RITTER, — Eyes of Typhlogobius calif, 
14. 
16. 
PLATE II. 
Meridional vertical section of an eye from a specimen about 50 mm. long. 
X 150. The fold in the pigment layer of the retina is indicated at *, 
(See text, p. 63.) 
Meridional section of an eye without a lens. Specimen 63 mm. long. 
x 88. 
The section, not quite meridional, is from the same eye from which 
Figure 6 is taken, and is given to show the pigment mass (pig.”) in 
the place of the lens. Consequently only the pigmented portion of the 
eye is drawn. X 115. 
A dissected acetic-acid glycerine preparation to show the eye muscles 
and optic nerve. X 60. 
Section of the integument from the dorsum of the head perpendicular 
to the surface, from an individual 19 mm. long. X 450. 
Section similar to the one shown in the preceding figure, but from an indi- 
vidual 72 mm. long. X 450. 
Preparation similar to the one shown in Figure 4 (Plate 1.), but from the 
side of the body. X 63. 
Section, not quite meridional, from an individual 60 mm. long. X 115. 
The pigmented portion of the retina and choroid, from the same eye. 
x 230. The fold in the pigment layer of the retina is indicated at *, 
(See text, p. 68.) 
A small portion of the pigment layer of the retina, and the choroid gland 
with the optic nerve passing through it. Specimen 63 mm. long. 
800. 
A small portion of the retina, showing the optic nerve passing through it. 
Same eye as that shown in the preceding figure. X 800. 
The iris and the adjacent parts; same eye as that shown in Figure 5. 
x 350, 
