Br. a. Woodward — On the Fossil Sirenia. 



413 



strata ovei- the greater part 

 of Europe, in England, Hol- 

 land, Belgium, France, Ger- 

 many, Austria, Italy, and in 

 deposits of analogous age in 

 the Isthmus of Suez at Chalaif, 

 and the quarries of Mokattam 

 near Cairo, in Africa. 



They have also been obtained 

 from the Phosphate Beds of 

 South Carolina, the Eocene of 

 Shark Eiver, New Jersey, in 

 the United States ; and from 

 the Tertiary of Jamaica in the 

 West Indies. 



Of the European species, by 

 far the larger number are 

 I'eferable to the genus Hali- 

 tlierium, originally described 

 by Kaup from the Miocene of / 

 Hesse-Darmstadt, and of which 

 we are now, thanks to Dr. G. 

 E. Lepsius, of the Museum, 

 Darmstadt, acquainted with 

 the entire skeleton (Fig. 1). 



[See the Memoir on Hali- 

 iheriwm Schinzi, die fossile 

 Sirene des Mainzer Beckens, 

 von Prof. Dr. G. R. Lepsius, 

 Darmstadt, 1881, Abhandl. 

 des Mittelrhein. geolog. Vere- 

 ins, 1 Band, 1 Lieferung, pp. 

 1 — 76, with 10 double quarto 

 plates.] ^ 



Ealitherium resembled the 

 Dugong in its dentition, hav- 

 ing small tusk-like incisors in 

 the upper jaw, though these 

 were not so well developed 

 as in the ' Dugong' (ITalicore). 

 The molar teeth were f or -§-, 

 the anterior teeth were simple 

 and single-rooted, the posterior 

 teeth of the upper jaw with 

 three roots, and those below 

 with two roots, and with ena- 

 melled and tuberculated or 



^ Numerous remains of Ealitherium, comprising two jaws, one skull, detached 

 teeth, scapuLn, femora, ribs, and many vertebiaB, from Darmstadt, are also preserved 

 in the collection. 



