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EXPLANATION

OF

PLATE 14.

duct of Stenonian (lateral) nasal gland

glands

lachrymal duel --' -:
■

vein >.............---~-

tendinous longitudinal hand lying above the cartilage
upper tendon of m. maxillo-lahialis
sinus-hair
sinus-hair

1

----~--

—-t~

second tendon of m. maxillo-labialis
calcification in the cartilaginous septu
trigeminus-hranches
longitudinal m. nasalis fibres
third tendon of in. maxillo-labialis

trigeminus-hranches
m. nasalis fibres

fourth tendon of m. maxillo-labialis
lowermost tendon of m. maxillo-lah.
trigeminus-hranches

tongue

sebaceous glands |

1

J

nasal cavity
incisor

organon Jacobsonii
m. buccinatorius, a

m. buccinatorius, b

buccal glands

m. buccinatorius, b

m. mentalis

Fig. 1. Transverse section of the proboscis of Talpa. Cartilage
and tendons are painted with various blue tints, glands and
nerves with yellow, muscular fibres redbrown. The redbrown
sinuous streaks are transverse /?«.sa//s-fibres.

Fig. 4. Transverse section of anterior part
of the head of Mijopotamus. a part of m.
buccinatorius inserting into the intermaxillary
bone; b part of the same surrounding
the cavity of mouth. The brown patches in
the upper part of the figure are hair-follicles
of sinus-hairs.

m. maxillo-labialis, porlio sup., right and left united

fascia into which the fascicles
of the pars rimana are inserted
(viz.: tendon of this muscle)

fascicle of m. maxillo-lah., p. sup.
fibrous leaf with rectus-hundle
dorsal rectus-bundles

fascicle of m. maxillo-lab., p. sup.

lateral rectus-bundles

transverse rectus-bundles in septum

m. maxillo-lab., portio inferior

pars supralabialis m. buccinatorii

pars rimana m. buccinatorii

transverse rectus-bundles below septum
ventral rectus-bundles

dands

m. maxillo-labialis, port, inf.,
+ m. nasolabialis

sinus-hair

ventral rectus-bundles
ventral rectus-bundles, a
n. trigeminus
m. nasolabialis

rectus-bundles going into the upper

lip, c

pars rimana m. buccinatorii

glands

rectus-bundles forming a horizontal layer, b

Fig. 2. Transverse section of proboscis of Indian Elephant.
In order that the various muscles might easier be distinguished
the pars rimana and the rectus-bundles have been painted with
another red tint than have the maxillo-labialis and the supralabialis
.

I"ig. 3. Transverse section through proboscis
of Tapirus americanus. The inferior
portion of the m. maxillo-labialis, the m. nasolabialis
and the pars rimana form in this
place one continuous muscular sheath. The
carmine and blue spots are sections of arteries
and veins. — a, b, c see text p. 71.

Fig. 5—8. Diagrams of the arrangement of the rectus-fascicles in various points of the proboscis of the
Elephant; transverse sections, the fig. 5 representing the most proximal, the fig. 8 the most distal section. For
details see the text p. 40—41. — n nasal tube.

Fig. 9. Diagram of the pars rimana of Elephant; proboscis seen from the ventral side, i incisor. See text p. 36.

Fig. 10. Diagram of the pars supralabialis of Elephant; proboscis seen from the ventral side, z incisor. See text p. 37.

base of proboscis

Fig. 11. Part of skull etc.
of Elephant with the musculus
lateralis nasi.

cartilaginous wing of nose

fascicles of m. lateralis nasi arising from intermax. bone

cartilaginous septum of nose
eye

fascicles of m. lateralis nasi arising from nasal bone