132 REPORT OF NEW JERSEY STATE MUSEUM. 



less common than those of Semofilns atromacidatus. Many which 

 I examined lack the barbel, especially the very young. They 

 may be easily distinguished by their round or robust bodies and 

 large scales. Young of about i^ inches show a dusky band 

 from the eye to the base of the caudal, though there is no dis- 

 tinct black spot at the base of the latter. When about 3 inches 

 or over in length the dusky lateral band is seen to become 

 diffuse, and more or less fades out altogether as the fish increase 

 in size. When taken from the water the chub sometimes makes 

 a squeaking noise more like a voice than any produced by our 

 other fresh-water fishes. The food consists of insects, frequently 

 apple bugs (Gy?'inidce) . Dr. Bean very rightly contends that 

 the preliminary diagnosis of Cyprinns corporalis of Mitchill is 

 insufficient. I therefore follow him in adopting Cyprinns hidlaris 

 of Rafinesque. 



SemotUus huUaris Jordan, An. N. Y. Acad. Sci.. I, 1879. P- 

 108. — Abbott, Nat. Rambles, 1885, p. 479. 



SemotUus corporalis Abbott, Proc. Acad. Nat. Sci., Phila., 

 1861, p. 154. — E. Smith, Proc. Lin. Soc, N. Y., IX, 1897, p. 2y. 



Leucosomus rhotheits Cope, Proc. Acad. Nat. Aci., Phila., 

 1861, p. 523, based on Abbott. 



SemotUus rhotheus Cope, Trans. Amer. Philos. Soc, Phila., 

 XIII, 1869, p. 362, PL 10, fig. I.— Abbott, Geol. N. J., 1868 

 (1869), p. 823. — Abbott, Am. Nat. IV, 1870, pp. 100, no, 116, 

 fig. 32. — Abbott, 1. c, p. 385. — Abbott, 1. c. VIII, 1874, p. 327. — 

 Abbott, Rep. U. S. F. Com., 1875-76, p. 840. 



Semotilus atromaculatus (Mitcliill). 



Chub. 



Head 3^^ ; depth 4% ; D. 11, 7; A. iii, 7; scales 55 in lateral 

 line to base of caudal, 3 more on latter ; 1 1 scales obliquely back 

 from origin of dorsal to lateral line; 6 scales between origin of 

 anal obliquely forward to lateral line; snout 3H i^ head; eye 

 5^ ; maxillary 2J/5 ; interorbital space 2^ ; pectoral i^ ; ventral 

 I j/5 ; pharyngeal teeth 2, 5 — 4, 2. Body stout. Profile of pre- 



