456 THE ZOOLOGIST. 



CoRis juLis. Eainbow Wrass (Couch). Fig. 4 (p. 454). 



This is a small fish, even when full-grown ; it has the samt 

 conical teeth in the upper pharyngeals as described above, with 

 more rounded ones as they get towards the back of the mouth. 

 In the lower pharyngeal teeth there is one big one with a round 

 summit in the centre at the back, with small rounded ones at 

 each side. Along the promontory the teeth are more conical, 

 the two at the apex . standing well up, and are sharp. The 

 food of this fish consists of molluscs, both bivalves and single 

 shell echinoderms, and crustaceans. 



The Scaridce, or Parrot-wrasses, closely allied to the Lahridm, 

 are furnished with pavement-like teeth for the lower pharyngeals 

 set in a concave shape. The upper pharyngeal teeth are set on 

 a convex surface working on to the lower set. A specimen of 

 these upper and lower pharyngeals of a Scarus are to be seen in 

 the Fish Koom of the British Museum of Natural History at 

 South Kensington. 



(To be continued.) 



