ClipArt ETC
"Nervous system of bee. A, of larva. B, of adult. a., Antenna; mx., maxilla; m., mandible; w., origin of wing; 1-5, abdominal ganglia." -Thomson, 1916

Bee Nervous System

"Nervous system of bee. A, of larva. B, of adult. a., Antenna; mx., maxilla; m., mandible; w., origin…

"Side view of skull of Cape Jumping Hare. Pmx, premaxilla; Mx, maxilla; Ma, malar; Fr, frontal; L, lachrymal; Pa, parietal; Na, nasal; Sq, squamosal; Ty, tympanic; ExO, exoccipital; AS, alisphenoid; OS, orbito-sphenoid; Per, mastoid bulla." —The Encyclopedia Britannica, 1903

Cape Jumping Hare

"Side view of skull of Cape Jumping Hare. Pmx, premaxilla; Mx, maxilla; Ma, malar; Fr, frontal; L, lachrymal;…

"The skull of a cod. b, branchiostegal rays born on c.h., the ceratohyal bone; d, dentary portion of the mandible; f, frontal; h.m., hyomandibular; i.o., interoperculum; l, lachrymal; m, maxilla; n, nasal; o, operculum; p.m., premaxilla; p.o., preoperculum; p.s., parasphenoid; q, quadrate; s.o., sub-operculum; s.oc., supra-occipital." — Galloway

Cod Skull

"The skull of a cod. b, branchiostegal rays born on c.h., the ceratohyal bone; d, dentary portion of…

"Cypris, side view, after removal of one valve. e., Eye; A.1, first antennae; A.2, second antennae; MN., mandibles; mx.1, first maxilla; mx.2, second maxilla; f.1, f.2, thoracic legs; Ab., rudimentary abdomen." -Thomson, 1916

Cypris

"Cypris, side view, after removal of one valve. e., Eye; A.1, first antennae; A.2, second antennae;…

"Longitudinal and Vertical section of the skull of a dog, with mandible and hyoid arch. an, anterior narial aperture; MT, maxillo-turbinal bone; ET, the ethmo-turbinal; Fr, frontal; Pa, pariental; IP, interparietal; SO, supra-occipital; ExO, sphenoid; OS, orbito-sphenoid; PS, presphenoid; Pl, palatine; Vo, vomer; Mx, maxilla; PMx, premaxilla; sh, stylo-hyal; eh, epi-hyal; ch, cerato-hyal; bh, basihyal; th, thyro-hyal; s, symphysis of mandible; cp, coronoid process; cd, condyle; a, angle; id, inferior dental canal. The mandible is displaced downwards, to show its entire form; the * indicated the part of the cranium to which the condyle is articulated." —The Encyclopedia Britannica, 1903

Dog Skull

"Longitudinal and Vertical section of the skull of a dog, with mandible and hyoid arch. an, anterior…

"Side view of skull of horse, with the bone removed so as to expose the whole of the teeth. PMx, premaxilla; Mx, maxilla; Na, nasal bone; Ma, malar bone; L, lacrymal bone; Fr, frontal bone; Sq, squamosal bone; Pa, parietal bone; oc, occipital condyle; pp, paroccipital process; i, the three incisor teeth; c, the canine tooth; pm1, the situation of the rudimentary first premolar, which has been lost in the lower, but is present in the upper jaw; pm2, pm3, and pm4, the three fully-developed premolar teeth; m, the three true molar teeth." — Encyclopedia Britannica, 1893

Horse Skull

"Side view of skull of horse, with the bone removed so as to expose the whole of the teeth. PMx, premaxilla;…

Inferior maxilla of a horse-anterolateral view. Labels: a, body; b, b', rami; c, neck; d, mental foramen; e, buccinator; e', masseter surface; f, f', inner surface of ramus; g, molor alveoli; g', anterior border; g', bar, bounding diastema; h, h', h', posterior border. The angle lies between h' and h'; i, condyles; km coronoid processes; l, maxillary space; m, inferior dental foramen; n, sigmoid notch.

Inferior Maxilla of a Horse

Inferior maxilla of a horse-anterolateral view. Labels: a, body; b, b', rami; c, neck; d, mental foramen;…

"Appendages of Norway lobster. Ex., Exopodite: En., endopodite; protopodite dark throughout; Ep., epipodite. 1. Antennule--E., position of ear; 2., antenna--K., opening of kidney; 3. mandible--P., palp; 4. first maxilla; 5. second maxilla--B., baler; 6. first maxillipede; 7. second maxillipede; 8. third maxillipede--the basal joint of the protopodite is called coxopodite, the next basipodite; the five joints of the endopodite are called--ischiopodite (i.); meropodite (m.); carpopodite (c.); propodite (p.); dactylopodite (d.); 9. forceps--(7) coxopodite; (6) basipodite, the joints of the endopodite are numbered; 10-13. walking legs; 14. modified male appendage; 15-18. small swimmerets; 19. large paddles." -Thomson, 1916

Norway Lobster Appendages

"Appendages of Norway lobster. Ex., Exopodite: En., endopodite; protopodite dark throughout; Ep., epipodite.…

The largest bones of the face, excepting the mandible, and form, by their union, the whole of the upper jaw.

Maxilla

The largest bones of the face, excepting the mandible, and form, by their union, the whole of the upper…

The largest bones of the face, excepting the mandible, and form, by their union, the whole of the upper jaw.

