t)22 MR. G. A. BOULENGER ON THE 



5. SiMOCEPHALUS NYASS.E Giintli. Ami. & Mag. N, H. (6) i. 

 1888, p. 328; Bouleng. t. c. p. 347, pi. xxiii. fig. 2. 



Gonionotophis degrijsii Werner, Zool. Anz. xxx. 1906, p. 53. 

 East Africa, Nyassaland, Natal. 



Cope, Proc. Ac. Philad. 1864, p. 168 ; Bouleng. Cat. Sn. i. 

 p. 373. 



1. PSEUDASPIS CAN A. 



Colxiher camis Linn. Mus. Ad. Frid. i. p. 31, pi, xi. fig. 1. 



Pseudaspis' cana Bouleng. 1. c. 



East and (South Afi'ica, Nyassaland, Angola. 



8. Ohlorophis. 



Hallow. Proc. Ac. Philad. 1857, p. 52; Bouleng. Cat. Sn. 

 ii. p. 91. 



Synopsis of the Species. 



I. No trace of ventral keels ; veiitrals 147-190. 



A. Scales in 15 rows. 



9 upper labials, 4lh, 5th, and 6th entering the e3'e ; subcaudals 



103-123 C.emini. 



1 upper labials, 3rd, 4th, and 5th entering the eye; subcaudals 



114 C. schuhotzi. 



8 upper labials, 4th and 5th entering the eye ; subcaudals 82- 



105 C. lioplogaster. 



B. Scales in 13 rows ; 9 upper labials, 5th and 6th entering 



thee3'e; subcaudals 75 C. macrops. 



II. Ventrals with a more or less distinct lateral keel. 



7 or 8 upper labials, 4th and 5th (rarely 3rd and 4th) entering 



the eye; ventrals 148-169; subcaudals 71-114 C.neglectus. 



8 or 9 upper labials, 4th, 5th, and 6th (rarely 3rd, 4th, and 5th) 



entering the eye; ventrals 175-190; subcaudals 115-135 ; 



body very slender anteriorly C. heterolepidotvs, 



9 upper labials, 4th, 5th, and 6th entering the eye ; prteocular 



in contact with or narrowly separated from the frontal ; 



ventrals 150-182 ; subcaudals 90-133 C. irregularis. 



1 . Chlorophis em jni. 



Ahcetulla emini Giinth, Ann. & Mag. IST. H. (6) i. 1888, p. 325. 

 Chlorophis emini Bouleng. t. c. p. 92, pi. v. fig. 1. 

 Egyptian Soudan to Uganda and Ruwenzori. 



2. Chlorophis schubotzi Sternf. in Schubotz, Wiss. Ergebn. 

 Deutsch. Z.-Afr. Exped. iv. Zool. ii. p. 269, fig. (1912). 



Near Bukoba, German E. Africa. 



3. Chlorophis hoplogaster. 



Ahcetulla hoplogaster Giinth. Ann. & Mag. N. H. (3) xi, 1863, 

 p. 284. 



Chlorophis hoplogaster Bouleng. t, c. p. 93, 

 Cexiti-al, East, and South Africa. 



