Light and Scanning Electron Microscopy of Tetragomphius procyonis (Ancylostomatoidea) from Wild Badger

한국산 야생 오소리에서 분리한 오소리구충 (Tetragomphius procyonis)의 광학 및 주사전자현미경 소견

  • Son, Hwa-Young (Institute of Veterinary Science and College of Veterinary Medicine, Chungnam National University) ;
  • Oh, Yoon-Hee (Institute of Veterinary Science and College of Veterinary Medicine, Chungnam National University) ;
  • Kim, Hyeon-Cheol (School of Veterinary Medicine, Kangwon National University) ;
  • Park, Bae-Keun (Institute of Veterinary Science and College of Veterinary Medicine, Chungnam National University)
  • Published : 2009.08.31

Abstract

Tetragomphius procyonis Baylis & Daubney, 1923 were obtained from the pancreatic duct of a naturally infected Eurasian badger, Meles meles, which was submitted to animal hospital for parasitic diagnosis from Gyeryongsan National Park in Korea. The hookworms were examined by light and scanning electron microscope. The length of body measured male 15.0-18.8 mm, female 21.5-25.5 mm, respectively. In both sex, the ventral cutting plates of oral margin are much reduced and elongated latero-dorsally, the dorsal cutting plate is located long follow doral margin of the oral opening. The buccal capsule is cup-shaped and thicken with four cusped tooth at its base. The copulatory bursa has elongated ventral lobes and their large rays are parallel, while the dorsal lobe with its supporting rays is slightly split in two. The slender spicules are filariform and very long (8.7-9.3 mm), and their tips are fused together. The hookworm has following characters: dorsal cone on the both sex, gubernaculum on the male and terminal spine on the female tail absent; vulva is opening in the juction of the fourths and fifths of the body; dorsal ray with two long stems. The eggs from the uterus are 16 cell stages and those from the rectal feces, 32 cell stages. The size of eggs is 77.48-83.45 ${\times}$ 50.75-63.38 ${\mu}m$.

계룡산국립공원으로부터 기증된 야생오소리의 췌장에서 오소리구충 (Tetragomphius procyonis)을 분리하여 광학 및 주사전자현미경으로 그 형태를 관찰하였다. 충체의 길이는 수컷 15.0-18.8 mm, 암컷 21.5-25.5 mm에 달하였다. 암수 모두 구강 복면 변연에 한 쌍의 절판과 배면에 하나의 절판이 존재하였다. 컵모양의 구강 기저부에 한쌍의 분기된 아복치 및 한쌍의 아배치가 존재하였다. 충체 전체에 가로 줄무늬가 존재하였고 경부유두 선상의 복측 중앙에 배설공이 개구하였다. 가늘고 긴 교접자 (8.7-9.3 mm)는 그 끝이 서로 융합되어 있었다. 교접낭은 잘 발달되어 있었으며 잘 발달된 배늑은 평행으로 주행하였다. 음문은 충체 후방 4/5 부위에 개구하였고 꼬리에는 미돌기 및 미유두가 존재하지 않았다. 배구 및 부교접자가 존재하지 않았으며 음문은 체후방 4/5에 개구하였다. 자궁내의 충란은 16 세포기였고 직장내의 충란은 32 세포기였으며 충란의 크기는 77.48-83.45 ${\times}$ 50.75-63.38 ${\mu}m$였다.

Keywords

References

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