Maxilla

The largest bones of the face, excepting the mandible, and form, by their union, the whole of the upper…

Internal surface of left maxilla and palate.

Maxilla and Palate

Internal surface of left maxilla and palate.

The inner aspect of the right superior maxilla.

Inner Aspect of Superior Maxilla

The inner aspect of the right superior maxilla.

Ossification of superior maxilla. A, outer side. B, inner side. C, under side. Labels: a, nasal process; b, orbital plate; c, anterior nasal spine; d, infraorbital groove; e, infraorbital foramen; f, anterior palatine groove; g, palatal process; h, premaxillary suture; i, alveolar process.

Ossification of Superior Maxilla

Ossification of superior maxilla. A, outer side. B, inner side. C, under side. Labels: a, nasal process;…

An outer view of the right superior maxilla.

Outer View of Superior Maxilla

An outer view of the right superior maxilla.

The maxilla (upper jaw bone).

The Maxilla

The maxilla (upper jaw bone).

Development of maxillae shown at birth.

Development of Maxillae

Development of maxillae shown at birth.

"The head of female mosquito (culex). a, antenna; c, clypeus; h, hypopharynx; m, mandibles; ma., maxillas; m.p., maxillary palpus; l, labium; la., labrum (epi-pharynx)." — Galloway

Mosquito Head

"The head of female mosquito (culex). a, antenna; c, clypeus; h, hypopharynx; m, mandibles; ma., maxillas;…

Nasal septum as seem from the left side.

Nasal Septum

Nasal septum as seem from the left side.

"Diagrammatic vertical section of the head and proboscis of a mosquito. l, labium bent as when the other parts pierce the skin; p, pumping organ; o, hypopharynx through which is a channel for the exit of the secretion of the poison and salivary glands pn and s; d, exit for poison and saliva; m, maxilla; ma, mandible; la, labrum below which is the channel conducting the food from the inlet at n; st, stomach." —Davison, 1906

Proboscis

"Diagrammatic vertical section of the head and proboscis of a mosquito. l, labium bent as when the other…

This illustration shows the skull of a rattlesnake. ar, articular portion of lower jaw; de, dentary portion; bo, basi-occipatal; mx, maxilla, bearing poison fang; na, nasal; pl, palatine, the front end being represented by a dotted line as though seen through the maxilla; pmx, premaxilla; po, post frontal; pr, prefrontal; pt, pterygoid; qu, quadrate; sq, squamosal; tr, transverse bone.

Rattlesnake Skull

This illustration shows the skull of a rattlesnake. ar, articular portion of lower jaw; de, dentary…

A side view of the skull. Labels: O, occipital bone; T, temporal bone; Pr, parietal bone; F, frontal bone; S, sphenoid; Z, malar; Mx, maxilla; N, nasal; E, ethmoid; L, lachrymal; Md, inferior maxilla.

The Skull

A side view of the skull. Labels: O, occipital bone; T, temporal bone; Pr, parietal bone; F, frontal…

The base of the skull. The lower jaw has been removed. At the lower part of the figure is the hard palate forming the roof of the mouth and surrounded by the upper set of teeth

Base of the Skull

The base of the skull. The lower jaw has been removed. At the lower part of the figure is the hard palate…

"Schizognathous skull of common fowl. pmx, premaxilla; mxp, maxillopalatine; mx, maxilla; pl, palatine; pt, pterygoid; vo, vomer." -Whitney, 1911

Bird Skull

"Schizognathous skull of common fowl. pmx, premaxilla; mxp, maxillopalatine; mx, maxilla; pl, palatine;…

A side view of the skull. Labels: O, occipital bone; T, temporal; Pr, parietal; F, frontal; S, sphenoid; Z, malar; Mx, maxilla; N, nasal; E, ethmoid; L, lachrymal; Md, inferior maxilla.

Side View of the Skull

A side view of the skull. Labels: O, occipital bone; T, temporal; Pr, parietal; F, frontal; S, sphenoid;…

"Viper is a genus of venomous snakes. This family includes many important forms– e. g., the common adder, the asp, extending as far N. as Sweden; the African horned viper and puff adder, the Indian daboia or Russell's viper, and the Indian Echis carinata. The head is relatively broad, somewhat triangular, and generally covered with scales; the eye has a vertical pupil, and there is no pit between it and the nostril; the maxilla bears on each side one functional fang, usually with several reserve fangs beside it; the poison is virulent. The vipers are widely distributed through Europe and Australia; the majority are African. As far as is known they are viviparous."—(Charles Leonard-Stuart, 1911)

Common Viper

"Viper is a genus of venomous snakes. This family includes many important forms– e. g., the common…

"Viper is a genus of venomous snakes. This family includes many important forms– e. g., the common adder, the asp, extending as far N. as Sweden; the African horned viper and puff adder, the Indian daboia or Russell's viper, and the Indian Echis carinata. The head is relatively broad, somewhat triangular, and generally covered with scales; the eye has a vertical pupil, and there is no pit between it and the nostril; the maxilla bears on each side one functional fang, usually with several reserve fangs beside it; the poison is virulent. The vipers are widely distributed through Europe and Australia; the majority are African. As far as is known they are viviparous."—(Charles Leonard-Stuart, 1911)

Common Vipers

"Viper is a genus of venomous snakes. This family includes many important forms– e. g., the common…