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DR. J. MURIE ON THE ORGANIZATION OF THE CAAING WHALE. 
DESCRIPTION OF THE PLATES. 
PLATE XXX. 
. Drawing from nature of the young female Pilot Whale, Globiocephalus melas, 
Traill. To a scale of =’; of the natural proportions. 
. Dorsal aspect of the same Whale. 
. Its blow-hole, of nat. dimen.: @, anterior, and p, posterior lip. 
. The eye, about nat. size. 
PLATE XXXTI. 
. Foreshortened view of the head, looking into the opened mouth of the same 
female Globiocephalus. Considerably reduced in size. T,tongue; P, palate ; 
f; faucial membrane and folds; @, angle of the mouth. 
. Segment of the roof of the mouth, showing palatal rugosities, glands, and pre- 
maxillary teeth, the left series of which are complete: g, gutter; @, angle. 
. A left premaxillary tooth, nat. size, with outline of the gum (g): the ridges 
seen in cross section. 
. A longitudinal mesial section of the same tooth: p, pulp. 
. Left posterior mandibular tooth, seen from behind, and shown with gum-ridges 
as in fig. 7, also nat. size. 
. 10. A small portion of the faucial part of the palate, showing mucous crypts, 
¢, or fissures and glands, gl; fg, fungiform papille. 
. 11. Underview of the tongue, larynx, and part of the trachea, prepared chiefly 
to show the muscular structures. The superficial layer remains on the left, 
but a deeper dissection is made on the right side. 
f, frenum lingue; Gh, Gh*, genio-hyoid, entire and cut tendinous origin ; St.g, stylo- 
glossus; G.h.g, genio-hyo-glossus ; Hg', Hg’, hyo-glossus, first and second heads; 
Thy, interhyoideus; S.&-Mh, insertions of sterno- and mylo-hyoidei: 7h, thyroideus ; 
S.th, part of sterno-thyroid; C.th, crico-thyroid; Th.g/, thyroid gland; O.thy, occipito- 
thyroid; th, thyro-hyal; 7, thyroid cartilage ; /, thyro-hyoid ligament; tr, trachea; 
sin, superior laryngeal nerve; 8', hypoglossal nerve. 
Fig. 12. Upper or palatal aspect of the same parts. Arytenoid conjoined with epiglottic 
cartilages are seen protruding upwards, surrounded by their sphincter. 
T, tongue; P.g, palato-glossus; P.ph, palato-pharyngeus, cut across; Cs, Crm, & Ci, 
constrictores superior, medius, et inferior; ep, epiglottis; A, arytenoid cartilage; da, 
lingual (ranine) artery; hp.n, hypoglossal nerve; Zhy, interhyoideus; Sph, stylo- 
pharyngeus; @, cesophagus; tr, trachea; Shy, stylohyoideus; Stg, styloglossus; f, 
frenum lingue. 
