GLYPTATELUS 207 
Glyptatelus malaspinensis Ameghino 
G. malaspinensis Amegh., 1902, Bol. Acad. Nac. Cienc., Cordoba, t. 17, p. 50. 
This species is described (no figure) as about the same 
size as the preceding, but with subordinate figures in the 
central O-figure, and also outside of it. A dorsal plate 
measures 26 mm. long by 20 mm. wide. 
GRAVIGRADA 
Remains of this suborder are almost as rare as those of 
the glyptodonts, and apparently for the same reason, 
unfavorable habitat. We found no remains of this group, 
but Ameghino has described a skull and some teeth as 
belonging to this group; so, in order to present a complete 
view of the Deseado fauna, I give a digest of his descrip- 
tions. 
Hapalops antistis Ameghino 
H. antistis Amegh., 1897, Bol. Inst. Geog. Argen., t. 18, p. 505. 
The species is based on a skull, not figured, of which 
Ameghino says: the size is small, the molars are compressed 
from front to back, and gives the following measurements: 
Length of cranium from front of max. to occ. condyles 140 mm, 
Length of four post. molars 27 mm. 
Distance from front of max. to back of last molar 48 mm. 
Octodontotherium Ameghino 
Octodontotherium Amegh., 1895, Bol. Inst. Geog. Argen., t. 5, p. 656. 
The genus is based on isolated teeth, each a mass of 
dentine surrounded by a thin layer of cement. The an- 
terior tooth of the upper jaw is caniniform, the first molar 
ovoid in section, the last molar is bilobed, corresponding 
to Pseudolestodon. The first tooth of the lower jaw is also 
caniniform, but is two-faced as a result of wear. The 
intermediate upper and lower molars are rectangular 
prisms resembling those of Chlamdotherium. 
