178 
All the figures were drawn with an Abbe camera from dead or preserved speci- — 
mens. 
Fig. 
9-10. 
11. 
Fig. 1. 
CON AMIR WL 
—_ 
S 
FISHES OF SAN DIEGO——EIGENMANN. 
PLATE XVI. 
Figs. 1-3. Sebastodes auriculatus. 
. An embryo some time before hatching, showing the large yellow oil sphere. 
. A larva shortly before hatching. 
. A larva just hatched. 
Figs. 4-7. Sebastodes ruber. 
. A larva shortly after hatching. 
. A larva shortly before hatching in different positions from the same ovary 
as Fig. 4. ; : 
Figs. 8-10. Fierasfer dubius. 
A larva just hatched and still inclosed in the viscid mass; the vesicle sur- — 
rounding the head may be an artificial condition caused by imperfect 
preservation. 
An embryo in two different positions. 
Fig. 11. Sebastodes ovalis. 
An embryo of October 15. 
PLATE XVII. 3 
Figs. 1-15. Oligocotius analis. 
The germinal disk ten hours after fertilization. x 50. Probably an unseg- 
menting egg, since the germ is well constricted off from the yolk. 
. The same, seen from above. 
? 
. The two cells of another egg at the same time. X 50. 
The egg represented in Fig. 3 seen in profile. X 50. 
The four cells of another egg at the same time. X 50. 
Another egg with eight cells after ten hours. X 50. 
The same egg seen in profile. 
. The beginning of two-cell layers after sixteen hours xX 50. 
. Anembryo after eighty-four hours. Xx 50; showing how the zona-radiata 
is appressed by contact with another egg. 
. An embryo after five days. 
11. 
. Front view of an embryo seventeen days old. 
. Dorsal view of an embryo on the eighteenth day. 
. Dorsal view of a larva twelve hours after hatching. 
. A larva two days after hatching. 
An embryo eight days old. 
Figs. 16-20. Isesthes gilberti. 
. An egg shortly after extrusion, the shaded portion representing the salmon- 
colored yolk ‘‘y”; the black bodies represent the purple oil-spheres; the 
white bodies the yellow oil-spheres and the central shaded circle the 
opaque white globule. The germinal disk ‘‘g” is almost completely 
hidden by the cushion of filaments ‘‘f.” 
. Two cells. 
. Eight cells seen through the cushion. 
. A larva one hundred and thirty-two hours old, the outline of a few of the 
yolk spheres in the center. 
20. An embryo of the eighth day showing the circulation of the left side. 
PRATER Sov Ed. 
. The youngest Typhlogobius seen. Zeiss A and 2, 
. The head of an older one from the side. 
. The head of one similar to Fig. 3. seen from below. 
. Another larva forty-eight hours older than Fig. 1. The oldest one seen. It 
is still inclosed in its club-shaped zona, 
