The quadrate has both a median and a lateral depression, forming a strong lateral flange on the anterior edge; the columellar process is elliptical, and the supra-columellar crest is robust.
This shell would be a Fusus were it not for the tooth on the posterior extremity of the columellar lip.
They may be generally distinguished by the flatness of the columellar lip, and by the short canal or emargination, which is not reflected or raised, as in Buccinum.
Flat, planed, as the columellar lip of Purpura, fig.
A term applied to the prominences on the columellar lip of some univalve shells, particularly in the sub-family of Volutidae.
This family is included in the genus Voluta of Linnaeus, on account of the plaited columellar lip, a character by which that heterogeneous assemblage of shells is distinguished.
We may pass now to the special characters of the cervical vertebrae in the different groups.
The carotid canal perforates the basisphenoid and not the tympanic bulla.
In the Cervidae and Giraffidae the face is not bent down on the basicranial axis as it is in the Bovidae.
The atlas ossifies from three centres, one forming the mid-ventral portion, the others the two halves of the remainder.
Movable ribs are generally absent, and if present are small and do not reach the sternum.
The hyoid consists principally of the broad flat basi-hyal; the anterior cornua are but slightly ossified, while the thyro-hyals are not ossified at all.
Mammals show two principal kinds of exoskeletal structures which are entirely or partially dermal in origin, viz.
In all Ruminants the lachrymal is large and forms a considerable part of the side of the face; it often bears a considerable depression, the suborbital or lachrymal fossa, well seen in most of the smaller antelopes.
The maxillae are large, but do not extend back to cover the frontals as in the Odontoceti.
The thyro-hyals are ankylosed with the basi-hyal, which is connected with the large forked stylo-hyals by ligament only.
Lying laterally to these nerve openings is seen a patch of cartilage, the =stapes=, which is homologous with the stapes or proximal element of the columellar chain in the frog.
The ossicles are homologous as a whole to the hyomandibular of fishes and to the columellar chain of Sauropsids and Amphibians.
The =columellar chain=, which has been already described (p.
Columellar margin rather thickly covered with callus, united above to the outer lip.
Aperture somewhat semicircular and oblique, small; peristome slightly expanded; umbilical callosity yellowish or pellucid whitish, defined towards the base of the columellar margin.
Columellar margin oblique, white or partly tinged with reddish brown, thickened and terminating below within the edge of the lip.
Columellar margin oblique, straightish, covered with a callus, curving into the broad basal sinus.
Moreover, this probability is strengthened by the fact that the gens is here found in connection with an antecedent and more archaic organization, which was still the unit of a social system, a place belonging of right to the gens.
When they agree in the systems of different tribes, and even of different families of mankind, as in the Turanian and Ganowanian, they establish their fundamental identity.
With myself a female the same relationships are reversed as in previous cases.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "columellar" in a variety of sentences. We hope that you will now be able to make sentences using this word.
