| Autor: |
Cloutman DG; P.O. Box 197, Burdett, Kansas, U.S.A., Adrian AB; Office of the Chief Information Officer, NASA Headquarters, Washington, D.C., U.S.A., McAllister CT; Division of Science and Mathematics, Eastern Oklahoma State College, Idabel, Oklahoma, U.S.A., Stallsmith BW; Department of Biological Sciences, University of Alabama in Huntsville, Huntsville, Alabama, U.S.A., Fayton TJ; Department of Microbiology and Immunology, Cornell University, Ithaca, New York, U.S.A., Robison HW; 9717 Wild Mountain Drive, Sherwood, Arkansas, U.S.A. |
| Abstrakt: |
A revisionary study revealed two species of monogeneans, Dactylogyrus crucis Rogers, 1967 and Dactylogyrus lythruri sp. n., parasitising Lythrurus Jordan (formerly a subgenus of Notropis Rafinesque, 1818). New records and updated taxonomy of seven of 12 known minnows of the genus of Lythrurus are provided for D. crucis. A record of Dactylogyrus attenuatus Mizelle et Klucka, 1953 (syn. Dactylogyrus umbratilus [Kimpel, 1939], nomen nudum) on Lythrurus umbratilis (Girard) is referrable to D. crucis. Dactylogyrus lythruri is described from eight species of Lythrurus. It most closely resembles Dactylogyrus beckeri Cloutman, 1987, but is distinguished by having a smaller base of the male copulatory organ (MCO) and lacking a ventral enlargement of the distal end of the basal process. Previous reports of Dactylogyrus banghami Mizelle et Donahue, 1944 and Dactylogyrus cf. beckeri Cloutman, 1987 from Lythrurus atrapiculus (Snelson) and Lythrurus bellus (Hay) from Alabama, and Dactylogyrus confusus Mueller, 1938 from L. umbratilis in Illinois are herein relegated to D. lythruri. Four species of Lythrurus appeared not to be infected with Dactylogyrus. |
