506 



G. A. BOULENGER 



Peters, in whirli il is totally absent. The same variation is shown 

 l)y tlie s}). ciinens of M. (dbilabì'is from Fernand Yaz. 



;^7. Mabuia albilabris, Hallow. 



FrcMicli Congo: Fernand Yaz. 



;^cS. Mabuia perroteti, 1). Ov: !>. 



Porlu*i-uese (riiinca: Polama, Bissau, Farim. 

 Mabuia polytropis, Blgr. 



Fernando Po: Punta Frailes. 



40. Lygosoma africanum, Gray. 



S. Thome: Agua Izé, Vista alegre, 200-^^0!) m., Riljoira Palma, 

 400-600 m. 



Prince's Islands: Bahia do Oeste and Roya Inf. D. Henrique, 

 100-300 m. 



Anno Bon: 400-500 m. 



41. Lygosoma reichenovii, Peters. 

 Fernando Po: Musola, r500-700 m. 



42. Lygosoma breviceps, Peters. 

 Fernando Po: Basile, 400-600 m. 



38 scales round the body. 56 or 57 in Peters's original de- 

 scription being probably a misprint for 36 or 37. 



43. Lygosoma fernandi, Burt. 

 Cameroon: Buea. 

 Fernando Po: Punta Frailes. 



44. Lygosoma guineense, Peters. 

 Portuguese Guinea: Rio Cassine. 



A single specimen with very short hind limbs and 9 keels on 

 the dorsal scales. From snout to vent 77 millim. ; head 12; fore 

 limb 1 1 ; hind limb 14. 



45. Melanoseps occidentaiis, Peters. 

 Fernando Po: Musola, 500-700 m. 



^iielytropidae. 



46. Feylinia currori, Gray. 

 Cameroon: Buea. 



French Congo: Fernand- Yaz. ^ 

 Second upper labial (instead of third) sometimes in contact 

 with the ocular. 



47. Feylinia polylepis, Bocage. 



