Comparative Parasitology 68(2) 2001 - Peru State College
Comparative Parasitology 68(2) 2001 - Peru State College
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