414 APPENDIX. 



fins entirely covered with small scales ; ventral fin 

 with a basal scale ; pectoral as long as the head. 



Dorsal 4, 1, 9 ; anal 2, 9 ; pectoral 18 ; ventral 6. 

 Inhabits the Ganges. 



The descriptions of the Indian mullets in the Hist- Nat. des Poissons, 

 are not sufficiently precise to enable me to determine whether this is 

 among them. I have therefore considered it a new species, remarkable for 

 the second dorsal, the anal, and the caudal fins being thickly, and almost 

 entirely, covered with very .small scales. The shape is fuciform, and very 

 like that of Hamilton's M. corsula,irom. which it differs, at first sight, by 

 possessing a long lance-shaped scale at the base of the ventral fins : the pec- 

 toral fins are quite as long as the head, but in corsula they are shorter ; 

 and nothing is said regarding the latter having the posterior fins covered 

 with scales. In ours; again, the ventral fin is so' much in advance of the 

 second dorsal, that the hinder base of the former is in a line with the 

 middle of the latter. There are differences likewise in the number of the 

 fin rays. In the present species I counted ten rays in the second dorsal, of 

 which one was spinous, two simple, and seven branched : the anal fin had 

 eleven ; viz. two spinous, two simple, and seven branched. The specimen 

 measured about 7^ inches long, and was brought from the Ganges by my 

 friend E. Cotton, surgeon of the 14th regiment of foot. 



BATRACHUS rubigenis. 



Yellowish brown, marbled with blackish brown on the 

 head, body, and fins ; a reddish spot on the cheeks ; 

 two pahnated cirri over the eyes, and numerous others 

 on the head and lateral line ; operculum with three 

 prickles on each side. 



Inhabits the shores of Pernambuco, Brazil. Length 4| inches, 



Body destitute of visible scales, compressed ; head depressed ; eyes 

 small, approximate, and near the snout ; over each is a moderate-sized pal- 

 mated cirrus, finely ciliated at the margin ; and numerous others, much 

 smaller, are scattered over the head, edges of the operculum, and margin 

 of the lips, these latter being rather larger; those on the crown are very 

 short, generally in pairs, and arranged longitudinally ; teeth, in both jaws, 

 in a single row, small, irregular, unequal, very obtuse, and almost rounded, 

 except at the tip of the lower jaw, where they are sharp and incurved ; 

 tongue and palate quite smooth ; the former is short, bony, and connected 

 as far as the tip ; mouth wide ; lips and cheeks fleshy ; lower jaw longest ; 

 nostrils very small, nearest the eyes ; head, operculum, and all the fins 

 enveloped by the common skin of the body, and this renders the fins so 

 thick, that it is impossible to count their rays. The hinder plate of the 

 gill-covers is small, being armed with three sharp and rather strong spines, 

 which are in a manner concealed, being almost covered with the common 

 skin ; lateral line commencing at the hind part of the crown, and continued, 

 in a waved line, near the back, to the caudal : it is composed of white dots, 

 which are each furnished with minutecirri ; dorsalfin single, of nearly equal 

 breadth throughout, commencing behind the pectoral, and ending close to 

 the caudal ; ventrals thick, short, pointed, of two rays ; anal behind the 

 dorsal, but ending with it, and of nearly equal breadth ; caudal small, 

 rounded ; pectorals rounded, reaching to the vent, which is central. In 

 colour, the whole fish is marbled with brownish black, in transverse clouds. 



