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Comparative Parasitology 68(2) 2001 - Peru State College

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Comp. Parasitol.<br />

<strong>68</strong>(2), <strong>2001</strong>, pp. 185-189<br />

Cepedietta michiganensis (Protozoa) and Batracholandros<br />

magnavulvaris (Nematoda) from Plethodontid Salamanders in West<br />

Virginia, U.S.A.<br />

JAMES E. JOY' AND ROBERT B. TUCKER<br />

Department of Biological Sciences, Marshall University, Huntington, West Virginia 25755,<br />

U.S.A. (e-mail: joy@marshall.edu)<br />

ABSTRACT: The gastrointestinal tracts of 38 plethodontid salamanders (25 Plethodon punctatus and 13 Plethodon<br />

wehrlei), collected at high elevation sites in Pendleton and Randolph counties, West Virginia, U.S.A., were<br />

examined for parasites in 1996. Sixty percent of P. punctatus and 23% of P. wehrlei were infected by the ciliate<br />

Cepedietta michiganensis, while prevalences of the nematode Batracholandros magnavulvaris were 52% and<br />

30% for P. punctatus and P. wehrlei, respectively. Mean intensities were 3.4 nematodes per infected host for<br />

P. punctatus and 4.0 for P. wehrlei. Only 2 of 61 B. magnavulvaris collected were males. This is the first report<br />

of parasites from these plethodontid species and the first record of C. michiganensis from West Virginia.<br />

KEY WORDS: Batracholandros magnavulvaris, Cepedietta michiganensis, Plethodon punctatus, Plethodon<br />

wehrlei, Ciliata, Nematoda, West Virginia, U.S.A.<br />

The Cow Knob salamander, Plethodon punctatus<br />

Highton, 1972, is a large plethodontid salamander<br />

known only from higher elevations<br />

(>730 m) of the Shenandoah and Great North<br />

mountains in Augusta, Rockingham, and Shenandoah<br />

counties of Virginia (Buhlmann et al.,<br />

1988; Conant and Collins, 1991). The range of<br />

this rare species in West Virginia is restricted to<br />

higher elevations (>730 m) of Hardy and Pendleton<br />

counties in the eastern panhandle. All 25<br />

P. punctatus examined for this study were collected<br />

on Shenandoah Mountain in Pendleton<br />

County, West Virginia, from June through August<br />

1996, under a permit granted by the West<br />

Virginia Division of Natural Resources<br />

(WVDNR) and written permission from the U.S.<br />

Fish and Wildlife Service.<br />

Wehrle's salamander, Plethodon wehrlei<br />

Fowler and Dunn, 1917, is considered a near<br />

sibling of P. punctatus, and has been recorded<br />

from a wide range of elevations in 28 of West<br />

Virginia's 55 counties (Green and Pauley, 1987).<br />

The geographic range of P. wehrlei extends<br />

from southwestern New York to northwestern<br />

North Carolina (Conant and Collins, 1991). All<br />

13 P. wehrlei individuals used in this study were<br />

collected from Shaver's Mountain in Randolph<br />

County, West Virginia, from May through August<br />

1996, under a permit from the WVDNR.<br />

The original purpose of collecting these plethodontid<br />

species was to obtain reproductive and<br />

Corresponding author.<br />

185<br />

ecological data for use in forest and wildlife<br />

management plans. Because there are no published<br />

reports of parasites from either species,<br />

these collections also offered the opportunity to<br />

examine them for parasites.<br />

Materials and Methods<br />

All salamanders were anesthetized in Chloretone®<br />

within 48 hr of collection. Snout-to-vent lengths (SVL)<br />

were measured with vernier calipers to the nearest 0.1<br />

mm. Salamanders were killed by decapitation, sexed,<br />

and the small and large intestines were removed for<br />

examination. The SVL for P. punctatus (ft/mean in mm<br />

± 1 SD) was 18/63.8 ± 6.9 for males and 7/65.3 ±<br />

7.9 for females. Because the difference in mean SVL<br />

for males versus females was not significant (£0.05,23 =<br />

0.469), individuals of both host sexes were combined<br />

to calculate prevalence of ciliate infection and prevalence<br />

and mean intensity of nematode infection. The<br />

SVL for P. wehrlei (/z/mean in mm ± 1 SD) was 6/<br />

59.8 ± 9.3 for males and 7/59.9 ± 11.7 for females.<br />

Again the difference in mean SVL for males versus<br />

females was not significant (?oo5,ii = 0.017), and the<br />

data for both host sexes were combined for calculations<br />

of prevalence and mean intensity.<br />

During necropsy it was evident that both salamander<br />

species harbored astomatous ciliates and nematodes.<br />

Whole mounts of these ciliates and nematodes were<br />

prepared by staining in Semichon's acetic carmine, dehydrating<br />

in an ethanol series, clearing in xylene, and<br />

mounting in Permount®. Voucher specimens have been<br />

deposited in the U.S. National Parasite Collection,<br />

Beltsville, Maryland 20705, U.S.A., under accession<br />

numbers USNPC 89838 (Cepedietta michiganensis)<br />

and USNPC 89839 (Batracholandros magnavulvaris).<br />

Results<br />

The astomatous ciliate, C. michiganensis<br />

(Woodhead, 1928) Corliss, de Puytorac, and<br />

Copyright © 2011, The Helminthological Society of Washington

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