Euryhelmis squamula (Digenea: Heterophyidae) Recovered from Korean Raccoon Dog, Nyctereutes procyonoides koreensis, in Korea
10.3347/kjp.2021.59.3.303
- Author:
Hyeon Cheol KIM
1
;
Eui Ju HONG
;
Si Yun RYU
;
Jinho PARK
;
Jeong Gon CHO
;
Do Hyeon YU
;
Joon Seok CHAE
;
Kyoung Seong CHOI
;
Bae Keun PARK
Author Information
1. College of Veterinary Medicine and Institute of Veterinary Science, Kangwon National University, Chuncheon 24289, Korea
- Publication Type:Brief Communication
- From:The Korean Journal of Parasitology
2021;59(3):303-309
- CountryRepublic of Korea
- Language:English
-
Abstract:
In this study, we intended to describe an unrecorded species of heterophyid trematode recovered from the small intestine of a Korean raccoon dog, Nyctereutes procyonoides koreensis, in Korea. A total of 13 small flukes were collected from a deceased Korean raccoon dog which was found in Chuncheon-si, Gangwon-do, Korea in May 2017. The trematode body were covered with many small spines, rectangular, broader than long, 807-1,103 µm long and 1,270-1,550 µm wide. Oral sucker in the anterior end slightly smaller than acetabulum. Pharynx muscular and well developed. Esophagus relatively long and sigmoid. Acetabulum small and located at median in anterior 2/5 portion. Ceca bifurcated at the anterior of genital pore and acetabulum and terminated at testis level. Testes larger, deeply lobed and located at the near of posterior end of body. Ovary small, triangular and located at the slight left of median and the anterior of left testis. Vitelline follicles dendritic and extend from the middle level of esophagus to the posterior portion of body. Eggs embryonated, operculated, small and 33-35×15-16 µm in size. Based on the morphological characteristics, the small heterophyid flukes recovered from the small intestines of Korean raccoon dog, N. procyonoides koreensis, were identified as Euryhelmis squamula (Digenea: Heterophyidae). Accordingly, this species of heterophyid flukes is to be a new trematode fauna in Korea by this study.
