Oldenlandia, [65].
Oligodon, few toothed, [347].
Ophidarium, the, [16], [61], [163].
Ophidia; divisions of, [46], [51], et seq.;
groups of, [53];
all carnivorous, [56];
and oviparous, ib.;
prejudices regarding, [3], [97], [103], [189], et seq.;
well supplied with teeth, [344];
sub-orders of, [354];