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Rh REVIEWS.

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TABLE III.

SHOWING THE DISTRIBUTION OF VERTEBRATE ANIMALS IN TIME.

Homo

Mammalia. Placentalia Terrestria Palmipedes Eplacentalia

AVES.

Arboricolse (nidicolae) Terrestres et Aquaticse Plerseque nidifugfe

Reptilta.

Monopnoa. Chelonia ., Sauria .... Ophidia, ,

Dipnoa

Pisces. OligobrancJii.

Dipnoi

Teleosti

Ganoidei : (Regulares)

Holostei Euspondyli

Hemispondyli et Aspondyli .. (Irregulares)

Sturioues

Cephalaspides

Volijhranchi. Elasmobranchi. Plagiostomi :

Squalidae et Rajidae

Cestraciontes et Hylodontes

Chimseridae

Cyclostomi et Leptocardii