in the Fish Gallery of the Indian Museum. 47 



Andaman Sea and Bay of Bengal, at considerable 

 depths. In form it much resembles a Herring, a resem- 

 blance that is further increased by the presence of a 

 perfect pneumatic duct. 



Genus 5. Melamphaes. This is a curious form, which 

 is found only in very deep water. One species occurs 

 in the Bay of Bengal at a depth of over 1,300 fathoms. 



Genus 6. Polymixia. The single species of this genus 

 bears a considerable resemblance to the Red Mullets, 

 since it has a pair of strong fleshy barbels. P. nobilis 

 has almost the same wide range as Hoplostethus medi- 

 terraneum y but has not been found in the Mediterranean 

 Sea. 



Genera 7 and 8, Myripristis and Holocentrum, are both 

 shallow-water fishes, and are common enough to be used 

 as food. 



Family X. Kuvtldce [Case 53]. 



This is a very small family of small marine Acantho- 

 pterygian fishes which have a thin body, one short dorsal 

 fin and a long anal fin. 



Two genera, Kurtus and Pempheris, are known, and 

 they are only found in the Indian Ocean and Tropical 

 parts of the Pacific. 



Family XL Polyncmidce [Case 53]. 



A small family of marine and estuarine fishes of much 

 economic value. 



Polyncmus paradiseus, the Topsi or Mango fish, may 

 be taken as the type. In this fish there are two short 

 dorsal fins, remote from one another, and some of the 

 lower rays of the pectoral fins are isolated and prolonged 

 into independent tactile filaments of great length. The 

 " Topsi," although a marine fish, is seldom found far 



