io6 



THE DESEADO FORMATION OF PATAGONIA 



Morphippus imbricatus Ameghino 



M. imbricatus Amegh., 1897, Bol. Inst. Geog. Argcn., t. 18, p. 459. 



M. hypsolodus Amegh., 1897, Bol. Inst. Geog. Argcn., t. 18, p. 461. 



M. complicatus Amegh., 1897, Bol. Inst. Geog. Argen., t. 18, p. 461. 



M. fraternus Amegh., 1901, Bol. Acad. Nac. Cienc. Cordoba, t. 16, p. 374. 



M. quadrilobus Amegh., 1901, Bol. Acad. Nac. Cienc. Cordoba, t. 16, p. 374. 



The general characters of this species are given under 

 the generic description and I will here give only Ameghino's 

 measurements which go with the figure: 



Skull, length over all 



Skull, length of the palate 



Upper dentition, length the inc. 1 to m. 3 



Diameter of the palate opposite inc. 3 



Diameter of the palate opposite m. 3 



Height of mandible under m. 1 



210 mm. 

 120 mm. 

 120 mm. 



37 mm. 



75 mm. 



33 mm. 



Fig. 67. M. imbricatus — 1/2 natural 

 size; A, upper dentition; B, lower den- 

 tition after Ameghino. 



Fig. 68. E. latirostris, palatal view, after a pho- 

 tograph of the type— 1/2 natural size; the cioas 

 hatched area represents matrix not yet removed. 



