ad | we “FF 7 a 
’ 
10, TRoPIDONOoTUS, 237 
q- 2 (Sc. 23; V.155; 0.53). Hamman R’irha, Dr. J. Anderson [P.]. 
Algeria. 
r-8. 6 Oy (V. 158, 150; C. St. Barbe, Algeria. Dr.R.Blanchard [P.}. 
£8. 153; C. 50). Biskra. 
g. (V. 152; C. 33), Tuggurt, Algerian Dr.R.Blanchard [ P.). 
ahara. 
wy. 9 (V.152, 154; C. 50, Tunis. + Mr. Fraser [C.}. 
47), )y her. $ Q (Vv. 151; C. to.) 
50), & (V.147; C. 51). 
&. z (se38; V. 157 ; N. Africa. Zoological Society. 
a. ‘Shall Algeria. 
B. Two sallbw or reddish longitudinal dorsal lines in addition to 
the usual markings. (J. ocellata, Wagl., C. aurolineatus, Gerv., 
T. oppelii, Boie, 7’. chersoides, D. & B.) 
a. Hgr. 3 (V. 149; C.?). Mountain streamsof Col. Irby [P.]. 
Algeciras. 
b. d (V. 155; C. 72). Alemtejo, Portugal. Dr. H. Gadow [C.). 
c. $ V. 154; C. 53), Tangier. Mr. Fraser [C {o.} 
d. Yg. (V. 157; C. 62). St. Barbe, Algeria. Dr.R.Blanc [P.}. 
e. 2 (V. 153; C. 49). Tunis. Mr. Fraser [C.}. 
f. & (V. 154; C. 59). Duirat, Tunisia. Dr. J. pectic (Pi 
37. Tropidonotus validus. 
pegs vs rate, Kennicott, Proc. Ac. Philad. 1860, p. 334; Cope, Bull. 
‘us. no. 32, p. 74 (1887). 
ieee leno, Cope, Proc. Ac. ‘hitad. 1860, p. 341, and 1861, 
— eclidiglone’, Ors & 
velidme> 342 Coues, Wheeler's Rep. Surv. W. 100th 
Mer. v. De | Sides 3 wey aay (1875). 
— rialis, Fischer, Verh. nat. Ver. Hamb, (2)iii. 1879, p. 82, 
I. 1. 
Te Ete var. validus, Garm. N. Am. Rept. p. 28 (1883). 
— sirtalis, var. quadriserialis, Garm. J. c. p. 140. 
¥ atm quadriserialis, Cope, Bull. US. Nat. Mus, no, 32, p, 74 
( 
Neuis vallds, Cope, Pros. U.S. Nat. Mus. xiv. 1892, p. 670. 
_ Eyes rather small. Rostral broader than deep, visible from 
above; nasal usually semidivided; internasals much narrowed 
in front, longer than broad, as long as or a little shorter than 
the prefrontals; frontal twice as long as broad, as long as its 
distance from the end of the snout, shorter than the parietals; 
loreal as long as deep, or longer; one or two prm- and three 
(rarely two) postoculars ; temporals 1+2 or 1+3; eight upper 
labials, fourth and fifth entering the eye; five lower labials. in in 
contact with the anterior chin-shields, which are a little shorter 
than the posterior. Scales in 19 (rarely 21) rows, outer row 
faintly keeled. Ventrals 136-147; anal divided; subcaudals 
66-83. Greyish or olive-brown above, uniform or with longi- 
