324 THE EEPTILES OF EGYPT. 
WALTERINNESIA. 
IValterinnesia, Lataste, Le Naturaliste, 1887, p. 4J1. 
Body cylindrical, moderately elongate ; tail rather short ; head distinct from the 
neck ; neck more or less distensible ; canthus rostralis present ; nostril denned by two 
or more nasals and the internasal ; loreal absent ; eye small, pupil round ; scales smooth 
anteriorly, feebly keeled on the posterior part of the body, strongly so on the tail, 
without apical pits, 23 rows across the body, more on the neck ; anal divided ; sub- 
caudals simple anteriorly, divided posteriorly ; a pair of large grooved poison-fangs at 
the anterior end of the maxilla, which projects distally to the palatine ; no other teeth 
behind ; anterior mandibular teeth the longest. 
Walterinnesia ^egyptia, Lataste. (Plate XLVI.) 
IValterinnesia <eyyptia, Lataste, Le Naturaliste, 1887, p. 411 ; Blgr. Cat. Snakes B. M. iii. 1896, 
p. 392 ; Anderson, Herpet. Arabia & Egypt, 1896, p. 109. 
1 J . Loc. unknown. Dr. Walter Innes. 
Neck more or less dilatable ; head rather short and deep ; snout moderately broad ; 
rostral very much broader than high, the portion above more or less triangular, and 
equal to about one-half of the distance between its posterior border and the frontal ; 
internasals about the same size as the prsefrontals, their mesial suture about one-third 
shorter than the length of the suture between the praefrontals, in contact with the 
posterior nasal ; frontal slightly exceeding the breadth of the supraocular, somewhat 
longer than the conjoint median sutures of the praefrontals and internasals, its anterior 
breadth about three-fourths its length or nearly so ; parietals longer than the conjoint 
length of the frontal and of the prsefrontal sutures ; one praeocular resting on the third 
labial, more than twice as long as high, reaching to the canthus rostralis, excluded from 
the frontal by the praefrontals and supraocular, and in contact with the posterior nasal ; 
one subocular ; two postoculars ; temporals 2 + 3 or 3 -+-3 (first variable) ; seven upper 
labials, third and fourth, rarely the second, entering the orbital margin ; the fifth 
excluded by the subocular; the sixth occasionally in contact with the lower postocular; 
third, fourth, and sixth the largest and higher than the others ; anterior chin-shields 
in contact with four labials, twice as long as broad, considerably longer than the 
posterior pair, but not much broader, the latter separated by two scales. Ventrals 189— 
197 ; anal 1/1 ; subcaudals 45-48, the second to the ninth in single, remainder in 
double series. 
Upper surface dark, somewhat purplish brown, almost black in life ; entire under 
surface dark yellow or brownish. ' 
A male measures 1187 millim. in length, of which the tail forms 168 millim 
