19. AGAMA. 357 



l-p, q,r. (S k yg. W. Africa. 



*• 2 • Senegal. 



*• S ■ Gambia. 



«»• Hgr. Sierra Leone. 



V. Several spec. . (J, Ancober River, Gold Majsir Burton and Capt. 



? , & hgr. Coast. Cameron [P.]. 



«"• Yg. Ambriz, Angola. 



■''• <i ■ Carangigo. Dr. Wel-witsch [P.]. 



y. «!■ cJ ? . Benguela. J. J. Monteiro, Esq.tC.l. 



a-8. d & hgr. S. Africa. Sir A. Smith [P.]. 



t. Skeleton. ? 



26. Agama hibronii *. 



Agama colonorum, (non D. Sr B.) Gfuich. Expl. 8c. Alg., Rept. p. 7 ; 



Strauch, Erp. Alg. p. 27. 

 bibronii, A. Dum. Cat. Meth. Rept. p. 101, and Arch, du 



Mils. viii. p. 574 ; Roettff. Abh. iSenck. Ges. xiii. 1883, p. 127. 

 colonorum, var. impalearis, Boettg. Abh. Senck. Oes. ix. 1874, 



p. 1.32. 



Head moderate, somewhat less depressed than in A. colonorum. 

 Nostril tubular, directed laterally and posteriorly, pierced just below 

 the canthus rostraUs. Upper head-scales smooth or indistinctly 

 keeled ; a very slightly elongate scale on the middle of the snout ; 

 occipital enlarged ; labials very smaU, eleven to fourteen upper and 

 as many lower ; sides of head and neck with groups of spines which 

 are slightly longer than in A. colonorum ; ear-opening entirely 

 exposed, larger than the eye-opening. Throat strongly plicate ; no 

 regular gular pouch. Body depressed, covered above with large 

 rhomboidal, mucronate, imbricate scales with strong keels converging 

 towards the vertebral line ; these scales scarcely smaller than the 

 caudals, numbering about forty from the origin of the fore limbs to 

 the origin of the hind limbs (counting on , the vertebral Une) ; a 

 slight nuchal crest ; no dorsal crest ; ventral scales much smaller 

 than the dorsals, smooth ; sixty-two or sixty-four scales round the 

 middle of the body. Limbs shorter than in A. colonorum, digits also 

 shorter ; tibia as long as the skull ; third and fourth fingers equal ; 

 third and fourth toes nearly equal, measuring the distance froni the 

 posterior border of the eye to the nostril ; fifth toe extending beyond 

 first. Tail about twice as long as the distance from gular fold to 

 vent, round in the female, feebly compressed in the male ; scaling 

 as in A. colonorum. Male with one [to three] row of anal pores. 

 Coloration as in A. colonorum. 



* Described from Algerian specimens in M. Lataste's collection. 



