240 MR. W. K. PARKER ON THE OSTEOLOGY 
PLATE XXXVI. 
Syrrhaptes paradoxus. 
(Figs. 1-10 magnified two diameters.) 
Fig. 1. Basal view of skull. 
Fig. 2. Upper view of skull. 
Fig. 3. End view of skull. 
Fig. 4. Side view of skull. 
Fig. 5. Upper view of os hyoides. 
Lagopus scoticus. 
Fig. 6. Basal view of skull. 
Fig. 7. Upper view of skull. 
Fig. 8. End view of skull. 
Fig. 9. Side view of skull. 
Fig. 10. Upper view of os hyoides. 
PLATE XXXVII. 
Vanellus cristatus. 
(Figs. 1-10 magnified two diameters.) 
Fig. 1. Basal view of skull. 
pt. Posterior pterygoid process. 
l.o.f. Lateral occipital fontanelle. 
Fig. 2. End view of skull. 
Fig. 3. Upper view of skull. 
g.d. Passage for duct of nasal gland. 
Fig. 4. Side view of skull. 
c.g. Crista galli. 
5. Foramen ovale. 
5a. Foramen rotundum. 
Fig. 5. Upper view of os hyoides. 
ch. Connate ceratohyal. 
bh. Basihyal. 
uh. Urohyal. 
th.1. Distal thyrohyal. 
th.2. Proximal thyrohyal. 
Columba livia. 
Fig. 6. Basal view of skull. 
p-p. Posterior pterygoid process. 
Fig. 7. End view of skull. 
Fig. 8. Upper view of skull. 
Fig. 9. Side view of skull. 
Fig. 10. Upper view of os hyoides. 
PLATE XXXVIII. 
Syrrhaptes paradoxus. 
Side view of skeleton: nat. size. 
c.r. Rib of last cervical. 
d.r. 1st dorsal rib. 
s.r. 1st sacral rib. 
se. Scapula. 
sm. Sacrum. 
isc. ischium. 
mcp. Metacarpus. 
tmt. Tarso-metatarse. 
dg. Digits. 
cl. Calcaneal sesamoids. 
PLATE XXXIX. 
Tinamus robustus. 
(#ths nat. size.) 
sc. Scapula. 
sm. Sacrum. 
isc. Ischium. 
lp. Space for large pectoral muscle. 
h. The so-called hallux or 2nd toe. 
dg. Digits (8rd, 4th, & 5th). 
