162 UROPELTID&. 
2. Plectrurus davisonii. (Prare X. fig. 2.) 
Plectrurus davidsoni, Beddome, Ann. §& Mag. N. H. (5) xvii. 1886, 
p. 25; Bouleng. Faun. Ind., Rept. p. 271 (1890). 
May eventually have to be united with P. perroteti, from which 
it differs only in the somewhat more elongate body (39 times the ~ 
diameter), the higher number of ventrals (180), and the brighter 
coloration. Yellow, each scale edged with purple. 
Total length 430 millim. 
Anamallays. 
a. 2 (V. 180; C. 8). Anamallays, 4700 feet. W. Davison, Esq. [P.]. 
(Type-) 
3. Plectrurus guentheri. 
Plectrurus giintheri, Beddome, Proc. Zool. Soc. 1863, p. 228, pl. xxvii; 
Giinth. Rept. Brit. Ind. p. 193 (1864); Theob. Cat. Rept. Brit. Ind. 
. 136 (1876) ; Beddome, Ann. § Mag. N. H. (5) xvii. 1886, p. 26 ; 
ouleng. Faun. Ind., Rept. p. 271 (1990). 
Snout obtuse; rostral small, the portion visible from above shorter 
than its distance from the frontal; nasals in contact; frontal longer 
than broad. Eye half the length of the ocular. Diameter of body 
36 to 42 times in the total length. 15 scales round the middle of 
the body, 17 behind the head. Ventrals not twice as large as the 
contiguous scales,171-175. Subcaudals10-12(¢). Caudalscales 
pluricarinate ; terminal scute with two superposed bi- or tricuspid 
transverse ridges. Bright reddish purple above, this colour descend- 
ing as triangular processes to the sides, which, like the belly, are 
yellow ; these triangular markings sometimes extending across the’ 
belly. 
Total length 360 millim. 
Nilgherry Hills, 3500-4000 feet. 
a. 6 (V.174; C. 12). Walagut, below Sispara. Col. Beddome [C.]. 
(Type.) 
b,c. go (V.171,175; Walagut. Col. Beddome [P.]. 
C. 10, 12). 
4. Plectrurus aureus. (Prare X. fig. 3.) 
Plectrurus aureus, Beddome, Proc. Zool. Soc. 1880, p. 182, and Ann. 
& Mag. N. H. (5) xvii. 1886, p. 26; Bouleng. Faun. Ind., Rept. 
p- 272 (1890). 
Very closely allied to the preceding, the only structural difference 
being found in the ventrals, which are a little broader, viz., twice 
as broad as the contiguous scales. Diameter of body 39 to 44 times 
in the total length. Ventrals 164-177; subcaudals 8-12. Of a 
brilliant golden colour, brighter beneath; the scales edged with 
violet, with or without a few irregular narrow violet-black cross 
bars on the back; the belly much ornamented with violet-black 
cross bands or alternating spots. 
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