284 FOSSIL BIRDS 
the Upper Eocene to the Lower Miocene. ‘The coracoid from the 
former described by Prof. Seeley (Ann. and Mag. N. H. ser. 3, xviii. 
p- 109) as Ptenornis cannot be definitely placed. From the Marls 
of Ronzon several ornitholites have been recognized by M. Aymard, 
who refers them to the genera Camascelus, Dolichopterus, Hlornis 
(3 spp.), and Zeracus. Of these the first was declared to be allied 
to the Plovers (Charadriidx), the second to the Gulls, the third to 
the Flamingos, and the fourth to be a Falconine; but Prof. 
Milne-Edwards considers the first and second to be probably 
identical. From the same beds M. Gervais has described eggs and 
imprints of feathers, as well as a pelvis, referred by him to Mergus, 
but regarded by M. Milne-Edwards as a Sula. This naturalist has 
also described from the typical Lower Miocene beds of Allier and 
Puy-de-Déme an enormous number of ornitholites (loc. cit.), referring 
them to nearly 50 species. Besides the already-mentioned 
Palzxortyz (3 spp.), Limnatornis, Palxohierax, Pelargopsis,: Ibidopodia, 
Elornis, Palzlodus, Hydrornis, and Colymboides, are the extinct genera 
described by him ; to which the writer (Cat. Foss. B. Br. Mus. p. 169) 
has added Milnea. Of these the second is referred to the Upupidx 
(Hoopor); Palxohierar was allied to Aquila; Pelargopsis! was 
StorK-like; while Jbidopodia connects the Storks and _ Ibises ; 
Milnea being allied to Zdicnemus (Stone-CURLEW) and Llornis to 
Limicola. The remarkable Palxlodus (5 spp.) was a generalized 
form to which the FLAMINGO is allied, but having shorter legs. 
Hydrornis was an aquatic bird of uncertain affinity ; while Colymboides 
may be placed in the Colymbidx. The existing genera include Anas, 
Aquila, Bubo, Collocalia, Columba, Cypselus, Fuligula, Ibis, Lanius, 
Larus, Milvus, Motacilla, Pelecanus, Phalacrocorax, Phenicopterus, 
Picus, Psittacus, Pterocles, Rallus, Serpentarius, Strix, Sula, Totanus, 
Tringa, and above all Trogon. In addition to these, remains (as yet 
undescribed) referable to Himantopus, Leptoptilus, Otis, and Puffinus, 
are also said to occur in these beds. Several of the birds of the 
Allier are represented in equivalent deposits of the basin of Mainz. 
From the Middle Miocene of Bordeaux and other parts of the 
south of France humeri of an elongated type, described as 
Pelagornis, indicate a bird closely allied to the Eocene drgillornis. 
From that of Sansan in the Gers we have as extinct forms 
Homolopus, allied to the Picidx, Necrornis, which seems to belong 
to the Musophagide—a Family now limited co Africa—and Palao- 
perdix (3 spp.) a Gallinacean ; while among existing genera we have 
represented Aquila, Halixtus, Strix, Corvus, Phasianus (2 spp.)—a 
genus generally supposed to have been introduced into Europe in 
historic times—Rallus, Numenius, Ardea, and Anas. The same 
Phasianus and a species of Palxortyx have been recorded by Dr. 
Depéret from the equivalent beds of Grive-St.-Alban in the Isére ; 
1 This name being preoccupied, the writer has proposed Pelargodes in its place. 
