premaxillaries

The premaxillaries and the tip of the lower jaw more and more prolonged; both of them becoming finally strongly and often extravagantly hooked, so that either they shut by the side of each other like shears, or else the mouth cannot be closed. (_b_.)

Scientific American Supplement, No. 275, April 9, 1881 Various

The premaxillaries, vomer, and nasals do not belong to the cranial scheme; they are covering bones connected with the ethmoid.

Form and Function A Contribution to the History of Animal Morphology

(N) of the former, again, are remarkably long when compared with the similar bones of the latter, and the premaxillaries (PMX), instead of being projected forward along the horizontal plane of the base of the skull, are deflected sharply downward.

Darwin, and After Darwin (Vol. 1 and 3, of 3) An Exposition of the Darwinian Theory and a Discussion of Post-Darwinian Questions George John Romanes 1871

-- Measure from the tip of the premaxillaries or outer insertion of the front teeth (incisors) along the palate to the nearest inner edge of the foramen magnum.

Natural History of the Mammalia of India and Ceylon Robert Armitage Sterndale 1870

I then took the palatal measurement, from the outer edge of the border in which the incisors are set to the anterior inside edge of the brain-hole, or foramen magnum, and I find that this standard is sufficiently accurate, and is 5.50 of the length taken from the tip of the premaxillaries to the end of the sacrum.

Natural History of the Mammalia of India and Ceylon Robert Armitage Sterndale 1870

_Globicephalus_ this effect is caused by the premaxillaries.

Natural History of the Mammalia of India and Ceylon Robert Armitage Sterndale 1870

Bantams; and lastly, the protuberance of the skull with the ascending branches of the premaxillaries partially aborted, together with the other differences before specified, are eminently characteristic of Polish and other Crested fowls.

The Variation of Animals and Plants Under Domestication, Vol. I. Charles Darwin 1845

The inner processes of the two nasal bones come into contact with each other, owing to the complete absorption of the ascending branches of the premaxillaries.

The Variation of Animals and Plants Under Domestication, Vol. I. Charles Darwin 1845

Cochins; as is the great breadth of the frontal bones in Dorkings; the separation and open spaces between the tips of the ascending branches of the premaxillaries and nasal bones, as well as the front part of the skull being but little depressed, characterise Hamburghs; the globular shape of the posterior part of the skull seems to be characteristic of laced

The Variation of Animals and Plants Under Domestication, Vol. I. Charles Darwin 1845

Other differences might be added: thus the plane of the condyles is somewhat modified, and the terminal edge of the premaxillaries forms an arch.

The Variation of Animals and Plants Under Domestication, Vol. I. Charles Darwin 1845