252 PROCEEDINGS OF THE ACADEMY OF 



CRENICICHLA ANTHUEUS, Cope, sp. nov. 



A slender species, with brightly colored fins. Depth six times 

 in total length, or 5.3 times in length without caudal fin. Length 

 of head 3.66 in total length, five and two-third times more than 

 the diameter of the orbit. Orbit 1.1 times in muzzle, 1.6 times in 

 interorbital width, which is flat. Scales 4|— 36-1-13, but, as those 

 of the lateral line are placed at intervals, the true number of 

 transverse series of scales is 62.3; scales of cheek in nine series. 

 Fin radii, D.xix-13; A. iii-9. Caudal cuueate rounded; pectoral 

 and ventral coequal, not extending half-way to anal. Twelfth 

 dorsal spine equalling from end of chin to orbit. Some rays of 

 soft dorsal and anal prolonged, the former to near end of caudal, 

 the latter to base. 



Color leaden-brown above, fading into yellowish below. Dorsal 

 and anal fins deep rose, with a few round small spots of pale 

 rose on the soft portions, which become white in spirits. Caudal 

 fin deep crimson, fading to purple at base, with a longitudinal 

 dark shade in the centre, and series of small oval pink spots, one 

 between each pair of rays. A black spot edged with white at the 

 base above the lateral line, and a larger black spot, white-edged, 

 crossing the lateral line opposite the third, fourth, and fifth dorsal 

 spines. 



Total length .215 m.; to basis dorsal (axial) .055 m.; to basis 

 of anal .121. 



This perch appears to be similar to the C. lacustris of Castel- 

 nau in proportions, but the coloration is very different. I have 

 three specimens from the Ambj'iacu. It is less slender than the 

 G. lucius, Cope,' and has a considerabl}^ wider skull. 



CRENICICHLA PROTEUS, Cope, sp. nov. 



This species is represented bj^ numerous specimens, which vary 

 in many respects from an average standard, constituting several 

 varieties, one of which may turn out to be a species. The tjpi- 

 cal or most numerous form may be thus described : — 



Radii D. xix-13; A. iii. 8 or 9. Depth of body from four to 

 four and a half times in length without caudal fin. Head 3 

 times in same, orbit 5 times in head, 1.25 times in muzzle, and 



' Proceed. Amer. Philos. Soc, 1870, 570. 



[January 16, 



