DOLLO, BELGIAN FOSSIL VERTEBRATES 
113 
L. Lower Oligocene. Tongrian. 
1. Mammals. Q 
2. Birds. Q 
3. Reptiles.Q 
4. Amphibia.Q 
5. Fishes .X 
1. Fishes. List in memoir now in press. 
M. Leriche, Mem. Mus. roy. Hist. nat. Belg., 1909, v, No. 2. 
M. 
Middle Oligocene. 
Rupelian. 
1. 
Mammals . . . 
• • X 
2. 
Birds. 
. . X 
3. 
Reptiles .... 
. . X 
4. 
Amphibia 
• • O 
5. 
Fishes. 
• • X 
1. Rhinoceros. Species not yet determined. Boom (province of Antwerp). 
A mandible. 
Unpublished; will be described by a student of Brussels University. 
2. Halitherium schinzi Ivaup, 1838. Boom (province of Antwerp). 
Several skeletons more or less complete of this sirenian. 
Unpublished. 
3. Rupelomis definitus Van Ben., 1871. Rupelmonde (eastern Flanders). 
Bull. Acad. roy. Belg., 1871, xxxii, 258. 
4. Vanellus selysi Van Beneden, 1871. Rupelmonde (eastern Flanders). 
Op. cit. p. 259. 
5. Anas creccoides Van Beneden, 1871. Rupelmonde (eastern Flanders). 
Op. cit. p. 260. 
6. Psephophorus rupeliensis Van Beneden, 1883. Niel near Boom 
(prov. Antwerp). 
A gigantic marine leathery turtle, the oldest of the Dennochelys 
(Sphargis) group thus far known in Belgium. 
Op. cit., 1883, vi, 666. 
L. Dollo, Bull. Mus. roy. Hist. nat. Belg., 1888, v, 59. 
8. Bryochelys waterkeyni Van Beneden, 1871. Boom (prov. Antwerp). 
A small marine typical (thecophore) turtle. 
Bull. Acad. Roy. Belg., 1871, xxxi, 12. 
9. Chelyopsis littoreus , Van Beneden, 1886. Boom (prov. Antwerp). 
A large marine typical (thecophore) turtle. 
G. Smets, Annal. Soc. scientif. Bruxelles, 1886, x, 12. 
