15. scarTErRA.— 16, APOROSAURA. 117 
Tail as in S. ctenodactyla. Greyish or sandy-coloured above, with 
darker network enclosing round lighter spots; tail with three longi- 
tudinal blackish lines ; lower surfaces whitish. 
millim. willim. 
Total length ...... 153 From end of snout 
Head .cecsvavinac 16 to vent ........ 58 
Width of head...... 13 Fore limb ........ 24 
From end of snout to Hindlimb...... 47 
fore limb........ 27 2 AE eee 95 
South Africa. 
a-b. 5 & her. Damaraland. Mr. Anderson [C.]. 
ad. S. Africa. 
16. APOROSAURA. 
Pachyrhynchus (non Spix) , Bocage, Ann. § Mag. N. H. (8) xx. 1867, 
p- 226; Strauch, Mél. Biol. Ac. St. Pétersb. vi. 1867, p. 408; Lataste, 
Ann. Mus, Genov, (2) ii. 1885, p. 126. 
Head wide and flattened ; snout much depressed, wide, spatulate, 
with trenchant margins greatly exceeding the outline of the mouth. 
Head-shields normal; no occipital. Nostril pierced between three 
nasals. Lower eyelid scaly. No collar. Dorsal scales granular. 
Ventral plates smooth. Digits compressed, covered with smonth 
scales beneath, denticulated laterally. No femoral pores. Tail 
éylindrical. 
West Afriea. 
1. Aporosaura anchietz: 
Pachy rhynchus anchiets, Bocage, l. c. p. 227; fig. 
Rostral much depressed, forming with the first seven upper labials 
the projecting border of the snout ; subocular in contact with the 
fifth, sixth, and seventh upper labials; frontal very narrow ; three 
large supraoculars ; parietals very short, much broader than long, 
separated by a rhomboidal interparietal; three pairs of chin-shields 
in contact ; ear-opening narrow, without marginal denticulation. 
Dorsal scales very small, juxtaposed, smooth, slightly inflated. 
Ventral plates quadrilateral, subequal, arranged in 20 to 24 straight 
longitudinal rows, and berdered upon the flanks by several rows 
of similar, but smaller plates. Prieanal scales numerous, small, 
subequal. Scales out the base of the tail similar to the dorsals; 
those on the rounded portion large, imbricate, and keeled. Golden- 
yellow above, with a wide-meshed black network on the back and 
limbs; a black vertebral streak ; an elongate black spot covers the 
occiput; head and temples variegated with black ; a black line along 
the side of the tail; lower surfaces uniform white. 
