eigenmann: the cheirodontin^. 89 



ten to twelve scales in a series which is regular, except at about the sixth scale from 

 the occipital process; occipital process about one-sixth in the distance to the dorsal; 

 bordered by two or three scales; frontal fontanel a little longer than wide, a little 

 more than twice the length of the parietal; maxillary reaching to below anterior 

 margin of eye; teeth as in C. pequira, premaxillary teeth in those examined ^, 

 ---, ^, ^; maxillary teeth ranging from one to four most frequently two and 

 two in San Francisco specimens, most frequently three and three in Jaguara and 

 Bebedouro specimens; mandible with about six graduate teeth and a few minute 

 ones on the side; third suborbital and lower postorbital leaving but a very narrow 

 naked strip behind them. Gill-rakers 6 or 7 + 11 or 12. 



Origin of dorsal about equidistant from tip of snout and the interneurals of 

 the caudal peduncle, distinctly behind the vertical, from the origin of the ventrals; 

 origin of anal under base of last dorsal ray. Dorsal rays of male not prolonged; 

 height of dorsal a little greater than length of head; base of anal a trifle longer 

 than height of dorsal; the first five or six fully developed anal rays of the male 

 broad, with hooks; the ventral profile from origin of anal to caudal concave; 

 ventrals usually just reaching anal in male; pectorals just reaching ventrals, these 

 fins a little shorter in the female; ventral rays of the male with some hooks below. 



Scales thin, regularly imbricate with a few widely divergent radial strise. 

 Caudal naked; anal with a very rudimentary sheath at the base of the anterior rays. 



Lateral line complete, except in one specimen from Sete Lagoas and in nine 

 specimens from Jaguara, in which the pores were: 



Left. Right. 



4-3-3-2-1-23 4^3-3-3-lr-3-i|-l-4-8 



36 34-2 

 10-3-1-1-1-6-12-2 14-5-1-3-9 



37 4-2-29-2 

 10-2-6-3-4^6-5-? 13-2-3-1-1-2-3-1-8-2 

 30-2-1-2-1 4-5-5-6-5-2-9-? 

 16-2-17 34+(?) 

 2-21-5-3-3-2 7-5-7-2-15 



? (10-2^)-2-13 7 3-5-4-17-1 



8-3-2-2-3-1-10-4-4 5-3-6-1-1-1-1-1-13-1-3 



The heavy-faced figures indicate scales with pores. It is seen that many 

 sorts of breaks occur. The pores may not be developed in front, at the end, or at 

 any point along the lateral line, and at different points on the two sides. 



