Dercetis elongatus, [622].

Dermal bones of reptiles, [657].

------ covering of Glyptodon, [799].

Derry, Tyrone, [531].

Derwent Valley, Australia, [171].

Desmeopora semicylindrica, [271].

Desmidiæ, [88].

Devonian formation, [31].

-------- fossil plants, [212].

Diadema rotulare, [316], [318].