﻿130 



DR. J. MURIE ON THE 



ARMADII 



tlie 



cartilages. Tlie neck-vertebrae are exhibited with less angularity than is natural to 



parts. 



C the cervical series ; 1, atlas ; 3, 3, 4, coalesced bodies of the axis, third, and fourth 



rcrtebne; 5, fifth; 6, sixth, and 7, the seventh nuchal segment; c/, clavicle; /, fibrocar- 

 tilaginous inner end of clavicle (the precoracoid piece of Parker) ; R\ first rib; sr", sr\ second 

 and sixth sternal ribs ; m, manubrium or praesternum; j?, xiphisternum ; *, terminal cartila 



ge 



of same. 



surface 



and showing in part the open spinal canal. 



C, cervical series ; 1, atlas ; 2, 3, conjoined second and third vertebrse ; 4, partially separate 



arch of the fourth cervical; 5, 6, 7, succeeding cervicals, the last somewhat adherent to the 



dorsal ; 2)', first dorsal ; D^, second dorsal vertebra. 

 Fig. 29. A front view of the seventh cervical and foremost two dorsal (= the trivertebral bone of Huxley 



in the Glyptodon) vertebral ribs and manubrial portions. Letters as in the two preceding figures 



and all these of natui^al dimensions. 

 Fig. 30. Posterior surface of the last sacral vertebra and anchylosed ischial tuberosities, showing the 



articular facets of ischia whereon the bony arch of the pelvic shield play during cun^ature of 



the body and inflexion of tail. 



/i, tuberosity of ischium; ^, wide transverse process of sacral vertebra; 5, body; c, spinal 



canal; 7?/, postarticular facet; af^ process surmounting auterior articular facet; Wj neural 



spine. 

 Fig. iiL Sketch showing foreshortened view of the fleshy snout and open nares; Uy narial orifices, with 



incurved sesamoid cartilages. 

 Fig. 32. Dissection, lower aspect of, of jaws, neck, and chest. On the left side a superficial, and on 



the right a deep layer is exhibited. Reduced to about -| nat. size. Lettering employed 



as undermentioned : 



On right side. 

 Ch, gcniohyoidcus. 

 %; styloglossus. 

 hi/, hy])()glossal nerve. 



ffjj hyoglosstis muscle. 

 ra^ carotid artery. 



Hama^ rectus capitis anticus major. 



Cj)x, cervical plexus of nerves (included 



within dotted line) . 

 Bpx, brachial plexus of nerves. 

 Sh, 8ub('hivius muscle. 

 Spc, supracostahs. 



On left side. 

 Mhj mylohyoideus ; Ma^ masseter. 

 Shy, stylohyoideus ; /, trachea. 

 Sthy sternohyoideus. 

 Stm, sternomastoid, and Stm* its thoracic 



extension. 

 Clrrij cleidomastoid ; Dj deltoid. 

 Pmi, pectoralis minor, near insertion. 

 Pma. pectoralis major; By biceps. 

 Ty triceps^ its third and fi.rst divisions. 

 Aiy anconeus intemus. 

 Lad, latissimus dorsi ; Eoy external oblique. 



reatly reduced sketch, in profile, of some of the pelvo-femoral muscles 



great sciatic foramen 



I'j 





Os, a portion of the so-called oblique sacral muscle as it traverses the 

 m, great sciatic nerve at diiferent parts of its course ; i7, iliacus ; Py, pyriformis ; Ge, gemelli ; 

 % quadratus femoris j Rf, rectus femoris ; Fe, vastus externus ; Adl, small portion of the 

 adductor lougU8 : //, the ilio-femoral strip of muscle ; Bf, biceps femoris ; Admff, adductor 

 magnui ; Smb & i, semimembranosus and -tendinosus j 1 the great, and 3 the third trochanter. 



part 



mid 



diaphragm 



been exposed by 



rrrnent of 



