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INDIANA UNIVERSITY STUDIES 



rest of the specimens. lu the types of notropoidcs it is forward an 1 

 medial, in the rest it is mostly forward, apitroaching the condition in 

 caucauus. Maxillary with !-:> teeth: mandible with fonr te'eth. of which 

 one is qnite small, lateral. 

 Gill-rakers about G+IO. 



Scales of the sides forming a sheath at the anterior part of the anal. 

 Base of caudal lobes scaled ; a large axillary scale ; lateral pores simple. 



. Origin of dorsal in front of middle, its highest ray reaching to near 

 end of last ; anal emarginate. the highest rays not reaching tip of last ; 

 ventrals reaching to or not quite tn the anal ; pectoral to or not quite 

 to the Yentrals. 



A silvery lateral band ; a humeral bar. 



Creagrutus magdalenae sp. nov. 



Tn^e CM. 4880, 78 m]n. Girardot. ♦ 

 Paratypes, over 1€0. largest 83 mm. Girardot. CM. 4881 a-o ; I.U M, 

 12722 a-o. 



ParatyiJes, 15. Honda. CM. 48S4 a-g; I.U.M. 12725 a-h. 

 Paratypes, largest 54 mm. I'ehas Blancas. C M. 4S85 a-i ; I.U.M. 

 12726 a-h. 



Here should probably also be placed CM. 4883 a-j ; I.U.M. 12724. 

 Over 100. Apulo. 



Head 4; depth 2.75-3.25 (rarely in small ones 3.5) ; D. 10; A. usually 

 12 or 13. occasionally 11, rarely 10 or 14; scales 4-33 to 36-3. Depth 

 of caudal peduncle 1.6-2 in the head, 1.5-1.7 in its length. Eye equals 

 snout, 3.5 in head. 1.25 in interorbital in largest, .6 in snout, 2.5 in head, 

 .8 in interorbital in a small one. 



Adult greatly compressed, subrhomboidal ; preveutral area broad, 

 postventral bluntly keeled : predorsal area with 9' or 10 scales. Frontal 

 fontanel much smaller than parietal ; angle of second suborbital an orbital 

 diameter from eye in the adult, slightly narrower in the smaller, naked 

 strip behind the second suborbital a)>out one-third as wide as the sub- 

 oi'bital. -Nlaxillary-premaxillary border a simple curve, slightly longer 

 than the eye, the horizontal part of the premaxillary about as long as the 

 maxillary; two or three teeth on the maxillary; mandible with three large 

 teeth, and one or two small ones on the sides. 

 _^Gill-rakers about 6+10. 



Scales on the sides forming a sheath for the anterior part of the 

 anal ; caudal lobes scaled for about one-third of their length. Lateral 

 line tubes and pores simple; dorsal slightly emarginate, its highest ray 

 reaching near tip of last, its origin considerably in advance of the mid- 

 dle ; anal short, emarginate, its highest ray reaching to or nearly to the 

 tip of the last, its origin equidistant from end of lateral line and opercle. 

 Ventrals reaching to or nearly to the anal, pectoral to or nearly to the 

 ventrals. 



A silvery lateral band, a dark humeral bar ; back dusky. 



