NO. lO FISHES FROM PERU HILDEBRAND AND BARTON 21 



vertical fins completely, and extending more or less on the rays of 

 the paired fins ; dorsal fin very long, its origin a little in advance of 

 margin of opercle, its spines rather short, slightly graduated, the third 

 2.3 in head, the soft part with a produced lobe about twice as long 

 as head ; caudal round, about as long as head ; anal with 3 graduated 

 spines, the soft part similar to that of dorsal ; ventral fin long, the 2 

 outer rays filamentous, the longest filament reaching origin of anal, 

 about 3.0 in length, its spine slender, 1.45 in head; pectoral broad, 

 with slightly convex margin, about as long as head. 



Color satin-black; a white vertical bar under sixth dorsal spine, 

 about as broad as eye, ending under tips of middle rays of pectoral ; 

 caudal, ventrals and pectorals and distal parts of lobes of dorsal and 

 anal pale ; the margin of the caudal black. 



This species, which is new to the fauna of Peru, is represented in 

 the collection by one fine specimen, 220 mm. in total length. 



Range. — Previously known from Acapulco, Mexico, to the Gala- 

 pagos Islands. Now for the first time reported from Peru from a 

 specimen caught off Talara, Peru. 



Family CALLIONYMIDAE: Dragonets 

 Genus SYNCHIROPUS Gill, i860 

 The single small specimen in the collection, which apparently rep- 

 resents a new species, seems to belong to the genus Synchiropus Gill, 

 as understood by at least some modern ichthyologists.* This genus 

 seems to be characterized by the broad, smooth body ; the absence of a 

 tentacle above the eye ; the single lateral line ; the superior gill open- 

 ing, with at least a slight free opercular flap in front of and below it ; 

 and by the two well-separated dorsal fins, with the rays in the second 

 fin divided in adult fish. 



SYNCHIROPUS TALARAE, new species 

 Figure 6 



Head 3.1 ; depth 9.3 ; D. IV, 9 ; A. 8 ; P. 24 ; V. 6. 



Body strongly depressed, broader than deep except at base of 

 caudal; head large, very strongly depressed, its depth only about half 

 its width, and 3.0 in its length; snout depressed, triangular, much 

 shorter than eye,- 4.7 in head; eye definitely more superior than lateral, 

 3.5; interorbital very narrow, slightly grooved, about 12 in eye; 



*I am indebted to Dr. Leonard P. Schultz, who has recently examined 

 many specimens of the family Callionymidae from many parts of the world to 

 determine generic and specific relationships, for suggesting that this Peruvian 

 species belongs to the genus Synchiropus. (S.F.H.) (See Schultz and Woods, 

 Journ. Washington Acad. Sci., vol. 38, No. 12, pp. 419-420, 1948.) 



