202 Mr. A. Alcock on the Bnthyhial Fishes 



was poft and air 

 inch in its niajo 

 eiglitli anal ray 



was soft and almost coriaceous, and measured a quarter of an 

 inch in its major diameter. The pectoral fins reach to the 



Family CarangidaB. 

 Bathyseriola, gen. nov. 



Body oblong and compressed, covered with small deciduous 

 cycloid scales. Lateral line apparently unarmed. First 

 dorsal fin continuous, with rather feeble spines ; the second 

 and the anal much more developed and without finlets. Anal 

 spines approximated to and continuous with the rest of the 

 fin. Ventral with a continuous membranous attachment to 

 the abdomen. Cleft of mouth narrow ; villiform teeth in tlie 

 jaws only. Preopercular border entire. Seven branchio- 

 stegals. Pseudobranchiffi. Pyloric appendages numerous. 

 No air-bladder. Vertebrse 10/14. 



5. Bathyseriola cyanea^ sp. n. 

 All the tissues fragile. 



B. 7. D. 8-9/24-25. A. 3/22. P. 22. V. 1/5. 



Body oblong and compressed ; its height about 3^ in the 

 total and one ninth less than the length of the head. 



Head compressed and thin in its lower, broad and heavy in 

 its u]')])er half ; its muciferous cavities well developed. Snout 

 rounded, a little inflated at the tip, the jaws equal in front ; 

 its length, which is hardly equal to its greatest breadth, is 

 equal to the diameter of the eye. Eyes circular, their dia- 

 meter not quite one fourth of the length of the head ; they are 

 encircled by a sharp-edged adipose fold, widest fore and aft ; 

 intcrorbital space wider than the eye, convex from side to side. 

 Nostrils large, situated almost superiorly at the tip of the 

 snout. Cleft of mouth narrow, the maxillary hardly reaching 

 the vertical through the middle of the eye ; jaw-bones weak, 

 with a trenchant edge, which bears a narrow band of villiform 

 teeth ; tongue large and fleshy ; buccal folds very broad. 

 Gill-cleft wide ; gill-nienibranes united anteriorly ; gill-covers 

 with thin, almost membranous, bones, the operculum with 

 two diverging weak stays above, the preoperculura bulging 

 backwards as a large, striated, entire lobe ; gill-laraince 

 broad, gill-rakers on the first arch long, close-set, acute ; 

 ]iscudobranchia^ fleshy. The mucosa of the whole oro-branchial 

 cavity black. 



