Placobdella cryptobranchii is a rarely collected leech of the Ozark hellbender (Cryptobranchus alleganiensis bishopi) in northern Arkansas and southern Missouri, U.S.A. Between October 2002 and August 2005, 58 hellbenders were examined from Eleven Point River (Randolph Co., Arkansas and Oregon Co., Missouri), the north fork of the White River (Ozark Co., Missouri), and the Spring River (Fulton Co., Arkansas). Forty-one of the 58 hellbenders (70.7%) were infested with 1–140 leeches with a mean intensity (±SD) of 8.7 (±22.1) and a relative abundance (±SD) of 6.3 (±18.9). Contingency table analysis and t-tests revealed no significant differences in prevalence and mean intensity among various years and localities sampled. Leech size did not substantially change over the time period sampled. The dorsal pigmentation of live specimens of P. cryptobranchii is described for the first time.
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1 January 2008
Placobdella cryptobranchii (Rhynchobdellida: Glossiphoniidae) on Cryptobranchus alleganiensis bishopi (Ozark Hellbender) in Arkansas and Missouri
William E. Moser,
Dennis J. Richardson,
Benjamin A. Wheeler,
Kelly J. Irwin,
Bruce A. Daniels,
Stanley E. Trauth,
Donald J. Klemm
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Arkansas
Cryptobranchus alleganiensis bishopi
Desserobdella
Glossiphoniidae
Missouri
Ozark Hellbender
Placobdella cryptobranchii
