198 REPTILES. 



the crown, situated above the third upper labial, both forming 

 together the anterior edge of eye ; fourth and fifth labial shields 

 forming the lower edge ; two posterior oculars. Scales smooth, 

 in seventeen rows, those of the back equal. Subcaudals two- 

 rowed. West Africa. 



Hypsirhina, sp., Gray, Zool. Misc. p. 67. Lycodon, sp., 

 Gray, MS. Brit. Mus. 



1. Metoporhina irrorata. 



Coluber irroratus, Leach in Bowdich's Mission to Ashantee, 

 p. 494. Hypsirhina maura, Gray, Zool. Misc. p. 6/. Lycodon 

 maura, Gray, MS. Brit. Mus. 



Black-brown, with a few irregular darker spots ; rather paler 

 beneath. 



a. Adult. Gold Coast. Presented by T. E. Bowdich, Esq. 



b. Adult. Fantee, Africa. Presented byT. E. Bowdich, Esq. 



6. BooDON, Dimi. df Bihr. 



Body moderate, rounded ; tail moderate, rather short ; head 

 rather depressed, with flat crown, rounded in front ; pupil ellip- 

 tical, erect ; shields of head regular ; two nasals, nostril between ; 

 one loreal, one or two anterior, two posterior oculars. Scales 

 smooth, small, in twenty-three to thirty-one rows, those of the 

 back equal. Anal entire, subcaudals two-rowed. South and 

 Western Africa. 



Boaedon, Eugnathus, Dum. 8f Bibr. vii. pp. 35/, 404. Ly- 

 codon, sp., Schlegel, Essai, ii. p. 104. 



1. BoODON geometricus. 



Lycodon geometricus, {Boie) Schleg. Ess. ii. p. Ill; Smith, 

 III. of S. Afr. pi. 22 (adult and young). Eugnathus geome- 

 tricus, Dum. Sf' Bibr. p. 406. 



Scales in twenty-three or twenty-five rows. Head with two 

 whitish lines on each side, above and below the eye ; body with 

 a yellowish lateral band. 



a. Very large specimen. Old Calabar. Presented by W. Logan, 



Esq. 



b. Adult. Old Calabar. Presented by W. Logan, Esq. 



c. Adult. Western Africa. From Mr. Rich's Collection. 



d. Young. Literior of Ashantee. — In all these specim.ens the 



blackish colour of the back extending on the belly ; in a 

 and b, the lateral band of body not visible. 



e. Half-grown. Fernando Po. From the Collection of the 



Zoological Society. 



