118 PROCEEDINGS OF THE ACADEMY OF """' [March, 



Gill-opening extending forward about opposite front margin of eye. 

 Rakers 5 + 13, pointed, longest about | of longest filaments which 

 are f of orbit. Pseudobranchise a trifle longer than longest raker. 

 Isthmus rounded. 



Scales small, and extending well out on most of fins, almost entirely 

 on dorsals and anals where they are greatly reduced and crowded. 

 Head naked except cheek and opercle. Lateral line damaged, convex 

 at least anteriorly. 



Dorsal apparently over middle of pectoral, spines graduated to last 

 which is longest though not as high as longest anterior rays. Anals 

 similar though origin of spinous well posterior, a little before end of 

 pectoral. Only first 7 or 8 rays of rayed dorsal and anal a little longer 

 than others. Caudal large, forked, and lobes rather broad. Pectoral 

 broad, its origin a little above lower rim of orbit. Anus placed nearly 

 opposite origin of spinous dorsal. 



Color in alcohol pale brown, mostly uniform, or the back only^a 

 trifle darker and marked with indistinct traces of numerous crowded 

 slightly darker or grayish spots. Fins pale brown, pectoral a trifle 

 darker. Iris dull brassy. 



Length 13f inches. 



Type No. 11,354, A. N. S. P. Rio Grande do Sul, Brazil. Mus. 

 Comp. Zool. Cambr., Mass. 



One example which does not agree with Gay's figure of Stromateus 

 maculatus? This is very poor, as no squamation whatever is indi- 

 cated, the fins are naked, also the head, there is no adipose eyelid, 

 opercle and preopercle without striae, and the spots are greenish- 

 golden, the lower ones brighter. The dorsal shows VI, 38, and the 

 anal III, 32. Jenyn's Chiloe example ^ had D. VII, 41, and A. V, 50, 

 and the one from Port St. Julien in Central Patagonia is possibly 

 identical with S. hrasiliensis. The original account of S. maculatus 

 by Valenciennes states that the spots are yellow. 



{Brasiliensis, of Brazil.) * 



PTERORHOMBUS subgen. nov. 



Type Fiatola fasciata Risso. 



Fiatola Risso, Hist. Nat. Eur. Merid., Ill, 1S26, p. 289 (fasciata). (Not of 

 Cuvier.) 



Small ventrals present. Strornateus fasciata (Risso) examined. 



2 Ail. Hist. Chile, Zool., 1854, "lam 3bis/' fig. i. 

 ' Zool. Voy. Beagle, IV, Fish, 1842, p. 74. 

 * Hist. Nat. Poiss., IX, 1833, p. 296. 



