of head with numerous small, granular plates; tip oí* 
snout with a small naked area; lips papillose except 
next to the moutli ; the papillae becoming smaller toward 
the margin; maxillary barbei minate or reduced to a 
notch in the lips. 
Dorsal spine equal to snout, the dorsal rounded. 
Lower fins rounded, the pec forais extending for half 
their length beyond the ventrals, ventrals to anal; anal 
ray little shorter than snout; caudal emarginate, the 
lobes rounded. 
Uniform dusky. 
Allied to P. (. Rhinelepis ) parahybce. 
Type : One specimen, GO mm. long. from Piquete 
(Lorena), State of S. Paulo.* 
Otoeinelus (IViicrolepidogaster) tietensls n. sp . 
D. I, 7; A. I, •; Lat. L. 29; head 4 in the length; 
depth 7 %. 
Elongate and slender, tail behind anal rectangular ; 
the dorsal and ventral surfaces Üat; body irregular 
seven sided in cross-seetion at the ventrals; head with 
sloping cheeks, the orbital ridge prominent, interor- 
bital somewhat depressed, fiatish, a median ridge from 
between nares forward; margin of snout granular; lower 
surface of head naked except an angle projecting in 
trom the interopercle. Lips well developped, strongly pa¬ 
pillose, the papillae nearest the mouth largest; barbeis 
minute and distinct; entire breast and belly with isola- 
ted granular plates; anal area naked; 3 azygous plates 
in front of anal; occipital with a short, narrow crest; 
about 3 plates between the occipital and dorsal; all 
plates hispid ; distance of origin of dorsal from tip of 
