Bucephalopsis ovata from a naturally infected catfish.

Anterior part of Anisakis Type I larva showing boaring teeth x200

Clonorchis sinensis adult worms (about 2900) recovered from a heavy infected case during surgery of gall bladder.

A destroyed Clonorchis sinensis by praziquantel treatment. Only anterior part and the body margin remained.

Fresh adult worms of Clonorchis sinensis recovered from experimentally infected rabbits. Worms in the right side are 4 weeks old and those in the left are 12 weeks old. The worm is grossly red but the intestinal ceca and distal uterus are dark.

Adult Clonorchis sinensis, acetocarmine stained. Its uterus is full of eggs, ovary and two tandem branched testes are seen well.

An adult fluke of Echinostoma hortense recovered from a patient, acetocarmine stained. x 10.

Numerous adult flukes of Echinostoma hortense recovered from a patient living in an endemic area.

An adult fluke of Echinostoma cinetorchis in the feces of an infected person. See that the anterior testis has been displaced a little from its original position. x 10.

An adult fluke of Echinostoma cinetorchis recovered from an experimentally infected rat. Note that the 2 testes disappeared in this specimen. x 10.

Buccal capsule of adult worm of Ancylostoma caninum. Ancylostoma caninum is a common parasite of dogs. A wide buccal capsule bearing three pairs of ventral teeth is a diagnostic character of the species. The larval stage has been reported as causing creeping eruption to human.

A scolex of Taenia solium. The scolex is roughly quadrate, with a diameter of about 1mm, has four large, deeply cupped suckers and a conspicuous, rounded rostellum, armed with a double row of large and small hooks, numbering 22 to 36 and measuring 140 to 200 um and 100 to 150 um, respectively, in length. x40

Transverse section of Ascaris lumbricoides lips. There are 3 lips observed.

Male reproductive organ of Trichostrongylus orientalis. Brown colored paired spicules are characteristic features.

Adult worm of Dicrocoelium dendriticum. Male and female reproductive systems are reversely located compared with other trematodes.

Adult worm of Opisthorchis viverinii.

Adult worm of Opisthorchis felineus.

Adult worm of Paragonimus westermani.

Adult worm of Eurytrema pancreaticum.

Adult worm of Metagonimus yokogawai

Scolex of Diphyllobothrium latum.

Note the bothria, two deep dorsoventral suctorial grooves, which are typical structures of the pseudophyllidean tapeworm.

Scolex of Hymenolepis nana.

Scolex of Hymenolepis diminuta.

Proglottid of Taenia saginata.

Adult worm of Echinostoma hortense.

Adult worm of Eurytrema pancreaticum.

Hard tick (Dermacentor sp.), female (dorsal view)

European house dust mite (Dermatophagoides pteronyssinus), male adult (ventral side of slide-specimen). This species and American house dust mite (Dermatophagoides farinae) are the most important, cosmopolitan species among house dust mites (Pyroglyphidae).

Female of Tabanus sp. (Diptera, Tabanidae), lateral view. Tabanids are large, stout and colorful insects which transmit loasis.

Female of Demodex folliculorum (Acari, Demodicidae), a ventral view. This mite is extra-ordinarily elongated.

A house fly (Musca domestica) laying eggs. Masses of milky white, banana shaped eggs are seen.

Pubic louse(Phthirus pubis) female (dorsal view of slide-mounted specimen), belonging to Phthiridae, Anoplura.

Spicule (male genital organ) of Ascaris lumbricoides.

A Ascaris lumbricoides male adult. This worm was obtained from vomitus of an infected person.

Posterior part of the male worm of Ancylostoma duodenale showing postero-lateral copulatory in copuratory bursa, X100

Posterior part of the male worm of Ancylostoma duodenale showing postero-lateral copulatory in copulatory bursa, X40

Anterior part of the female worm of Ancylostoma duodenale showing head part, dorsal view, ventral teeth, dorsal teeth, and groove in capsule wall, X100

Anterior part of the female worm of Ancylostoma duodenale showing head part, dorsal view, ventral teeth, dorsal teeth, and groove in capsule wall, X40

Eurytrema pancreaticum : from pancreas of cattle, Acetocarmine stain, X40

Clonorchis sinensis : from liver of rabbit, Acetocarmine stain, X40

Diphyllobothrium latum: Rosette shape uteri in the gravid proglittids stained with Aceto-carmine solution, X20

Diphyllobothrium latum : Rosette-shape uteri in the gravid proglottids stained with Aceto-carmine solution, X 40

