PLATE 3 
EXPLANATION OF FIGURES 
43 Outline drawing of Tachyglossus hystrix, to show the location of the 
various spine and hair tracts. A, small spines of the auricular depression; B 
and 6’, curved spines and spiny hairs of the flanks; C and C’, curved spines and 
spiny hairs of the feet; D, caudal spines; HE, wavy hair of the auricular depression; 
F’, hip tufts of spines; G, large spines and hairs of the dorsum; H, short spines and 
spiny hairs of the head; J, long spiny and wavy hairs of the venter.  }. 
44 Arrangement of spines and hairs upon the dorsum and sides of Tachyglos- 
sus (after Romer). X }. 
45 Small wavy hair from the venter. X 
46 Long wavy hair from the venter. x 
47 Long spiny hair from the venter. x 
48 Long spiny hair from venter. X 
49 Curved spiny hair from fore flank.  X 4. 
50 Small spine from fore flank. ™ }. 
51 Small spine from near auricular depression. X 
52 Large spine from dorsum. X }. 
538 Large spine from hip tuft. 4. 
54 Largest of the spines from near the median line of the dorsum. A, pig- 
mented portion; B, unpigmented portion; C, isthmus; D to £, portion within the 
follicle (bulb). x 4. 
55 Largest of the spines from the hip tufts, or from the lateral caudal tufts. 
A, pigmented portion; B, unpigmented portion; C, isthmus; D to EH, portion 
within the follicle (bulb). > 4. 
56 Smaller, ‘black spine’ from near the median line of the dorsum, or fromthe 
median dorsal line of the tail. A, pigmented portion; B, unpigmented portion; 
C, isthmus; D to E, portion within follicle (bulb). x 4. 
57 Smallest of the spines of the body, unpigmented, and more acuminate than 
any of the others, from the sides of the body, top of the head, auricular depres- 
sion, or periphery of tail. £8, unpigmented portion; C, isthmus; D to E, portion 
within the follicle (bulb). X 3. 
58 Flattened, smewhat spiny hair, from near the median line of the dorsum. 
A, top of view; B, lateral view. X 1}. 
59 Slightly finer wavy hair from near the side of the body where the smaller 
spines begin to appear. A, top view; B, lateral view. (cir. nat. size.) 
60 Slender, pigmented spine, from lateral caudal tuft. A, pigmented portion; 
B, unpigmented portion; C, isthmus; D to EZ, portion within the follicle (bulb). 
x F. 
61 Slender, unpigmented spine, from lateral caudal tuft. B, unpigmented 
portion; C, isthmus; D to EF, portion within the follicle (bulb). X 3. 
62 Small spine from top or sides of head, or from the auricular depression. 
B, unpigmented portion; C, isthmus; D, portion within the follicle (bulb). x 2. 
63, 64, and 65 Forms of the spiny hairs of the head. C, isthmus; D, portion 
within the follicle (bulb).  X 23. 
66 Wavy hairs from beneath the spines and spiny hairs and from the auricular 
depression. D, portion within the follicle (bulb). (cir. nat. size.) 
67 Long spiny hairs, the longest on the body, from the venter. A, top view; 
B, lateral view; C, isthmus; D, portion within the follicle (bulb). (cir. nat. size.) 
68 Short spiny, somewhat wavy hairs, from the venter. A, top view; B, 
lateral view; C, isthmus; D, portion within the follicle (bulb). X 14, 
69 Long wavy hairs, the longest on the body from venter. 3. 
70 Guide figure. 
71 Tip of flattened spiny hair from near the median line of the dorsum, from 
A-B, figure 70. X 170. 
72 Section of the same hair between B-C, figure 70. M, medulla. X 120. 
73 Section of the same hair, between C-D, figure 70. M, medulla. X 120. 
492 
nin 
Cs SI hole 
die 
rile 
