122 GERRHOSAURIDA. 
East Africa (Zanzibar, Telta). 
a, Ad. Zanzibar. Sir Lambert Playfair [P.]. - 
b, ec. Ad, Zanzibar. _ Sir J. Kirk (C.]. 
3. Gerrhosaurus nigrolineatus. 
Gerrhosaurus nigrolineatus, Hallow. Proc. Ac. Philad. 1857, p. 49. 
— wmultilineatus, Bocage, Jorn. Sc. Lish. i. 1866, p. 61. 
Head moderate; body cyclotetragonal. Head-shields smooth ; 
frontonasal broader than long, not touching the rostral ; prefrontals 
in contact, forming a long suture ; a narrow, band-like shield in 
front of the ear-opening. Dorsal shields all diagonally keeled, in 
24 to 28 longitudinal and 54 to 60 transverse series; ventrals 
in 8 longitudinal series. Femoral pores 14 to 18. Tail a little 
more than twice as long as head and body. Brown or olive above, 
with dark brown and yellowish squarish spots, and two or more 
yellowish dark-edged streaks along the back; lower surfaces yel- 
lowish. 
millim. millim 
Total length ...... 437 , Fore limb ........ 35 
Head. s.3 vn eo ee 2 25 Hind limb........ 65 
Width of head .... 20 BT, ae Ho. ost see gsr 305 
Body essen 0 353 eg'ea'g 107 
West Africa, 
a. Ad. Benguela. J. J. Monteiro, Esq. [C.]- 
6. Her. Carangigo. Dr. Welwitsch [P.]. 
e. Her. Ambriz, Angola. 
‘d. Ad. W. Africa. 
e. Ad. —?P Sir J, Richardson [P.]. 
f. Ad. —-? Bristol Museum [P.]. 
4, Gerrhosaurus flavigularis. 
Gerrhosaurus flavigularis, Gray, Cat. p. 50. 
bibronii, Gray, 1. e. 
Gérrhosaurus flavigularis, Wregm. Isis, 1828, p. 879; Wagl. Icon. 
Amph. pl. xxxiv. fig. 1; Dum. & Bibr. v. p. 878; Smith, Til. 8. 
Afr., Rept. pls. xxxvii. and xlii. figs. 1-4; Peters, Reise n. Mos- 
samb, iii. p. 57. 
ocellatus, Cocteau, Mag. de Zool. 1834, iii. pl. iv. 
Pleurotuchus chrysobronchus, Smith, Mag. Zool. Bot. 1.1887, p. 148. 
dejardinii, Smith, 1. ¢. 
Gerrhosaurus bibronii, Smith, Ill. S. Afr., Rept. pl. xxxviii. fig. 1, 
and pl. xlii. figs. 9-12; A. Dum. Cat. Méth. Rept. p. 141. 
flavigularis, var. quadrilineata, Boettyg. 22. wu. 28. Ber. Offend. 
Ver. f. Naturk. 1883, p. 156. 
Head small; body cyclotetragonal. Head-shields smooth; fronto- 
nasal as long as broad, not touching the rostral, forming a short 
‘suture with the frontal ; a narrow tympanic shield. Dorsal scales 
feebly striated, keeled, the laterals not or very indistinctly keeled, 
