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ANNALS NEW YORK ACADEMY OF SCIENCES 
6. Allopleuron hoffmanni Gray, 1831. 
Chelonian. Type of the genus Allopleuron Baur, 1888. The 
type of the species is a carapace from the Maestrichtian, in the Camper 
collection, preserved in the Teyler Museum, Harlem. 
Unpublished. 
7. Glyptochelone suyckerbuyki Ubaghs, 1879. 
Chelonian. Type of the genus Glyptochelone Dollo, 1903. The 
type of the species is a carapace from the Maestrichtian, preserved in 
the Brussels Museum. 
Unpublished. 
8. Plesiosaurus houzeaui Dollo, 1909. 
Plesiosaurian. Limb-bones and vertebrae of a Plesiosaurian of 
gigantic size, preserved in the Brussels Museum. 
Unpublished. 
G. Reptiles of the Maestrichtian of Belgium. 
Horizon. Maestricht chalk, which forms the uppermost part of our upper 
Cretaceous. Sometimes regarded as equivalent to the Danian, but this 
correlation calls for reconsideration. 
Localities. Canne, Eben, Sichen, Sussen etc., villages of Belgian Limburg, 
not far from Maestricht, which is in Dutch Limburg. 
1. Orthomerus dolloi Seeley, 1883. 
Dinosaurian. Type of the genus Orthomerus Seeley, 1883. The 
type of the species consists of a femur and tibia, preserved in the 
British Museum. 
Quart. Jour. Geol. Soc. London, 1883, xxxix, 248. Recalls the 
genus Trachodon. 
L. Dollo, Bull. Mus. roy. Hist. nat. Belg., 1883, ii, 211. 
2. Megalosaurus hredai Seeley, 1883. 
Dinosaurian. The type of the species is a femur, preserved in the 
British Museum. 
H. G. Seeley, Quart. Jour. Geol. Soc. London, 1883, xxxix, 246. 
3. Mosasaurus giganteus Sommering, 1816. 
Mosasaurian. Type of the genus Mosasaurus Conybeare, 1822. 
The type of the species is the skull described by Cuvier and preserved 
in the Paris Museum. 
L. Dollo, Bull. Soc. belg. Geol., 1890, iv, 151. 
