24. LioLavs. 139 
1. Ventral scales smooth. 
42 or 44 scales round the middle of 
the body ; interparieta] smaller than 
parietals ; a long band-like scale on 
the supero-anterior border of the 
CAPA ei se hg wey NAe aN eae ee awe 4. lemniscatus, p. 143. 
50 scales round the middle of the 
body ; interparietal a little larger 
than parietals ................ 6. fuscus, p. 144. 
40 scales round the middle of the 
body; keels of the dorsal scales 
forming continuous straight lines.. 7. gracilis, p. 145. 
2. Ventral scales slightly keeled. 5. stantoni, p. 144. 
B. Scales on the middle of the back not larger than those on the 
sides of the belly. 
1. Ventral scales not larger than dorsals. 
a. Lateral scales as large as or but little smaller than 
dorsals. 
a. Dorsal scales elongate rhomboidal, ending in a small 
spine or mucro. 
40 scales round the middle of the 
body ; the distance from the base 
of the fifth toe to the extremity of 
the fourth toe exceeds the length of 
thé: head: sic ecl ve weaig dune iss 8. eyanogaster, p. 145. 
50 to 58 scales round the middle of 
the body se:suae seas dad Wot 9. bibroni, p. 146. 
40 to 44 scales round the middle of 
the body; the distance from the 
base of the fifth toe to the extre- 
mity of the fourth does not exceed 
the length of the head .......... 11. magellanicus, p. 148. 
2B. Dorsal scales simply pointed. 
48 to 54 scales round the middle of 
EHO DOGG o.desd. ae dededccban ey ethan 3 10. nigromaculatus, p. 147. 
More than 60 scales round the middle 
of the body ; hinder side of thighs 
uniformly granulate............ 138. kingit, p. 149. 
More than 69 scales round the middle 
of the body ; hinder side of thighs 
with a patch of enlarged rhomboidal 
BCALER ie aura ear aedeee a 14. fitzinyeri, p. 150. 
