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MEMOIRS OF THE CARNEGIE MUSEUM. 
The spine of dorsal eleven is of the same relative height as the dorsals which 
precede and succeed it. At the upper extremity of the spine it is enlarged for 
ligamentary attachments and is concave anteriorly and convex posteriorly in such 
a way as to give the upper extremity of the spine a slightly faleate outline. The 
prezygapophyses in No. 1703C look upward and slightly outward; in No. 1708 
they look upward and strongly forward. The postzygapophyses look backward 
and downward and very slightly inward. The transverse processes are bi-tuber- 
culate at their extremity, the upper or mammillary portion being considerably 
elevated, the lower and outer portion, bearing the tuberculum of the rib, looking 
outward and slightly forward. The faces for the heads of the ribs are well separated 
from each other. 
MEASUREMENTS OF WLEVENTH DorRSAL VERTEBRA.* 
1604, 1703C, 1708, 
mm. mm. mm. 
Greatest height from base of centrum to top of spine.........................------ 222 166 
Greatest transverse diameter measured across transverse processeS...........--..+-4- 130 96 
Greatest antero-posterior diameter measured from front of prezygapophyses to back of 
DOSUZY ADO HY SCSm naa eee nner Baar oa ERE esata Seemed Gia aia oie Sud 84 78 
eng thioticentrumyalonzsloonoimeurallicanalleese ren i eetann terrae eee 56 44 56 
hengthvohicentiumsal oncamfen(onsunialCenrs seen ieee eae rene te eee 45 37 45 
Verticalidiameterjiol anterior nacevotrc entire rire aise iar ree ee 60 35 55 
diransyerseldiameterofantenonmlaceolcentrummn seer ne eeen ne eeren nee 63 43 56 
Wenticalidiamretenoipostertonmacerolacentrutn me aes ener 60 38 54 
Transverse diameter of posterior face of centrum including faces for heads of ribs...... 92 65 90 
Verticalidiameterotmeuralicanallyannneee “sear cee eee eee ee ener 25 21 21 
MRransversexdramle Cerro tet e UT el) key al] tmemeenr see wate ne eee me an 25 21 21 
Antero-posterion diameter of) prezyzapophysessees were eee eee ae nee 25 18 30 
diransverse diameter of prezycapopiy.Sestieei nas saree ieee reerr niece Wo Ie 18 
Distancevackossiprezycapophy.Seshe an Meer enn n ner een Enna er etter 48 41 5A 
Antero-posterior diameter of postzygapophyses.................seee cece eteeeeeeeee 30 19 27 
Mransverseldiametenoh poshaycapophysese ae aes eee eree aerate eee eee ere 16 13 20 
IDIGUAINGD DOROSS ONWAK A NOSIS 6c oo boos codooe eneosn occas oUuegooueDoDabONOESS 57 39 56 
Vertical diameter of anterior face for head of ribs............... visste Nera) RE meiereees 25 19 20 
Horizontal diameter of anterior face for head of ribs.....................0.-+e--e- 20 12 16 
Vertical diameter of posterior face for head of ribSin.....-....--+--+ss--s+--cseee ees 25 23 23 
Horizontal diameter of posterior face for head of ribs.....................--+------ 20 7 20 
Antero-posterior diameter of face for tubercle of ribs.....................+---+--s- 17 18 
WVerticalidiameeniomiace on tulbercleonml sm ae eee iatein eee ieee erer 23 20 Sis 
Transverse diameter of. pedicelicc22 Ss .as. sas Oe ee REE 31 21 30 
Antero=posterionidvameter on pedicel es acer yanmar aerator rere ria erce 34 25 34 
Distance betweenkaces fomheadsiohnibseme ene ee ene ee aera eee 28 20 30 
Height ofspinesirommneuralicanalstorextremiiyaee ee eerieeer ene eee eee renin 157 118 
Antero-posterior diameter of spine above neural canal.................:...-.-+--e-> 40 29 
Antero-posterior diameter of spine at top below tubercular enlargement.............-. 42 21 
% Vioures in italics denote approximate measurements. 
