3870. ] 569 [Cope. 



• 

 PSEUDOKHAMDIA PISCATKIX. Cope Sp. IIOV. 



Head above granular rugose, except between and in front of the pre- 

 frontals. Occipital process convex, not keeled, apex in contact with 

 basal dorsal shield ; its length exceeding a little its width at the base. 

 Head narrow, with narrow truncate muzzle and nearly equal jaws ; the 

 width at base of pectoral spines equal length to behind orbit. Orbit 3.3 

 times in length of head, equal interorbital width. Eadii D. I. 6, A. 12, 

 P. I. 9, V. 6, not reaching anal. Caudal deeply forked lobes subequal. 

 Beards very long ; the maxillary reaching to near the extremity of the 

 caudal fin, the external mentals to beyond the base of the pectorals, the 

 inner to beyond the middle of the pectorals. The pectoral spine is serrate 

 on both edges ; the dorsal on the posterior only. The longest ray of the 

 dorsal when depressed reaches the base of the adipose fin. The adipose 

 subtriangular, its base one-seventh the total length, without caudal fin. 

 Head to opercular opening 3.75 times in length to basis of caudal fin. 

 Length five inches. Pebas. 



Ehamdia ctakostigma. Cope sp. nov. 

 Eadii D. I. 6, the spine not thicker than the other rays, and weaker 

 than the pectoral ; A. 12, V. 6 ; P. I. 8 ; its spine minutely serrate within 

 and without. Top of the head smooth, or with a slight rugosity on the 

 postfrontal region. Head to operculum a little more than .2 of length 

 to basis of caudal fin ; length to basis of dorsal one-third of the same. 

 Depth of body 7.38 times in the same length ; length of adipose fin 3.33 

 times in the same. Depressed dorsal nut reaching adipose ; pectoral 

 reaching only .66 distance to ventrals ; latter reaching half way to anal. 

 Caudal fin very deeply furcate, lobes equal. The maxillary barbel reaches 

 to near the end of the adipose fin. Length four inches ; general form 

 slender. Color plumbeous ; head above blackish, with an iridescent blue 

 spot above the posterior margin of the orbit on each side. 

 From Pebas, Equador, Hauxwell's collection. 



This species is allied to the B. dorsalis Gill, from the same region, but 

 is a more slender fish, with more numerous anal radii and longer barbels. 

 CHEOMIDID^. 

 Crenicichla cyanonotus. Cope sp. nov. 

 D. xxiv. 11, A. III. 8 ; scales 5-66-13. Depth of body 6.25 times in 

 total length ; length of head a little more than four times in the same. 

 Orbit large, equal length of muzzle, 3.75 times in length of head, a little 

 less than interorbital width. The head is thus broad and short ; above 

 quite plane. Scales of body rather large, seven rows on the cheek. End 

 of maxillary marking anterior third of orbit. External teeth stronger. 

 The ends of the pectoral and ventral fins mark the thirteenth dorsal spine. 

 The longest dorsal spine equals the length of the premaxillary bone with 

 spine. Color olive, with seven indistinct brown cross-bands directed ob- 

 liquely backwards to the middle line of the side. A dark band from orbit 

 to axilla. A black, white(?) edged spot on the upper caudal radii. Dor- 

 sal and anal fins without spots, blue at the base. Length six inches. 

 From the upper Maraiion, near Pebas. John Hauxwell's collection. 



