Cope. ]} 62 [May 20, 
zygapophyses are well developed, and stand close together. The neural 
spine is compressed, and the basal portion points somewhat forwards. 
M. 
Hemet Ol GONtTUM 2 0.04 vxdag cede rteveeae ccs daceaoee ee teee eee ON 
WET tiCaleessse eee OOS 
tYansverse........... 009 
Vertical diameter of diapophysis..... Boron onaepeeeeoesce coeco, SWULS 
Expanse of posterior zygapophySis..........0-scssscseseesereee 009 
Anteroposterior diameter of base of neural spine ........ .005 
Transverse diameter of neural arch.........cseeccoverseoeoeee -006 
Diameter of posterior articular face { 
CLEPSYDROPS PEDUNCULATUS, Sp. nov. 
Established on two vertebrae obtained by Mr. Gurley, of a lizard of 
larger proportions than any of those belonging to the other species of the 
genus. One of these is a third cervical and the other is apparently a 
dorsal ; both differ from corresponding vertebree of GC. collettid and of C. 
lateralis in having elongate diapophyses for the attachment of the ribs. 
These are present in the other species, but are either very short, or sessile. 
The third cervical has a broad reverted anterior lip-like margin of the 
anterior articular face, which resembles the corresponding partin @. lateralis 
in not being produced below. The median line is keeled, and there isa 
shallow longitudinal groove on the upper part of the sides. The posterior 
articular face is regularly funnel-shaped. The diapophyses are very stout, 
and are directed a little downwards and strongly backwards. The articular 
faces are single, look downwards and outwards, and are wide above, and 
narrow below. The base of the neural canal is deeply incised, as in the 
other species. 
{ anteroposterior............. .015 
Weil sss sho0coomDboepo oe oCNED) 
Length of diapophysis. abover-.42 saeeeeeoe see eee 0o 
fs MVEILICH TS wearin iets teen SU 
{ anteroposterior........... .005 
4 | 
Diameter of centrum, | UTANSMELSC) ate oteyessvereteteisisvererietsmra Lae 
Diameter of diapophysis 
The dorsal vertebree exhibits a longer and more slender diapophysis 
whose base is vertically expanded, and with a shallow fossa before and be- 
hind. The superior half of the diapopnysis has a much greater anteropos- 
terior extent than the inferior. There is no recurved rim of the articular 
extremities, but the surface does not pass regularly into the foramen chord 
dorsalis, but by an abrupt descent at its mouth. The sides of the centrum 
are concave, and the inferior portion forms a’ prominent rounded rib. 
anteroposterior ..........---. -OLO 
Diameter of centrum tLANSVETSCisee shteice icici e oa OLD 
: Verticals Noone sineta saievs oe che eee OLO 
Hensth of diapophysis......¢... seca bes eee Oe 
Widthiafmeuralscanal:.\2)s..s:c.scciaee en meen eee OUGE 
