TESTUDO CULBERTSONIL 569 
The gular scutes are convex posteriorly, and do not encroach upon the position 
of the entosternal plate. 
The humeral scutes internally average seven and a half lines long, but externally 
expand before and behind, and join the axillary scutes and the fourth, fifth, and 
sixth marginal scutes. The abdominal scutes are three inches long, and join the 
sixth and seventh marginal and the inguinal scutes. 
ADMEASUREMENTS. 
Inches. Lines. 
Length of sternum at middle line, . ‘ ‘ i 10 
Breadth = at posterior margin of hyosternals, : 7 
Kstimated length of antero-posterior curve of the carapace, . 13 6 
Height, : j : : ‘ g ; 5 6 
TESTUDO CULBERTSONIIL.  Leicdly. 
(Tab. xii.) 
~ 
Emys Culbertsonii: Pr. Acad. Nat. Sei., vol. vi., p. 34. 
Testudo Culbertsonii: ib. p. 59. 
This species is established upon a nearly entire carapace and plastron, a little 
crushed out of its original form upon one side. It is much larger than Testudo Oweni, 
and is relatively less convex and high in comparison to its length and breadth. 
The marginal plates laterally are vertically convex. 
The sternum is concave, indicating a female individual, and the axillary and 
inguinal notches are directed downwards. . 
The carapace in the specimen has eleven vertebral plates. 
The first vertebral plate is two and a quarter inches long and one and a half 
inches broad. 
The second vertebral plate is octohedral, with alternately long concave and short 
straight sides, and articulates laterally with the first, second, and third pairs of 
costal plates. 
The third vertebral plate is quadrilateral, and articulates laterally with only the 
third pair of costal plates. The arrangement of the two last described vertebral 
plates is very similar in the recent Gophir. 
The other vertebral plates to the eighth inclusive are hexahedral. The ninth 
vertebral plate is quadrate, and is an accessory to the usual number introduced 
between the eighth and the penultimate, or inverted V-shaped plate. 
The second and third vertebral scutes are broader than long, quadrilateral, with 
the lateral margins bow-shaped. The fourth vertebral scute is considerably longer 
than broad, and the fifth is prolonged at its anterior part to join the former. 
The entosternal plate is pyriform, and is a little broader than long. 
The hyosternal plates are over five inches long, and articulate with the third to 
the angle inclusive of the sixth marginal plates. 
The hyposternals are four inches long, and articulate with the sixth and seventh 
marginal plates. 
72 
