﻿MURIE ON THE THREE-BANDED ARMADILLO. 



131 



Dph, diaphragm, 

 vc orifice of vena cava. 



oe, oesophagal openings beneath which is the 



aortic cleft. 



H; heart. 



Lj lung. 



aOj abdominal aorta, 

 psl, psoas ligament. 



- 



akuy external iliac artery and anterior crural 



nerve. 



iij internal iliac arterial division 



Q/, quadratus lumborum emerging from 



chest. 



IpSj ilio-psoas muscle. 

 Pe^ pectineus. 



infracaudal 



Scy sacrococcygeus. 



IsCy part of ischiococcygeusj at origin 



Osj oblique sacral muscle. 



Pj pubic arch. 



0/ obturator foramen. 



Tab. XXVI. 



Pig. 35. Aside view of the eudoskeleton of Tolypeutes conurus, minus the limbs, in illustration of the 



curvature of the spine and the manner in which skull (in outline) and tail are tucked together 

 when the body is rolled up : compare figs. 2, 3 & 9. Nearly nat. size. A cut portion of the 

 inferior arch of the pelvic shield remains in situ. 



Fig. 36. Bones of the pelvis and tail, from above, the carapace being removed. Reduced in size. 



Letters in this and preceding figure correspond, and are as follows:— C, cervical rcvteLraej 



a 



1/ atlas; 2,3, coossified axis to third; 4, 5, 6, 7, remaining ncck-picccs; x, xiphistermim ; 



(arrow) pointing between 2nd and 3rd lumbar vertebrae denotes the axis or hinge of cur- 

 vature of the posterior part of the spinal column ; s, spinous process, or ncurapophysis : 

 m^ metapophysis ; h^ h^mapophysis ; af^ articular facets^ or anterior zygapophyiics ; pf, post- 

 articular facets (= postzygapophyscs) ; b^ body and haemal process ; t, transvcne pro<x'S> ; 

 chy chevron bone (= hoemapophysis) ; Z*, last lumbar vertebra ; ass, anterior tupcrior f^pinr 

 (crest of ilium) : aisj anterior inferior iliac spinous process; a^ acetabulum; ffsf, great sriatic 

 foramen; ofy obturator foramen; p, pubic arch; sp placed between two tubercles equivalent t(* 



Fig. 37. 



a double ischial spine; tb, tuberosity of ischium; ar, section of part of the bony arch of the 



exoskeletal pelvic shield. 



The left humerus, its anterior face. Of natural size. 



dj deltoid eminence ; cf^ condyloid foramen ; h, head ; o, outer, and i inner tuberosities. 

 Fig. 38. Exterior surface of the same bone. 

 Fig. 39. A lower segment of the humerus on its internal aspect. 

 Fig. 10. Left radius and ulna on their outer aspect. 

 Fig. 41. The same bones as seen from behind. 



U, ulna; R, radius; s, sigmoid notch ; o, olecranon; st, styloid process of the radium. 

 Fig. 42. A segment of the right scapula, to exhibit by a post-inferior view,>, the glenoid surface, and 



a, the inner curvature of the acromion. 

 Fig. 43. The outer dorsal superficies of the same entire shoulder-blade, also of nat. size. 



a, acromion; m, metacromion; c, coracoid;^, glenoid fossa ; pi, ossified post-inferior angle. 

 Fig. 14. Left femur, from the front : f greater, /' lesser, and f third trochanter. 

 rig. 45. Inner border of same thigh bone : A, head. 



% 46. Front aspect of the left tibia {T) and fibula (F) ; ep, lower epiphysis. 

 ^\ 47. Their united inferior articular surface, L e. part of ankle-joint. This and last nat. size. 

 % 48. A foreshortened view of the hinder end of the left lower jaw. 



cr, coronoid process ; cd^ condyle ; «, angle of mandible. 



^g- 49. Inferior base of the skull of the Three-banded Armadillo [Tolypeutes comrus) . 

 '^g- 50. Skull and inferior maxilla in profile. 



