1900.] batrachians and reptiles of the gaboon. 449 



Lacertid^;. 



21. Poromera eordi Hallow. (Plate XXXI. fig. 1.) 



Tachydromus fordii, Hallow. Proc. Ac. Philad. 1857, p. 48. 



Poromera fordii, Bouleng. Cat. Liz. iii. p. 6 (1887) ; Giinth. 

 Ann. & Mag. N. H. (6) xvii. 1896, p. 264. 



Poromera haugi, Moequard, Bull. Soc. Philoin. (8) ix. 1896, 

 p. 6. 



ITallowelPs description is faulty in several points, as I have 

 been able to satisfy myself through inspection of the type speci- 

 men ( c? ) kindly sent to me from Philadelphia. 



The ventral shields are in 10 longitudinal rows, not in 6. The 

 large anal shield is bordered by a semicircle of keeled scales, a 

 larger one on each side, connected by a series of 6. 12 femoral 

 pores on one side* 13 on the other. In addition to this specimen, 

 I have examined one from Lambarene, on the Ogowe, collected 

 by Miss Kingsley and described by Dr. Giinther, and seven pro- 

 cured by Mr. Bates on the Benito River. The dorsal shields are 

 in 6 or 8 longitudinal, the ventrals in 8 or 10 longitudinal and 23 

 to 26 transverse series. The collar contains 12 to 14 shields. 

 Males have a large, smooth prseanal shield, bordered by a series of 

 6 or 8 keeled scales ; females have the whole praeanal region covered 

 with keeled scales. 11- to 13 femoral pores on each side. Two 

 superposed postnasals: 4 to 6 upper labials anterior to the subocular. 

 Dark olive above, turning to bronze or copper-colour posteriorly ; 

 two light dorsal streaks, bright bluish white anteriorly ; beneath 

 greenish white in front, salmon-pink behind. The largest 

 specimen measures 65 millim. from snout to vent. 



Only known from the Gaboon district. 



22. Lacerta echinata Cope. 

 Hab. Liberia to Loango. 



23. Holaspis guentheri Gray. 



Hab. Tropical Africa, from the Gold Coast and the coast of 

 Zanzibar to Angola and the Zambesi. 



Gerrhosaurid.$. 



24. Gerrhosaurus nigrolineatus Hallow. 

 Hab. Gaboon to Angola. 



SCINCID.E. 



25. Mabuia raddonii Gray. 

 Hab. Sierra Leone to Congo. 



26. Mabuia batesi, sp. n. (Plate XXXI. fig. 2.) 



Snout short, obtuse, much depressed. Lower eyelid with a 



