Comparative Parasitology 67(1) 2000 - Peru State College
Comparative Parasitology 67(1) 2000 - Peru State College
Comparative Parasitology 67(1) 2000 - Peru State College
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BURSEY AND GOLDBERG~-/l/VG7aSTOAM ONYCHODACTYLA SP. N. 61<br />
Table 1. Prevalence, intensity, and abundance of helminths collected from 68 Onychodactylus japonicus.<br />
Helminth<br />
Trematoda<br />
Cephnlouterina leoi<br />
Mesocoelium brc vicaecum<br />
Pseudopolystoma dendriticum<br />
Nematoda<br />
Angiostoma onychodactyla sp. n.<br />
Parapharyngodon japonicus<br />
Acanthocephala<br />
Unidentified cystacanlhs*<br />
* New host record.<br />
Prevalence Mean Mean<br />
(%) intensity ± SD abundance ± SD Site<br />
3<br />
5<br />
1<br />
24<br />
38<br />
morphism not prominent. Oral opening with 3<br />
lips. Esophagus with corpus, isthmus, and pseudobulb,<br />
nerve ring at level of anterior isthmus.<br />
Excretory pore anterior to the esophagointestinal<br />
junction.<br />
MALE (holotype and 9 paratypes; mean and<br />
range): Length 3.36 (2.60-3.90) mm. Maximum<br />
width 103 (89-128). Buccal cavity 9 (6-<br />
11) deep. Length of esophagus 297 (251-319),<br />
corpus 160 (145-175), isthmus 76 (66-88), bulb<br />
60 (55-68). Nerve ring 192 (188-285) and excretory<br />
pore 236 (188-285) from anterior end.<br />
Spicules equal, 128 (120-143), well chitinized,<br />
arcuate. Gubernaculum well chitinized, 44 (37—<br />
48). Testis single and reflexed. Caudal alae welldeveloped,<br />
supported by 8 pairs of postcloacal<br />
pedunculate papillae that do not reach the ala<br />
edge. Tail spike extends approximately 20 beyond<br />
bursa. Subventral cloacal sensilla absent.<br />
Phasmids lateral, immediately posterior to terminal<br />
pair of postcloacal papillae.<br />
FEMALE (allotype and 9 paratypes; mean and<br />
range): Length 4.21 (3.25-5.07) mm. Width at<br />
level of vulva 117 (89-153). Buccal cavity 9 (6-<br />
11) deep. Esophagus 301 (274-342), corpus 162<br />
(149-170), isthmus 78 (68-86), bulb 60 (57-<br />
63). Nerve ring 202 (171-274), excretory pore<br />
228 (200-268) from anterior end, respectively.<br />
Vulva 2.06 (1.53-2.40) mm from anterior end,<br />
slightly pre-equatorial. Tail elongated, 189 (171-<br />
239). Amphidelphic; uteri divergent; anterior<br />
uterus directed anteriorly, posterior uterus directed<br />
posteriorly; ovaries reflexed. Uteri containing<br />
numerous elliptical eggs, 56 (51—58) X<br />
48 (46-57), larvae absent.<br />
Taxonomic Summary<br />
TYPE HOST: Onychodactylus japonicus<br />
(Houttuyn, 1782), Japanese clawed salamander.<br />
1<br />
1 0.03 ± 0.17<br />
5.0 ± 2.0 0.22 ± 1.09<br />
1 0.02 ±0.12<br />
3.8 ± 3.8 0.88 ± 2.41<br />
4.8 ± 5.6 1.82 ± 4.13<br />
1 0.02 ± 0.12<br />
Small intestine<br />
Small intestine<br />
Bladder<br />
Small intestine<br />
Large intestine<br />
Coelom<br />
TYPE LOCALITY: Hineomata, Fukushima Prefecture,<br />
Honshu, Japan, 37°01'N, 139°23'E.<br />
SITE OF INFECTION: Small intestine.<br />
TYPE SPECIMENS: Holotype: male, United<br />
<strong>State</strong>s National Parasite Collection (USNPC),<br />
Beltsville, Maryland, USNPC 88645; allotype,<br />
female, USNPC 88646; paratypes (9 males, 9<br />
females) USNPC 88647.<br />
ETYMOLOGY: The new species is named in<br />
reference to the genus of the host.<br />
Remarks<br />
The genus Angiostoma now consists of 10<br />
species in the monogeneric family Angiostomatidae<br />
(order Rhabditida); 8 species infect terrestrial<br />
gastropods and 2 species are from salamanders.<br />
The type species, Angiostoma limacis<br />
Dujardin, 1845, has been collected from arionid<br />
gastropods in western Europe (Morand and Spiridonov,<br />
1989). Six additional species are known<br />
from terrestrial gastropods in the Palaearctic<br />
Realm: Angiostoma asamati Spiridonov, 1985,<br />
from a gigantolimacid (Spiridonov, 1985); Angiostoma<br />
aspersae Morand, 1986, from helicids<br />
(Morand, 1986); Angiostoma dentifera (Mengert,<br />
1953) from limacids (Morand and Spiridonov,<br />
1989); Angiostoma kimmeriensis Korol<br />
and Spiridonov, 1991, from a zonitid (Korol and<br />
Spiridonov, 1991); Angiostoma spiridonovi<br />
Morand, 1992, and Angiostoma stamrneri (Mengert,<br />
1953) from limacids (Mengert, 1953; Morand,<br />
1992). Angiostoma schizoglossae Morand<br />
and Barker, 1995, was described from a specimen<br />
taken from a rhytidid gastropod endemic to<br />
New Zealand, Australian Realm (Morand and<br />
Barker, 1995). Angiostoma plethodontis Chitwood,<br />
1933, was described from the northern<br />
redback salamander, Plethodon cine re us (Green,<br />
Copyright © 2011, The Helminthological Society of Washington