Key points are not available for this paper at this time.
FOWLER, H. W. 1912. Some features of ornamentation in fresh-water fishes. Am. Nat. 46: 470-476. GIBBS, R. H., JR. 1957. Cyprinid fishes of the subgenus Cyprinella of Notropis. I. Systematic status of the subgenus Cyprinella, with a key to the species exclusive of the lutrensis-ornatus complex. Copeia 1957(3) :185-195. HUBBS, C. L. 1954. Establishment of the forage fish, the red shiner (Notropis lutrensis) , in the lower Colorado River system. Calif. Fish Game 40:287-294. , AND A. I. ORTENBURGER. 1929. Fishes collected in Oklahoma and Arkansas in 1927. Univ. Okla. Bull. n.s. No. 434. Publ. Univ. Biol. Surv. 1 (3) :47-112. , AND B. WALKER. 1942. Habitat and breeding behavior of the American cyprinid fish Notropis longirostrus. Copeia 1942(2): 101-104. KIMURA, S., AND Y. TAO. 1937. Notes on the nuptial coloration and pearl organs in Chinese fresh-water fishes. Shanghai Sizenkagaku Kenkyusyo Iho 6(11) :277-318. (In Chinese, not seen.) MILLER, R. R. 1952. Bait fishes from the lower Colorado River from Lake Mead, Nevada, to Yuma, Arizona with a key for their identification. Calif. Fish Game 38:7-42. , AND C. LOWE. 1964. In: The Vertebrates of Arizona. C. Lowe, Ed. Univ. Ariz. Press, Tucson, Arizona. MINCKLEY, W. L. 1959. Fishes of the Big Blue River Basin, Kansas. Univ. Kans. Publ. Mus. Nat. Hist. 11:401-442. RAMASWAMI, L. S., AND A. D. HASLER. 1955. Hormones and secondary sex characteristics in the minnow, Hyborhynchus. Physiol. Zool. 28:62-68. REIGHARD, J. 1903. The function of the pearl organs of the Cyprinidae. Science 17:531. 1904. Further observations on the breeding habits and on the functions of pearl organs in several species of Eventognathi. Ibid. 19:211.
Miller et al. (Fri,) studied this question.