THE SHORE FISHES OF PERU 495 



photophores; no scales; 2 dorsal spines; second dorsal and anal very 

 long, each with about 30 to 34 rays; caudal free from dorsal and anal; 

 pectoral long, more or less pointed, without foramen in axil. 

 A single species has been assigned to this genus. 



APHOS POROSUS (Cuvier and Valenciennes) 



Figure 94 



Batrachus porosus Cuvier and Valenciennes, 1837, p. 506, Valparaiso, Chile 



(original description). 

 Porichthys afuerae Evermann and Radcliffe, 1917, p. 152, pi. 14, fig. 1, Lobos 



de Af uera, Peru (original description) . 

 Aphos porosus Hubbs and Schultz, 1939, p. 477, Peru and Chile (synonymy, P. 



afuerae Evermann and Radcliffe included; discussion). 



Head 2.9 to 3.7; depth 5.2 to 6.2; D. 11-31 to 33; A. 30 to 32; P. 

 19 or 20. 



Body rather elongate, broader than deep at base of pectorals, 

 strongly compressed posteriorly; head low, depressed, notably broader 

 than deep, its anterior margin broadly convex; caudal peduncle 

 slender, 5.5 to 8.0 in head; snout broad, 4.5 to 7.3; eye small, lateral 

 in young, partly superior in adult, 5.4 to 6.4; interorbital flat, 3.7 





Figure 94. — Aphos porosus (Cuvier and Valenciennes). From the type of Porichthys 

 afuerae Evermann and Radcliffe, 126 mm. long, Lobos de Afuera Island, Peru (U.S.N.M. 

 No. 77552). (After Evermann and Radcliffe, 1917.) 



to 7.4; mouth strongly oblique; lower jaw projecting, extending into 

 dorsal profile; maxillary reaching nearly or quite under posterior 

 margin of eye, 1.9 to 2.5 in head; teeth pointed, those of upper jaw 

 very small, in a single series, those of lower jaw larger, especially 

 laterally, indefinitely in two series anteriorly, laterally in a single 

 series; teeth on vomer consisting of a pair of canines on each side, 

 the outer one rather large; teeth on palatines unequal in size, in an 

 irregular series; anterior nostril near median line of snout, with a 

 short tube extending across premaxillary groove, the posterior one 

 without a tube, situated in front of eye, on margin of premaxillary 

 groove; four rows of pores on anterior part of body, the uppermost 

 one extending from occiput to and along base of dorsal, the next one 



