256 COLUBRID. 
longest. Head small, not distinct from neck; eye small, with 
round pupil ; nasal entire or divided ; no loreal. Body cylindrical ; 
scales smooth, without pits, in 15 rows; ventrals rounded. Tail 
moderate or short ; subcaudals single. 
Tropical and South Africa. 
Synopsis of the Species. 
I. Two prefrontals. 
A. Symphysial not in contact with the chin-shields. 
1. Two postoculars, in contact with a temporal; nasal entire, 
in contact with the preocular, 
Third and fourth upper labials entering 
ERS. OY6 |. kcicn cs bes cede a ee 1. jacksonii, p. 257. 
Second and third upper labials 
entering the eye -..........e0e 2. werneri, p. 257. 
2. A single postocular ; one labial in contact with the parietal. 
Nasal entire, not in contact with the 
preoocular .....cccrecsesesesen 3. concolor, p. 257. 
Nasal divided, in contact with the 
DLOCUIAE . 06s vss vee ee hE A 4. lunulatus, p. 258. 
B. Symphysial in contact with the chin-shields, 
1. Third and fourth upper labials entering the eye. 
Nasal divided; ventrals 154-180; 
subcaudals 51-59 ...........4.. 5. guenthert, p. 259, 
Nasal entire; ventrals 191; sub- 
Oatdals 44... wea coeaevav cpus 6. bocagii, p. 259. 
Nasal entire; ventrals 138-166 ; 
subcaudals 37-53 ,........2.06, 7. capensis, p. 259. 
2. Second and third upper labials entering the eye. 
Ventrals 110-149 ; subcaudals 21-40, 8. nigriceps, p. 260. 
Ventrals 160-161 ; subcaudals 36-41. 9. punctatolineatus, p. 261. 
Il. A single prefrontal. 
Frontal as long as its distance from 
the end of the snout ............ 10. Uineatus, p. 261. 
Frontal longer than its distance from 
the end of the snout ............ 11. anomalus, p, 262. 
1. Aparallactus jacksonii. 
piri aoe Giinth, Ann. § Mag. N, H. (6) i. 1888, p. 825, 
pl. xix. fig. EF. 
Be | te jacksonii, Bouleng. Ann. § Mag. N. H. (6) xvi. 1895, 
p- 172. 
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