of british territoriks in east africa.. 847 



10. Elasmodactyi.us. 

 IJlgr. Proc. Zool. Soc. 1894, p. 727. 



1. Elasmodactylus trif.drus B]gv. 



Blgr. llov. Zool. Afr. iii. p. 104, fig., 1913. 

 Tanganyika Territory. 



Family Ag ami u^t:. 



Two genera. 



I. Incisors small, conical Agama. 



II. Incisors united into one or two large cutting teeth ; tail short, 



with whorls of spines Apnroscelis. 



1. Agama. 

 Agama, part., l);iud. Hist, llept. iii. p. 333 ; Blgr. Cat. Liz. 

 i. p. 334. 



S)/no]}sis of the Species. 

 I. Occipitnl scale enhirgcd. 

 A. Dorsal scales unequal. 



Ventral scales keeled Inspida. 



Ventral scales not or hut slightly keeled /'. tUxtanli. 



I!. Dorsal scales e(iual. 



1. A slight denticnlation or crest on th(! vcrtehral line. 



Smooth or keeled veutrals much smaller than the dorsals, mossawhica. 

 Smooth ventrals scarcely smaller than the dorsals kirkii. 



2. No dorsal denticnlation or crest. 

 a. A snuiU nuchal crest. 



Longest spines ahont ear and on sides of neck ahont half 

 the diameter of the ear-opening ; dorsal scales strongly 

 keeled <Joriw. 



Longest spines ahoutcar and on sides of neck one-third the 

 diameter of the ear-opening; dorsal scales keeled, not 

 or but very slightly mucronate planiceps. 



Longest spines about ear and on sides of nock consider- 

 ablj' shorter than the diameter of the ear-opening ; 

 dorsal scales strongly keeled, mucronate colonornm. 



Longest spines about ear and on sides of neck hardly 

 more than half the diameter of the car-opening. 80 or 

 90 scales round mid-bodj-. Head longer than broad. 

 Dorsal scales ncarl3' smooth or ver^- feebly keeled, not 

 mucronate clganis. 



Longest spines about ear and on sides of neck nearly 

 e(]>uil the diameter of the ear-opening (in type speci- 

 men) ; dorsal scales small, very feebly and obtusely 

 Iceeled ; throat scarlet in $$ lionotns. 



Longest spines about ear and on sides of neck not nearly 

 e<inal to, but about one-lifth tlie diameter of the ear- 

 opening; dorsal s(!al(.s small, obtusely hut strongly 

 keeled : 



(i.) Tiiroat scarlet with bright blue border in $ S ■ 



lionotus, var. dodomce. 

 (ii.) Snout to mid-body including throat bright 



metallic pink in ^^ liono(HS,viu\mimnz/r. 



