Cope. | ai fo) [Aug. 17, 
ber of vertebree, supposed to belong to the same individual by my assis- 
tant, Russell Hill, who discovered it. 
The proximal extremity of the maxillary bone is depressed, both the ex- 
ternal and internal aspects presenting prominent ribs. The inner rib soon 
disappears, and the alveolar border becomes interior in position, the teeth 
then assuming a more pleurodont character. The external rib continues, 
and rises so as to form the superior border of the jaw, but continues .to 
have an oblique direction outwards. It is separated by a longitudinal con- 
cavity from the portion that bears the alveoli. The teeth are subcylindric 
in section, and the crowns are acute and incurved. The proximal end of 
the maxillary forms a condyle for transverse movement, which is divided 
by a transverse groove. Above this groove the extremity is fissured. 
The vertebral centra are somewhat hour-glass shaped, and present a 
deep longitudinal fossa on each side of the base of each neural and hemal 
arch, which is divided by a vertical rod on partition of bone, which 
strengthens the arch. The arrangement is that seen in the genus Hmpo, 
The sides of the centra are marked with rather regular linear grooves, 
which disappear at the contraction. 
Measurements. M. 
juenethsof maxillary bone preserved). 4 6isn- csceyeens 066 
iDistalidepthtysrieo- setae jusaighdlte aitileyaren Sadie yeloe a eee .O11 
SS we Wil Clit las Sa Gia: 5 euetovs ape cay Shausickobas telieleraterereetalelrarektoraeaiore .005 
Proxima lide pt le sccw eae oh croabaetor tite stove aus tevcrae sfetoe ere 005 
uo SACU ORR He cen oon tacerote mea aonodon oe -006 
Ba tat MCU Ait ae chavs palate ye oyare ebriareietenerteletone eke ile aieietere tele .020 
longitudinal s.26 .010 
Diameter of caudal centrum < transverse........ ..... -009 
VICTULCANL. (es. ere arene cise .010 
longitudinal ..... .... .009 
Diameter of anterior centrum ~< transverse .......... -O11 
Vertical. ovens wcetciee -009 
In the O. sheawrerii the dental alveoli are transverse to the long axis of the 
maxillary bone, while here they are longitudinal or round ; the bone is 
more laminiform in the O. tortus. 
ANOGMIUS FAVIROSTRIS sp. Noy. 
The characters of the genus Anogmius Cope having up to the present 
time rested upon but one species (A. aratus), it is satisfactory to be able 
to confirm them by the study of new material. This, which was obtained in 
Kansas by Mr. Sternberg, consists of the almost entire superior part of the 
skulls of two individuals, one of them with thirteen vertebre. 
The vertebre, which undoubtedly belong to the skull, have no lateral 
grooves, but the superior and inferior pairs of fosse are present. The 
inferior fosse are separated by a plane interval on the anterior cen- 
tra, which rapidly narrows posteriorly. The centra are not elongate nor 
