RITTER. — Eyes of Typhlogobius calif. 
PLATE I. 
View of the dorsal side of the head of an individual 19 mm. long, show- 
ing the distribution of the pigment cells, the folds of the skin, and the 
eyes. X 18, 
Similar view of an individual about 55 mm. long. X 21. 
An individual of the same size seen from the ventro-lateral side. X 2. 
Nitric-acid glycerine preparation of integument from the dorsum of the 
head of a specimen 72 mm. long, showing the blood-vessels and the 
pigment cells. — Surface view. X 59. 
