_ Morosaurus. 
O. C. Marsh—American Jurassic Dinosaurs. 89 
] arch of Morosaurus, in Plate V, figure 1. The ischium is less 
_ what more twisted in its distal half than the artist has drawn it 
in figure 1, where the three bones are represented nearly in the 
_ same plane. 
_ . The vertebrz referred to Adlantosaurus are opisthoccelian in 
_ the cervical region, and the caudals preserved resemble those in 
’ e limb bones, so far as known, are similar in 
_ their more important characters to those in that genus. 
The two species now placed in the genus Adlantosaurus are 
_ the type, A. montanus, and A. immanis, which contain the 
largest land animals yet discovered. The latter species may 
possibly belong to the genus Apatosaurus. 
_ other genera. The pelvic bones of this species, he says, do not 
_ resemble those of Dinosauria, when, on the contrary, the pubis 
_ he figures is typical in the group. Conclusions based on such 
work will naturally be received with distrust by anatomists. 
Allosauride. 
In addition to the huge Sawropoda, and the small species of 
_ the genus Laosaurus, described in the previous article, numerous 
Annals and Mag. Nat. Hist., vol. ii, p. 201, Sept., 1878. 
Am. Naturalist, vol. xii, p. 77. 
