RHINOBATUS (SYRRHINA) ANNULATUS. 



oval form. Dorsal fins rather small, placed far back on the body, and each 

 truncated behind. Ventral fins small, the hinder and outer edge prolonged. 

 Caudal fin somewhat oval, or imperfectly diamond-shaped, the upper part 

 posteriorly most prolonged. The spines in the course of the dorsal line are 

 very short, slender, obtuse, and scarcely visible in the fresh fish ; and the 

 skin, if stroked from the head, is smooth; if towards the head, rough. The 

 eye-like variegations are alike, as regards number and position, on both 

 sides. 



DIMENSIONS. 



Inch. Lin. 



Length from the tip of the nose to the 



point of the tail 39 



Distance between the tip of the nose 



and the eye 5 



between the tip of the nose and 

 the commencement of first 



dorsal fin 24 



between the first dorsal fin and 

 the commencement of the 

 second 5 







n 



Inch. Lin. 



Distance between the second dorsal fin and 

 the commencement of the 



caudal fin 2 6 



between the tip of the nose and 



the outer angle of the nostril 4 

 between the tip of the nose and 



the mouth 5 



Width of the mouth 2 



Greatest width of the body, including the 



pectoral fins 12 



10 



6 

 3 



6 



The length between the tip of the caudal fin and the anterior extremity of 

 the eye is nearly six and a half times that between the anterior extremity of 

 the eye and the point of the snout. 



The first specimen of this fish which I procured, was taken in a seine near the mouth of the 

 Cowie River, and I have seen others of the same species caught in Algoa Bay. It has not yet 

 been found to the westward of Cape Point, nor is it known to the fishermen of Simon's Town. 

 It is always found in situations where the bottom of the sea is level and sandy. 



