1908-9. ] THE HABITS OF PLETHODON CINEREUS ERYTHRONOTUS. 493 
LLLUSTRABIONS: 
Figures 1 and 9 are camera lucida drawings, 2 and 3 from photographs, 4-8 and 
10-14 from projections by Zeiss epidiascope. Figures 4-8 are enlarged to the same 
extent, which is twice as great as that of figures 10-14. Figures 4 and 5 from eggs of 
maximum size, 6 and 7 from eggs of minimum size. The outlines of the feet, Figs. 10, 
12 and 13, are camera lucida drawings; they are right feet viewed from the dorsal sur- 
face under low magnification. 
Figure 1. Horizontal section of tail through the proximal wound of an autotomy. 
v—centrum of vertebra. 
a—perivertebral adipose tissue. 
m—myotome. 
c. t.—connective tissue. 
s—skin. 
Figure 2. Cluster of eggs suspended in a large crack in a decaying log. 
Figure 3. Cluster of eggs. 
Figure 4 Stage 3mm. Egg viewed from side, the dotted line being the equator 
of the egg when the latter is in its natural position. 
Figure 5. Stage5 mm Egg viewed from above. 
Figure 6. Stage5.5mm. Egg viewed from the side. The outline of the mucous 
sphere was added from a living specimen 
Figure 7 Stage6mm Egg viewed from above. 
Figure 8. Stage 9 mm. Viewed from above, the head and tip of the tail are 
much bent towards the ventral surface. 
Figure 9. Vitelline circulation in larva 10 mm. long. 
a—anterior 
Figures ro and 11. Stage 12 mm. 
Figur- 12. Stage 16 mm. ‘Taken from a small larva, actual size, 14.5 mm. 
Figure 13. Stage 20-25 mm _ Actual size of larva 20 mm. 
Figure 14 Specimen from the centre of the same bunch of eggs as that of Figure 
13, which is one of the outer larve : 
