138 



THE ZOOLOGIST. 



rara) the position of the sagittae is well defined from the outside, 

 the bone under them being thin. They are large and inclined 

 at a sharp angle ; their pointed ends upward, and the other end, 



Fig. III. 



1. SCI^NA MACULATA. 2. S. AQUILA. 3. MlCROPOGON FURNIERI. 



4. Plagioscion surinamensis. 5. Otolithus maculatus. 



6. Nebris microps. 



which has two small projections, a curious example in sagittae, 

 downwards (fig. III., 6). (Shown reversed to bring out these 

 projections.) There is no defined lagena, the asterisci being 



