1206 Bulletin ^7, United States National Museum, 



Cenlroprisiis macropoma, GCnther, Proc. Zool. Soc. London, 1864, 145, Panama; Gunther, 



Fishes Central America, 409, pi. lxv, 1869. 

 Diplectrimi macropoma, Jordan & Bollman, Proc. U. S. Nat. Mus., 1889, 157; Jordan k Eiqen- 



MANN,?. c, 398, 1890. 



1593. DIPLECTRUM EUBTPLECTKUM, Jordan & Bollman. 



Head (to end of opercular spine) 2| to 2| ; depth 3? to 3^. D. X, 12; 

 A. Ill, 8 ; scales 8-50 to 55-18. Body moderately elongate, heavy through 

 shoulders; the back not much elevated; anterior profile convex, nearly 

 straight above eyes ; mouth large, maxillary reaching posterior border of 

 eye, 2 in head ; snout blunt, 3f in head ; eye large, slightly shorter than 

 snout, 4 in head. Interorbital space appearing slightly concave, 1| in eye. 

 Teeth as in D. radiale. Preopercular process very wide, its width 1 J times 

 diameter of eye; spines long and slender, 15 to 20 developed; the lower 

 angle not so strongly jirojecting as in D. macroiioma. Opercular spine 

 rather sharp, embedded. Opercular dap long and well rounded at the end ; 

 upper end of preopercle midway between tip of snout and opercular flap. 

 Gill rakers rather long, stout as In other species, x + 12. Scales small, 

 rather firm, smaller than in other species, 8 or 9 rows on cheeks ; scales 

 on opercle smaller than in D. radiale or D. macropoma, about 12 scales 

 before dorsal. Dorsal spines weak, pungent, second 1^ in third, fourth 

 and fifth almost equal, 3i in head; first soft ray 3 in head, shorter than next 

 the last ; upper lobe of caudal longest, Ij to 1? in head, lower lobe 1? to If 

 in head ; first anal spine 1^ in second, which is strongest and li in third, 

 latter 5 in head; soft rays showing a convex margin, the longest 3'j in head ; 

 pectorals broad, their posterior margin truncate-concave, their length If 

 in head; ventralslf in head. Color brownish above, as in D. radiale, become 

 ingmore yellowish and silvery below; sides with about 5 pairs of interrupted 

 black bars ; a large black blotch at base of caudal ; markings on preorbi- 

 tal and cheeks rather indistinct ; a large black spot above preopercular 

 angle on opercle ; lips bluish; spinous dorsal dusky above ; a small pale 

 spot under tip of spines ; soft dorsal plain olive, dark at base; inner rays 

 of caudal tipped with dusky, a few lower rays pale ; pectoral and anal 

 pale; ventrals dusky. This species is known from numerous specimens 

 dredged by the Albatross at stations 2795 and 2797, southwest of Panama, 

 at a depth of 33 fathoms, and at station 2805 at a depth of 51^ fathoms. 

 The largest of these is about 7 inches long. This species and the preced- 

 ing, of which we have examined many specimens, are well distinguished 

 from Dii)lectrum radiale, with which Dr. Boulenger has united them. I)i- 

 pleetrum macro2)oma is in appearance, coloration, and in habit intermediate 

 between the other two, but the characters of all are well marked, (f ipi'f ' 

 wide; ivTiTjKTpov, s-pur.) 



Dipleclrnm furiipleclrmn , Jordan & Bollman, Proc. U. S. Nat. Mus., 1889, 157, Pacific Ocean, 

 off coast of Colombia, from 8'= 06' 30" N., 78° 51' W., and 7° 57' N., 78° 55' W., 7° 

 56' N., 79° 41' 30" W., stations 2797, 2795, 2805. (Type, No. 41141. Coll. Alliatross.) 



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