Hymenolepis nana : Anterior part of scolex, Acetocarmine stain, X 450

Hymenolepis nana : midle part of gravid proglottids, Acetocarmine stain, X200

Hymenolepis nana : Midle part of gravid proglottids, Acetocarmine stain, X450

Centrocestus armatus : Semicons acetocarmine stain, X 450

Centrocestus armatus : Head part of collar spine, Acetocarmine stain, X450

Cross section of adult A. lumbricoides male

Cross section of A. lumbricoides female

E. vermicularis (male adult) xl00

E. vermicularis adult(female) showing esophageal bulb. x200

Anterior part of E. vermicularis (female) showing cephalic alae. x200

Tail part of A. cantonensis(male) showing spicule and bursa. x200

Posterior part of N. americanus(male) showing dorsal ray and spicule. x200

Magnigication of dorsal ray in N. americanus (male). x400

Posterior part of A. duodenale(male) showing dorsal ray. x200

Magnigication of dorsal ray in A. duodenale(male). x400

Posterior end of N. americanus(female) x200

Posterior end of A. duodenale(female) showing mucron x200

Plagiorchis muris adult worm collected from a naturally infected human, 2.9 mm long and 0.9 mm wide. (Hong et al. 1996. J Parasitol 82:647-9).

Centorcestus armatus, adult worm, recovered from experimental rat.
326 um long and 197 um wide.

Neodiplostomun seoulense, lateral view, recovered from an experimental rat. Acetocarmine stained.

Heterophyopsis continua, adult worm, recovered from experimental chick. 2.22 mm long by 0.27 mm wide. Acetocarmine stained.(Hong et al. 1990. Korean J Parasitol 28:53-62.)

Stellantchasmus falctus collected from a naturally infected man.

Metagonimus yokogawai, adult worm. Acetocarmine stained.

Clonorchis sinensis collected from a patient.

Clonorchis sinensis collected from a patient.

Paragonimus westermani, adult worm. x4.

The scolex of Taenia saginata shows four muscular suckers and the rostellum without a hooklet.

The scolex of Taenia solium shows four muscular suckers and the rostellum with hooklets.

A mature proglottid of Taenia solium, acetocarmine stained. Note an accessory ovarian lobe in between two ovarian lobes.

The scolex of Hymenolepis nana shows suckers and an invaginated rostellum. x100.

A mature proglottid of Dipylidium caninum contains bilaterally two sets of reproductive system. x100.

Trichuris trichiura, male.

Stichosome of Trichuris trichiura.

Posterior part of male Trichuris trichiura.

Posterior part of female Trichuris trichiura.

The transitional part leading the anterior slender part to the posterior thick part containing reproductive organs in female Trichuris trichiura. The vagina opens at this part.

An oblique section of stichosome shows a chain of stichocytes in Trichuris trichiura. x400.

A parasitic female of Strongyloides stercoralis. x100.

The transient junction of esophagus (left) to intestine, Strongyloides stercoralis. Photographed with a microscope with differential interference contrast attachment (DIC). x200. (Hong et al. 1988. Korean J Parasitol 26: 22-6).

Esophagus of Strongyloides stercoralis. x200.

An intra-uterine egg of parasitic Strongyloides stercoralis. Photographed with a microscope with differential interference contrast attachment (DIC). x200. (Hong et al. 1988. Korean J Parasitol 26: 22-6).

Tail part of parasitic Strongyloides stercoralis. x200.

The copulatory bursa of Ancylostoma duodenale shows a dorsal costa (center).

Buccal cavity of Ancylostoma duodenale.

Buccal cavity of Necator americanus.

Anterior and posterior parts of female Enterobius vermicularis.

A cross section of female Enterobius vermicularis at midgut level shows lateral alae, intestine and intra-uterine eggs. H & E stained. x200.

Tangled mass of Ascaris lumbricoides.

Phthirus pubis.

Scolex of Hymenolepis nana showing 2 suckers and rostellum with hooks(A). Mature proglottids have 3 testes (B) (Carmine stain).

Adult of Echinococcus granulosus showing a scolex and 3 proglottids (immature, mature and gravid)(Carmine stain).

H. nocens from a cat.

Ventral sucker and gonotyl (genital sucker) of H. nocens.

H. nocens from a cat. Semichon's acetocarmine stained.

H. nocens from human. Semichon's acetocarmine stained.

H. continua collected from a cat. Semichon's acetocarmine stained.

Pygidiopsis summa collected from a cat. Semichon's acetocarmine stained.

