LAMPREYS AND FISHES Of INDIANA. 187 



Lagochila. lacera Jordau and Braytou. 

 Hare-lip Sucker. 



Jordan, 1884, IS, 614; Quamlalna lacera. Jordau and Gilbert, 1882, 



S, 144 



Moderately elongated, the body heavy in front of the dorsal. The pro- 

 file frouj the dorsal forms a regular and rapid curve to the upper lip. 

 The lower outliue from the m )uth back is nearly straight. Mouth ex- 

 tremely modified. The upper lip is broad and fleshy, not separate from 

 the skin of the forehead by a crease. At each side of the mouth a sharp 

 fold of the skin is formed which descends to the middle line below, but 

 is separated from that of the other side by a longitudinal crease. These 

 folds pass under the lower jaw. In front of them the fleshy lower lip is 

 split into two large depending L>bes. Lower ^ide of the head flat and 

 broad. Eye in head nearly four and a halt times. Depth in the length 

 four to four and two-thirds times ; head in length four and one-half times ; 

 Dorsal rays, twelve; anal, seven ; the anal rays long. , Caudual deeply 

 forked. Pectorals falcate. Scales, 6-45-5. Color silvery above, with a 

 tiuge of olive; bright silvery below. Dorsal fin dusky; anal mostly 

 white. Length about eighteen inches. 



Tennessee and Arkansas northward. It has been recorded as havmg 

 been taken by Dr. B. W. Evermann, in the Tippecanoe River, in Car- 

 roll County (23, '88, 45). It will doubtless be found to occur in most 

 of the streams of the State, 



Little is known concerning the habits of this singular species. It is 

 said to spawn in May. Its teeth closely resembles those of the common 

 red-horse, and its food is probably similar in nature. 



Genus CATOSTOMUS LeSueur. 



Form of body various. Foutanelle present in upper surface of head. 

 Air-bladder in two parts. Dorsal fio with not more than eighteen rays. 

 Mouth small to moderate, usually inferior in position. Pharyngeal bones 

 weak, the teeth compressed, comb-hke. Lateral line developed or not. 

 A genus containing a large number of species. As here defined, it 

 includes Dr. Jordan's genera Erimyzon and Mimjtrema, since the characters 

 on which those genera are based, the absence or partial development of 

 the lateral line do not appear to me to be of generic value. 

 A. Scales more than sixty in the lateral line ; much crowded together 

 in front, 

 a. Scales along lateral line about one hundred. 



catostomus, p. 188. 



aa. Scales along the lateral line about sixty-five. teres, p. 189. 



