G. A. norLEN'GER 



distinct species, wliicli occurs also on Prince's Island. An excellent 

 detailed description has been given by Bedriaga (0 Instituto , 

 XXXIX, 189:2, p. 3^), and the head is accurately figured by 

 Jan (Icon. Ophid. 3(), j^l. II, lig. 3). The species differs from B. 

 Jineaim in the third upper labial constantly entering the eye 

 (only very exceptionally in B. lineatus) and in the markings 

 of the head, the light lateral streaks uniting on the proefrontal 

 shield^ , the greater part of the snout being light-coloured , with 

 darker spots, and a dark streak through the nostril, whilst in B. 

 lineatus the dark brown area of the top of the head extends to 

 tlie internasals. The pnieocular , which is often divided , rarely 

 reaches the frontal. Belly more or less spotted with brown. Scales 

 in 27 to 31 rows; ventrals 208-248; anal entire; subcaudals 61 

 to 71 pairs. 



5 specimens from S. Thome (vista Alegre and Ribeira Palma, 

 200-300 m.) and 3 from Prince's Island. 



68. Boodon fuliginosus, Boie. 

 Portuguese Guinea: Rio Cassine. 



69. Lycophidium irroratum, Leach. 

 Portuguese Guinea: Rio Gassine. 



The belly may- be uniform dark brown or black. 



70. Lycophidium semicinctum, D. <fc B. 

 Portuguese Guinea : Bolama. 



The specimens belong to the var. alboraaculata , Stdr. 



71. Lycophidium fasciatum, Gthr. 



Fernando Po : Bahia de S. Carlos, 400 m., Musola, 500-700 m. 

 French Congo: Fernand Yaz. 



In one of the specimens, the loreal enters the eye, between 

 the third labial and the prseocular. 



72. Lycophidium elapoides, Gthr. 

 Cameroon: Buea, 600-1200 m. 



A single male specimen. Ventrals 232; subcaudals 72. Frontal 

 scarcely longer than broad; temporals i + 2. 



73. Bothrolycus ater, Gthr. 

 Cameroon: Buea, 600-1200 m. 



74. Simocephalus poensis, Smith. 

 French Congo : Fernand Yaz. 



75. Gonionotophis vossii, Boettg. 

 Portuguese Guinea : Rio Cassine. 



