408 
MR. W. K. PARKER OK THE SKELETOH 
Humber of 
Plate. 
Fig. 
times 
magnified. 
11 
1-11 
Adult Myxine glutinosa; first eleven of a series of 
transversely-vertical sections through cephalic region 
10 
55 
12 
The same ; fore part of supra-lingual cartilage ; upper 
view. 
18 
12 
1-6 
Adult Myxine glutinosa ; twelfth to seventeenth of the 
series of vertically-transverse sections. 
10 
55 
7 
The same ; lingual and supra-lingual skeleton, with 
the teeth in situ ; upper view. 
5 
5 5 
8 
The same ; supra-lingual framework ; upper view . 
5 
13 
1-6 
Adult Myxine glutinosa ; eighteenth to twenty-third 
of the vertically-transverse sections. 
10 
55 
7 
The same ; cephalic region, with lower part of face and 
throat removed ; lower view. 
2,1 
" 2 
55 
8 
Adult Bdellostorna Forsteri feet long) ; branchial 
region ; lower view. 
f natural size 
14 
1-7 
Adult Myxine glutinosa; twenty-fourth to thirtieth of 
the vertically-transverse sections. 
10 
55 
8 
Adult Petromyzon jluviatilis ; lower velum, and fore 
part of branchial region ; upper view. 
7* 
J5 
9 
Adult Petromyzon jluviatilis; tongue, with anterior 
and supra-lingual teeth. 
H 
55 
10 
The same ; vertical section showing supra-lingual and 
fore part of basi-hyal cartilages. 
H 
15 
1-4 
Adult Myxine glutinosa ; thirty-first to thirty-fourth 
of the vertically-transverse sections. 
10 
55 
5 
Bdellostorna Forsteri (1^ foot long); from snout to 
cardiac region ; lower view. 
f natural size 
55 
6 
Adult Myxine glutinosa; hind part of visceral arches 
forming 1 framework of “ velum;” lower view . 
9 
5 5 
7 
The same ; fore part of 1st pharyngo-branchial . 
9 
5 5 
8 
Adult Petromyzon jluviatilis; vertical section of fore 
part of branchial region to the left of mid line. 
4 
55 
9 
The same ; another similar section at mid line 
4 
