The lachrymal canal opens either external to or upon the margin of the orbit, and the nasal processes of the premaxillae never quite reach the frontals.
The main part of the maxillae however lies anterior to the suborbital bar, and extends forwards along the side of the premaxillae forming all the lateral part of the beak (figs.
The =anterior narial opening= lies at the anterior end of the skull, and is bounded by the premaxillae and nasals.
The premaxillae are small, and the long rostrum is chiefly composed of the maxillae and nasals with the mesethmoid and vomer.
The anterior part of the premaxillae is without teeth, and a toothless predentary or mento-meckelian bone is present.
The premaxillae are very small,--in Bradypus quite vestigial.
The teeth are always attached to the maxillae, premaxillae and mandibles, never to any of the other bones.
The nasals and jugals are short, and thepremaxillae very large.
Each forms part of the posterior boundary of one of the anterior nares, and the two are separated from one another in the middle line by the nasal process of the premaxillae (fig.
In the rattlesnake (Crotalus) and other venomous snakes the premaxillae is extremely small and toothless.
In front of the nasal openings the face is prolonged as a narrow beak or rostrum of varying length, formed by the maxillae and premaxillae surrounding the vomer and large mesethmoid (fig.
The premaxillae and the end of the mandible are greatly expanded.
The posterior teeth of the upper jaw, and almost all those of the lower jaw, are received into interdental pits; the orbital margins are not raised; and the premaxillae are hardly at all expanded.
From anteriormost projection of the premaxillae to posteriormost projection of the occipital condyles (a to a').
From anteriormost projection of premaxillae to posteriormost part of bony palate (c to c').
The premaxillae are either small and separated in front, or rudimentary; and the first phalange of the middle finger when in repose is laid back on the metacarpus.
The premaxillae are always well developed, with their palatal portions forming a suture and denning the boundaries of distinct palatine foramina (in place of being rudimentary, as in Nycteridae and Rhinolophidae).
In this group the premaxillaeare in contact or but very slightly separated; the ears are large, with the tragus small; the dental formula is i.
Nycteris, which is common to Africa and the Malay Peninsula and Islands, has ossified premaxillae and upper incisors (i.
The premaxillae have their palatal portion imperfectly developed, and united by a slender process with the maxillae.
Of the two genera, Megaderma, as represented by the five species of false vampires, is distinguished by the absence of ossified premaxillae and upper incisors (i.
Stenoderma achradophilum, found in Jamaica and Cuba, with the last, from which it is scarcely distinguishable externally except by its much smaller size, differs in the absence of the horizontal plate of the premaxillae on the palate.
Again, while the form of the skull is vespertilione, the relation of the vomer to the front end of the premaxillae is of the phyllostomine type.
The upper incisors are in proximity to the canines; the premaxillae widely separated; the ears medium or large; the dental formula is i.
The palatine processes of the premaxillae do not form a suture.
Tail short or absent, when present free from the interfemoral membrane; second finger with a claw; premaxillae united in front.
The premaxillae are toothless--at least in adults, for two teeth are present in the {332} young.
The orbit is completely encircled by bone; the auditory bulla is not swollen; the premaxillae are small.
The Whale's skull has very long premaxillae which, however, do not, except in the extinct Zeuglodonts, bear any teeth.
The premaxillae are large in relation to the great incisors.
The premaxillae are furnished above with a slight protuberance directed towards {215} the free end of the nasals, which may be related to the presence of a short proboscis.
As in the Cetacea, the nasal bones are limited in size, and the premaxillae send up processes to join the frontals and the nasals.
The high, narrow alary processes of the premaxillae extend dorsally about two-thirds of the height of the snout.
In the Nantucket skull the rostral portion of the premaxillae is high and at the distal end vertical.
At the middle of the beak the premaxillae are higher than the maxillae on which they rest.
The most noticeable characters which it presents are that the premaxillae are flat proximally, and that the teeth are small, sharp-pointed and open at the roots.
Narrow, deep grooves between ossification andpremaxillae on each side, or, in other words, premaxillae more closely approximated to sides of mesirostral distally.
Similar to preceding, but mesirostral ossification higher than premaxillae at distal end and convex above; less abruptly widened posteriorly and posterior termination flat.
Entirely similar to two preceding, but premaxillae a little curved out from mesirostral ossification and left premaxilla opposite maxillary notch rather strongly inclined, nearly vertical.
Condition of superior surface of skull very similar to that of preceding, but premaxillae rather low at distal end.
Both premaxillae are much constricted on the sides of the blowhole and the effect is heightened by the greater expansion of the proximal ends of the former.
In bidens it is lower than the premaxillae and, in the Nantucket skull at least, ends anteriorly at the same point as the vomer, or, in other words, much behind the end of the beak.
The premaxillae are more depressed immediately in front of the blowhole than in M.
The latter portion of the premaxillae instead of being low, with a straight inferior margin, is very high, with the inferior margin strongly convex.
Mesirostral at distal end rather lower than premaxillae and concave superiorly; more posteriorly assuming form of a narrow ridge, with a deep channel between it and premaxillae on each side.
Width of the premaxillae and the nasals taken immediately anterior to the upper incisors (not greatest width of nasals which is attained farther anteriorly).
Upper ends of thepremaxillae nearly symmetrical, moderately elevated, slightly expanded, and not curved forward over the nostrils.
Premaxillae raised into tuberosities in front of the nostrils.
Premaxillae concave in front of the nostrils, as wide at the middle of the rostrum as at the base, and nearly or completely concealing the maxillae in the anterior half of this region.
The shape of the skull closely resembles that of albicaudatus, although the rostrum, nasals, upper incisors and posterior tongues of the premaxillae tend to be narrower.
They resemble trumbullensis in size of tympanic bullae, extension of the premaxillae posterior to the nasals and shape of the nasals.
The premaxillae are not narrower, nor is the frontal region narrower or more constricted than in T.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "premaxillae" in a variety of sentences. We hope that you will now be able to make sentences using this word.
