotrapelus) sinaita, Pitz. Syst. Eept. 1843, 

 p. 81. 



Trapelus sinaitus. Gray, Cat. Liz. Brit. Mus. 1845, p. 259 ; 

 Giinther, Proc. Zool. Soc. Lond. 1864, p. 489; Tristram, West. 

 Palest. 1884, p. 154, pi. xvi. fig. 3. 



Agama sinaitica, Riippell, Mus. Senck. iii. 1845, p. 302; 

 Bedriaga, Bull. Soc. Imp. Nat. Moscou, 1879, no. 3, p. 37. 



Agama mutabilis, Blgr. {non Merrem), Oat. Liz. Brit. Mus. i. 

 1885, p. 338 ; Boettger {non Merrem), Kat. Eept. Mus. Senck. 

 1893, p. 48. 



Agama sinaiticus. Hart, Pauna and Plora of Sinai &c., 

 1891, p. 210. 



2 c? , 8 ? , and 1 juv. 



Isidore Geofiroy St. Hilaire, at p. 128, and again at p. 136 

 of the ' Description de I'JEgypte,' refers to Merrem's Tent. Syst. 

 Amph., and states that Merrem's Agama mvtabilis was founded 

 on the lizard represented in the former work on plate 5. figs. 3 

 and 4, and that the term used by Merrem was a translation into 

 Latin of the French name under which the lizard was figured. 

 Merrem's work was published in 1820, so that plate 5 had 

 appeared before, and Isidore GeofBroy's text after that year. 

 The plate had been issued before 1817, as Cuvier refers to it in 

 the first edition of the 'Eegne Animal.' 



The two figures of Merrem's A. mutabilis are characterized by 



