HOLLAND AND PETERSON: OSTEOLOGY OF THE CHALICOTHEROIDEA, 
Werticaludiameven omantenl Onlacel Ol Cemuclinie arn em rnrer Menten yer eects. sacl. «ae 48 
Transverse diameter of anterior face of cemtrum. .....-....2.-.- 0 eee eee nee e ee eee eee 55 
Vertical diameter of posterior face of centrum. .................-52.5 ee eee eee ee 53 
Transverse diameter of posterior face of centrum. ............--. 0 cece eee eee eee 60 
Vertiesll chenneter oF mewimall @amall,. 5 6oncoonsuoscoceedacoenevccc0snebcdacasaovsnaduuenoR 25 
Transverse diameter of neural canal.............. Se Rs ee in ev ea etanseastacer sky 30 
Antero-posterior diameter of prezygapophyses............... 0. eee eee ee eee 20 
Transverse diameter of prezygapophyses........ 2.2. -- cee eect eee eee ee eee es 20 
DistancerachossspnezycapoplySespeey eee oe aa Eee ce ici os an ecis ani st ed: 54 
Antero-posterior diameter of postzygapophyses............. 0.0 e cece eee eee ee 25 
Transverse diameter of postzygapophyses............ 00020 c ee cece eee ee 18 
DistanceyacrossspOsuzyeapOphiViSesamEanten oer ben eee ee cic aera OO) 
Vertical diameter of anterior face for head of ribs............... 0000s ee eee cee eee 27 
Horizontal diameter of anterior face for head of ribs.............. 0.02. e eee ee eee eee eee 17 
Werucaliarameterotpostenornacenorhead onribse eam dense crac soc ee aerial Qh 
Horizontal diameter of posterior face for head of ribs................ 0... cece eee eee 24 
Antero-posterior diameter for tubercle of ribs... . 2.0.02... 0. eect ee 25 
Nerticalidiametersionmvulberclerohmbsane nee eee ereeceee cles likin pete enst sill 25 
Abransyerserdiameten On jedlCelern. acvas eae cea oioie sonatas coke lon tees le Sey tetris Aslerevensilens aie ehel 382 
Antero-posterior diameter of pedicel..... 2.2.0.2... eee cece eet eee 34 
Distance between faces for heads of ribS............ 2... cece ett eee eee 24 
Height of spine from neural canal to extremity. .......... 2.02 cece tte eee 175 
Antero-posterior diameter of spine above neural canal.................-- eee eee teeter eee 40 
Antero-posterior diameter of spine at top below tubercle................ 0 cece eee eee e eee 82 
Ninth Dorsal Vertebra. 
Three specimens representing the ninth dorsal of Moropus were found: No. 
1604, in an excellent state of preservation; No. 1714, likewise in a good state of 
preservation, except that it has lost the posterior 
epiphysis of the centrum; and the centrum of speci- 
men No. 1731, preserving together with the corpus 
the anterior prezygapophyses and portions of the 
lamine forming the neural arch. Thespecimen 1714 
is that of a quite small and immature individual. 
The spine of the ninth dorsal is very nearly the 
same height as that of the eighth and the tenth, 
and is somewhat strongly excavated anteriorly at 
the upper end of its extremity and has at the end 
a strongly developed tubercle for ligamentary at- 
tachments. The prezygapophyses in Number 1604 
look forward more decidedly than in specimens 4,, 53 Ninth dorsal of M. elatus 
Nos. 1714 and 1731. The postzygapophyses look (No. 1604). x3. 
