Skull slenderer, less angular and relatively narrower across mastoidal region; cranium arched with hind part flattened; external pterygoid region less expanded; teeth relatively small, especially last upper molar.
The degree of inflation of the mastoidal bullae elsewhere varies geographically.
In lack of inflation laterally of the mastoidal bullae the specimens agree with artus.
The uninflated mastoidal bullae "tip the balance" slightly in favor of artus to which the specimens from four miles north of Terrero are here referred.
For example, the mastoidal bullae of the 25 specimens of goldmani from two and a half miles north of El Fuerte, Sinaloa, are intermediate in size as between those of goldmani and artus.
There is no overlap in length of body, basilar length, zygomatic breadth, mastoidal breadth or length of nasals.
V-shaped interpterygoid space, and smaller average dimensions of the skull, notably in mastoidal breadth and length of the rostrum.
Skull: Braincase less inflated; nasals truncated posteriorly as opposed to rounded; zygomatic and mastoidal breadths less; rostrum shorter but narrower; upper incisors narrower and shorter.
They are markedly smaller in every measurement taken, except zygomatic and mastoidal breadths, and extension of premaxillae posterior to nasals.
Tympanic bullae larger and markedly more inflated; nasals longer; zygomatic and mastoidal breadths greater; rostrum longer and more depressed; upper incisors longer and wider; molariform teeth smaller.
The narrower mastoidal breadth and slightly less inflated tympanic bullae of the male from the Kaibab Plateau may reflect merely individual variation or may represent intergradation in these features with nevadensis.
The mastoidal breadth is greater than in any other adult male and amounts to more than the postpalatal length.
However, it is not clear whether or not this greater mastoidal breadth is more than a function of the large size.
Excepting the greater mastoidal breadth and generally larger size of the skull, the cranial features distinguishing males of spadix from longicauda are features in which spadix shows approach to noveboracensis.
However, skulls of females of oregonensis have relatively longer tooth-rows and are relatively broader across the zygomata and mastoidal processes.
Iowa State College, from Moorland, Iowa, only about six miles southeast of Barnum, likewise is indistinguishable from primulina except for having a white winter coat and in being relatively broad in the mastoidal region.
This specimen, then, shows approach to noveboracensis in narrowness of the mastoidal region, to primulina in other respects and to spadix.
The posterior portion of the ear-capsules (the mastoidal and squamosal regions) is not inflated--a character which separates this genus from Galago.
The mastoidal or posterior portion of the ear-capsules, and the neighbouring squamosal region of the cranium are swollen, as among the Galagos.
USBS) from the head of the Rio Mimbres in New Mexico in which, as our comparisons show, the inflation of the mastoidal bullae exceeds that of any Texan specimen of S.
USNM are narrower across the mastoidal region than is the holotype.
For example, in Arizona some specimens are extensively white and some others have the braincase flattened and the mastoidal bullae much inflated.
The latter specimen is an adult male, with much inflated mastoidal bullae, nearly straight dorsal profile on the skull, relatively shallow braincase, and only slightly worn teeth.
Smaller in frontonasal length, mastoidal breadth, and length of auditory bulla; color more buffy, with fewer black hairs dorsally.
Skull of medium size (see measurements); frontonasal andmastoidal regions much enlarged; interparietal transversely narrow.
Upper parts darker; skull, when specimens of equal age are compared, averaging larger inmastoidal breadth, interparietal breadth and basal length.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "mastoidal" in a variety of sentences. We hope that you will now be able to make sentences using this word.
