OCR Text |
Show in Uromastix spinipes the small bone which I term, following Parker, second supratemporal. On the dorsal surface of the skull I desire to direct attention to three features. In the first place, the parietal foramen lies entirely in front of the fronto-parietal suture. Secondly, the Text-fig. 4. 8 ON THE CRANIAL OSTEOLOGY OF THE MASTIGURE LIZARD. [ J a n . 1 7, A Squamosal region in various Lizards. A. Lacerta. B. Iguana. C. Uromastix. D. Tleloderma. (Lettering as in text-figs. 2 & 3.) unpaired frontal bone (text-fig. 2, p. 5) shows an unusual character, which is, however, approached in the Monitor. On each side, anteriorly, the bone sends a thin forwardly and outwardly directed process which passes between the prefrontal and nasal of each side and reaches the nasal vacuity. |