P. summa recovered from a dog, which was experimentally infected with metacercariae. Semichon's acetocarmine stained.

Stellantchasmus falcatus collected from a cat.

S. falcatus collected from a cat. Semichon's acetocarmine stained.

Stictodora fuscatum recovered from a cat which was experimentally infected with metacercariae. Semichon's acetocarmine stain.

Centrocestus armatus recovered from a mouse, which was experimentally infected with metacercariae.

Metagonimus yokogawai recovered from a hamster which was experimentally infected with metacercariae. Semichon's acetocarmine stain.

Gymnophalloides seoi recovered from a mouse, which was experimentally infected with metacercariae.

G. seoi recovered from a mouse, which was experimentally infected with metacercariae. Semichon's acetocarmine stained.

P. timondavidi recovered from a mouse, which was experimentally infected with metacercariae.

P. timondavidi recovered from a mouse, which was experimentally infected with metacercariae. Semichon's acetocarmine stained.

E. revolutum collected from a cat. Semichon's acetocarmine stained.

E. revolutum collected from a rat. Semichon's acetocarmine stained.

E. revolutum showing te head crown.

E. hortense recovered from a rat, which was experimentally infected with metacercariae.

E. hortense adult worms collected from human after treatment with praziquantel.

E. hortense from human. Semichon's acetocarmine stained.

E. hortense collected from a cat. Semichon's acetocarmine stained.

E. hortense recovered from a rat, which was experimentally infected with metacercariae. Semichon's acetocarmine stained.

E. cinetorchis with two testes recovered from a rat, which was experimentally infected with metacercariae. Semichon's acetocarmine stained.

E. cinetorchis with one testis recovered from a rat, which was experimentally infected with metacercariae. Semichon's acetocarmine stained.

E. cinetorchis with one dislocated-testis recovered from a rat, which was experimentally infected with metacercariae. Semichon's acetocarmine stained.

E. cinetorchis recovered from an experimentally infected rat. Testis is not seen. Semichon's acetocarmine stained.

E. recurvatum recovered from an experimentally infected duck. Semichon's acetocarmine stained.

E. recurvatum recovered from an experimentally infected duck. Semichon's acetocarmine stained.

Schematic drawing of E. recurvatum.

E. recurvatum recovered from a rat. Semichon's acetocarmine stained.

Head crown and collar spines of E. recurvatum.

E. japonicus recovered from an experimentally infected dog. Semichon's acetocarmine stained.

E. japonicus recovered from a cat. Semichon's acetocarmine stained.

P. cordatum collected from a cat. Semichon's acetocarmine stained.

Transverse section of Fasciola hepatica.

Transverse section of Fasciola hepatica showing multiple intestinal lumen.

Eurytrema pancreaticum collected from a cattle.Semichon's acetocarmine stained.

Clonorchis sinensis collected from a naturally infected cat. Semichon's acetocarmine stained.

C. sinensis collected from a naturally infected cat. Semichon's acetocarmine stained.

Plagiorchis muris collected from a naturally infected cat. Semichon's acetocarmine stained.

P. muris collected from a naturally infected rat. Semichon's acetocarmine stained.

The immature worm of Paragonimus westermani from a naturally infected cat.

P. iloktsuenensis recovered from an experimental cat. Semichon's acetocarmine stained.

Adult male of Ascaris lumbricoides.

Adult female of A. lumbricoides.

Mating adults of A. lumbricoides.

Male A. lumbricoides from the stomach of Korean woman.

Three scolices of D. latum from human.

Mature or gravid proglottid of D. latum from human. Semichon's acetocarmine stained.

Mature or gravid proglottid of D. latum from human. Semichon's acetocarmine stained.

Mature or gravid proglottids of D. latum from a human case, Semichon's acetocarmine stained.

Sectional view of D. latum mature proglottid, H&E stained.

SEM view of the scolex of Spirometra erinacei, lateral side.

SEM view of the scolex of Spirometra erinacei, frontal view.

SEM view of the microtriches on the anterior portion of scolex.

SEM view of the microtriches in the mid-portion of scolex.

SEM view of the microtriches on the neck portion and the lower proglottids.

Gravid proglottid of Spirometra erinacei, Semichon's acetocarmine stained.

Microphalloides japonicus adult from an experimental rat.

Exorchis sp. from a catfish.

Exorchis sp. from a catfish.

Pseudexorchis major from a catfish.

Pseudexorchis major from a catfish.

Carassotrema koreanum from Culter brevicauda.