300 DR. J. MURIE ON THE ORGANIZATION OF THE CAAING WHALE. 
PLATE XXXVII. 
Fig. 63. Body in profile, exhibiting the myology &c. when the panniculus has been 
taken away. The right moiety of the rostral blubber remains in place. 
Letters other than those used in fig. 58 are:—Z.d, longissimus dorsi, +J.c.e, levator 
caude externus; Sp.d, spinalis dorsi, +TL.ci, lev. caud. internus; S.cd, supracaudal ; 
I.cd, infracaudal; S.J, sacrolumbalis; S.mg, serratus magnus; Rh, rhomboideus; 
C.a, cervicalis ascendens; L.a.s, levator anguli scapule: 7.c, transversalis cervicis ; 
Sp, splenius; J.sp, infraspinatus ; L.cl, levator clavicule; D, deltoid; T.ma, teres 
major; Di, digastric; Ma, masseter; *, extra cheek-fibres ; Bu, buccinator; Te, tem- 
poral; Op, orbicularis palpebrarum ; WJ, naso-labialis or premaxillary; Of, occipito- 
frontalis; isan, levator labii superioris aleque nasi; B, Blow-hole, and arrow 
leading therein; f, hook pulling out tendons and superincumbent fascia of sacro- 
coccygeus. 
Fig. 64. An upper view of the skull, in which the superior muscles of the blow-hole are 
dissected on the right side. 
Fig. 65. Hinder part of skull, showing second layer of muscles acting on the blow-hole. 
Fig. 66. Third layer of the same, also in profile. 
Fig. 67. Short deep muscles of the neck, on their lateral aspect. 
The lettering of these four figures runs:—B, blow-hole ; spe, spiracular cavity; p, pre- 
maxillary sac; m, maxillary sac; nf, naso-facial sac; N74 Ni’, naso-labialis; Of, 
occipito-frontalis; L/san, ley. 1.s. al. nasi; Lsp, levator superioris proprius; Z, zygo- 
maticus &c.; Py, pyramidalis &c.; Ze, temporal ; Rp, recti postici; Os and 02, obliquus 
superior and inferior; Zms, trachelo-mastoid; J¢s, interspinales, anterior dorsal 
region; Ch, Stm, Lel, and Las, cut insertions of ceph.-hum., sterno-mastoid, lev. 
clay., and ley. ang. scap.; 2, transverse process of axis. 
Fig. 68. Partial view of under surface of the skull, the neck, and thorax, the ribs of the 
latter being taken away on the right side. 
Sca, scaleni; Lc, longus colli; Ra.mi, rectus anticus minor; Ha.ma, rectus anticus 
major, severed ; 2/, rectus lateralis; Sph.n, sphincter of post-nares; Pt, pterygoideus. 
Fig. 69. Sternum and sternal ribs, from the inside: St, osseous sternum; 7's, triangu- 
laris sterni. 
Fig. 70. Inner aspect of the left pectoral limb. 
S, subscapularis; Smg, serratus magnus, insertion cut; Ssp, supraspinatus; Z'ma, teres 
major; Lad, Pc, & Ch, lat. dors., panniculus, and ceph. hum. insertions; 7’, triceps ; 
Cb, coraco-brachialis ; Pt, palmar tendons. 
Fig. 71. The right scapula, from within: cp, coracoid process, and Ssp, the supra- 
spinatus, in its groove. 
Fig. 72. Caudal moiety, minus flukes, of the White-beaked Bottlenose (Lagenorhynchus 
albirostris), dissected, and showing correspondence with what obtains in 
