EEPORT ON THE SHORE FISHES. 13 



Otolithus guatucujoa, CY. Station 321; 13 fathoms. 



Micmpogon ornatus, n. sp. (PI. VII. fig. A). 



D. 9/^, A. f , L. lat. 63. The height of the body is one-third of the total length 

 (without caudal), the length of the head one-fourth. Dorsal profile very concave on 

 the neck. Diameter of the eye two-thirds of the length of the snout, two-elevenths 

 of that of the head, and rather more than one-half of the width of the interorbital 

 space. A series of small barbels from the interoperculum to the lower lip, where they 

 are most crowded. Prseoperculum without spines at the angle. Dorsal and anal spines 

 very feeble. Pectoral as long as the head. There are eight or nine scales in a transverse 

 series between the first dorsal and the lateral line. A large, round, black spot at the 

 origin of the lateral line. Body with six alternately broad and narrow blackish cross- 

 bands. Pectoral blackish along the middle. Length of specimen, 8f inches. Mouth of 

 the Eio de la Plata. Station 321 ; 13 fathoms. 



Microjjogon undulatus, L., Monte Video. 



Percophis brasilicmus, Q. and G. Station 322 ; 21 fathoms. 



PrioJiotus punctatus, Bl. Station 322; 21 fathoms. 



LcBmonema longijilis, n. sp. (PI. VII. fig. B). 



D. 5^5, A. 45. Head, and particularly the snout, depressed ; the latter -ndth the upper 

 jaw mxTch projecting, not quite twice as long as the eye, the diameter of which is nearly 

 one-sixth of the length of the head. The head is one-fourth of the total length (with- 

 out caudal). Cleft of the mouth rather wide, the maxillary not quite extending to 

 the hind margin of the eye. Teeth of the jaws in villiform bands ; vomer, Avith two 

 groups of teeth, separated in the middle by a toothless interspace. Barbel about as long 

 as the eye. Interorbital space wider than the eye. Operculum without spine. Scales 

 very small. Fins naked. The first dorsal commences above the root of the pectoral, and 

 is narrow and high, the third ray being prolonged into a long filament. The second 

 dorsal rather high, but lower than the body. Caudal roimded. Pectoral nearly as lono- 

 as the head, mthout snout. Ventral reduced to a bifid filament, the lower ray being 

 much longer than the upper, almost half as long as the body. Body brownish; the 

 dorsal filament, the outer margins of the vertical fins, and the long ventral filament 

 black. Length of specimen, 7^ inches. Mouth of the Rio do la Plata. Station 32] ; 

 13 fathoms. 



Aphoristia ornata, Lac. Station 321. 

 Arius commersoni, Lac, Monte Video. 

 EngravJis olkla, Gthr. Station 321. 



