224 REPORT OF STATE GEOLOGIST. 



HlODON 4LOSOIDES (Raf.). 



Hyodon alosoides, Jordan and Gilbert, 1882, 8, 259. 



Body deep and compressed, the lower outline more arched than the 

 upper. Depth in the length, three and one-half; the young slenderer. 

 The belly, both before and behind the ventrals, brought to a distinct 

 edge. Head, in length, four and one-half. Snout, short and rounded, 

 its length about a sixth of that of the head. Mouth large, the maxillary 

 slender and extending considerably behind the eye. Eye moderate, 

 three and one-half in head. Dorsal rays, nine ; anal rays, thirty to 

 thirty-two. Pectorals reaching the ventrals. Scales, 6-55 to 60-10. 

 Color, bluish above, sides silvery. Dorsal, anal, and caudal with dusky 

 tips. Length about one foot. 



Ohio River and northward. Has been taken at New Harmony by 

 Dr. Jordan (^, '88, 163); Vigo County, where it is reported as common 

 by Professor O. P. Jenkins (16, 95); Gosport (Eigenmann, ^4, '93, 93). 



So far as I am aware, no observations have been made on the habits 

 of this animal. Its food is similar probably to that of the next species. 



HiODON TERGI8US LeSueur. 



Toothed Herring ; Moon-eye. 



Hyodon tergisus, Jordan and Gilbert, 1882, 8, 260 ; Jordan, 1884, 12, 

 613, pi. 219. 



Form similar to that of the preceding. Depth in length, three and 

 one- fourth. Head in length, four and one-third. Snout rounded, five 

 in head. Eye large, three in head. Mouth not so large as in H. 

 alosoides, the maxilliary reaching to the hinder border of the pupil. 

 Dorsal rays, twelve ; anal, twenty-eight. Scales, 7-58-9. Pectorals 

 falling considerably short of the venti-als. Belly in front of the ven- 

 trals rounded, keeled behind them. Color above bluish, bright silvery 

 on all the scales. Fins pale. Length about twelve inches. • 



Great Lakes and southward in the Mississippi Valley. While this 

 species is spoken of as being abundant, I have found few reports of its 

 having been taken in Indiana. Messrs. Jenkins and Evermann found it 

 in the Tippecanoe River, in Carroll County (23, '88, 48), and Professor 

 Gilbert took it in Greene County (24, '93, 93) ; Professor Milner states 

 (11, '72-3, 36) that in the Great Lakes the species is found from shore 

 to a depth of twenty fathoms. Dr. Jordan (14, No. 2) states that it is 

 a common fish in Lake Michigan. 



Two specimens of this fish were examined by Professor Forbes. They 

 were found to have eaten principally terrestrial insects. In one was 

 found a trace of a univalve mollusk. Its large raptorial teeth would 

 seem to indicate that it is accustomed to capture other fishes. 



