Two Echinostome Species, Pegosomum bubulcum and Nephrostomum ramosum (Digenea: Echinostomatidae), from an Eastern Cattle Egret, Bubulcus ibis coromandus, in Republic of Korea.
10.3347/kjp.2016.54.4.485
- Author:
Seongjun CHOE
1
;
Dongmin LEE
;
Hansol PARK
;
Hyeong Kyu JEON
;
Youngsun LEE
;
Eunju KIM
;
Ki Jeong NA
;
Keeseon S EOM
Author Information
1. Department of Parasitology, Medical Research Institute and Parasite Resource Bank, School of Medicine, Chungbuk National University, Cheongju 28644, Korea. kseom@chungbuk.ac.kr
- Publication Type:Original Article
- Keywords:
Pegosomum bubulcum;
Nephrostomum ramosum;
Bubulcus ibis coromandus;
echinostome;
parasite;
cattle egret
- MeSH:
Animals;
Bile Ducts;
Birds;
Cattle*;
Chungcheongbuk-do;
Classification;
Esophagus;
Female;
Intestine, Small;
Korea;
Ovary;
Parasites;
Republic of Korea*;
Spine;
Testis;
Trematoda;
Vitellins
- From:The Korean Journal of Parasitology
2016;54(4):485-496
- CountryRepublic of Korea
- Language:English
-
Abstract:
We describe 2 echinostome species recovered from an Eastern cattle egret, Bubulcus ibis coromandus, from Cheongju-si (city), Chungcheongbuk-do (province), Korea. Total 72 Pegosomum bubulcum specimens were recovered from the bile duct. They were 7,566×2,938 μm in average size and had 27 collar spines with vitelline extension from anterior 1/3 level of the esophagus to mid-level of the posterior testis as characteristic features. Total 9 specimens of Nephrostomum ramosum were recovered in the small intestines of the bird. They were ribbon-shaped, 11,378×2,124 μm in average size, and morphologically variable in some organs, i.e., the number of collar spines (47-50), the shape of ovary and testes, and the extension of vitelline follicles. These morphological variations observed in a single host indicated that these features are not critical for the classification of Nephrostomum species and thus were reconsidered taxonomically as synonym of N. ramosum. This study is the first report documenting and describing both flukes and their associated genera in Korea.
