The WormLearn Images List

Protozoa | Nematodes | Flukes | Tapeworms | Insects | Arachnids

Protozoa

Amoebae

 Entamoeba histolytica
Cyst and Trophozoite (Haematoxylin stained)
In section of Intestine
Entamoeba coli
Cyst and Trophozoite (Haematoxylin stained)
Trophozoite (Trichrome stained)
Entamoeba hartmanni Cyst and Trophozoite (Haematoxylin stained)

Endolimax nana Cyst and Trophozoite (Haematoxylin stained)

Iodomoeba butschlii Cyst and Trophozoite (Haematoxylin stained)

Blastocystis hominis Vacuolated Forms (Trichrome stained)


Flagellates

Intestinal Flagellates

Giardia Intestinalis
Cyst and Trophozoite (Haematoxylin stained)
Cysts (Unstained and Trichrome stained)
In section of Intestine
Chilomastix mesnili Cyst and Trophozoite (Haematoxylin stained)

Dientamoeba fragilis Trophozoite (Haematoxylin stained)

Flagellates from Other Body Sites

Trichomonas vaginalis Trophozoites

Haemoflagellates

Trypanosoma cruzi
Trypomastigote in Peripheral Blood (Giemsa)
Amastigotes in Section of Cardiac Muscle
Promastigotes
Leishmania donovani
Amastigotes in Tissue Smear (Giemsa)
Amastigotes in Section of Spleen
Promastigotes

Ciliates

Balantidium coli
Cyst and Trophozoite
In Section of Intestine

Sporozoans

Malaria

Plasmodium falciparum
Trophozoites in Peripheral Blood (Giemsa)
Gametocyte in Peripheral Blood (Giemsa)
Peripheral Blood from Moribund Patient (Giemsa)
Cerebral Malaria (H&E)
Plasmodium malariae
Trophozoites in Peripheral Blood (Giemsa)
Schizont and Gametocyte in Peripheral Blood (Giemsa)
Plasmodium ovale
Trophozoites in Peripheral Blood (Giemsa)
Plasmodium vivax
Trophozoites in Peripheral Blood (Giemsa)
Schizont and Gametocyte in Peripheral Blood (Giemsa)
Trophozoite, Schizont and Gametocyte in Peripheral Blood (Giemsa)
Exflagellation (Giemsa)
Miscellaneous Malaria
Malarial Pigment in Section of Liver (H&E)
Pre-erythrocytic Stage in Section of Liver (H&E)
Oocysts on wall of Mosquito Stomach
Other Sporozoans

Cryptosporidium sp. Oocysts (Unstained and Modified Kinyoun's Stain)


Sarcocystis lindemanni In Section of Tongue Muscle (H&E)


Microsporidia

Enterocytozoan bineuzii (10x Trichrome Stain)

Pleistophora sp. (10x Trichrome Stain)


Organisms of Disputed Classification

Pneumocystis carinii In Bronchial Wash (Toluidine Blue)
Note : Pneumocystis carinii, while mentioned in many parasitological texts, is now conventionally identified as a fungus.

Nematodes

Intestinal Nematodes

 Ascaris lumbricoides
Adult Male and Female
Eggs (Fertilised and Unfertilised)
Larva in Section of Lung (H&E)
Enterobius vermicularis
Adult Male and Female
Egg
In Section of Appendix (H&E)
Trichuris trichiura
Adult Male and Female
Eggs (Unstained and Stained - Hx)
In Section of Appendix (H&E)
Hookworms

Eggs

Filariform Larvae

Ancylostoma duodenale - Adult Male and Female

Necator americanus
Adult Male and Female
Adult Female - Anterior and Posterior
Adult Male - Posterior
Strongyloides stercoralis - Rhabditiform Larva

Filarial Nematodes

Wuchereria bancrofti
Microfilaria in peripheral blood
Adults in Section of Lymph Node (H&E)
Onchocerca volvulus - Adults in Section of Tumour (H&E)

Nematodes from Other Body Sites

Trichinella spiralis - Larvae in Muscle (Section and Muscle Press)

Zoonotic Nematodes

Syphacia obvelata - Eggs on Perianal Tape Smear from Mouse

Ancylostoma brasiliense - Adult Male and Female

Dirofilaria immitis - Microfilaria in Peripheral Blood (Dog) and in Section of Lung (H&E)

Angiostrongylus cantonensis - In Section (H&E)

Capillaria hepatica - Eggs in Section of Mouse Liver (H&E)

Flukes

Intestinal Flukes

 Fasciolopsis buski
Adult Fluke - Anterior End
Egg

Tissue Flukes

Fasciola hepatica
Adult Fluke - Anterior End
Adult in section of Liver (H&E)
Egg
Miracidium
Redia
Cercaria
Fasciola giganticaAdult Fluke - Anterior End

Clonorchis sinensis
Adult Flukes - Carmine and Haematoxylin Stains
Adults in section of Liver (H&E)
Eggs
Paragonimus westermani
Adult Fluke
Adult in section of Lung (H&E)
Egg

Schistosomes

Schistosoma mansoni
Adult Male and Female
Adult Male and Femalein copula
Eggs
Miracidium
In Snail Tissue (H&E)
Cercaria
Schistosoma haemtobium
Adult Male
Eggs
Schistosoma japonicum
Adult Male and Female
Adult Male and Femalein copula
Eggs
Eggsin section of Tissue (H&E)

Zoonotic Flukes

Echinostoma sp.
Adult Fluke
Redia and Cercaria
Heterophyes heterophyes
Adult Fluke
Eggs

Tapeworms

Intestinal Tapeworms

 Taenia spp. Egg from faeces

Taenia saginata Gravid Proglottid

Taenia solium
Scolex and Gravid Proglottid
Cysticercus - Whole and in section of Muscle (H&E)

Diphyllobothrium latum
Scolex and Gravid Proglottid
Egg from faeces

Hymenolepis diminuta
Scolex and Gravid Proglottid
Egg from faeces

Hymenolepis nana
Adult Tapeworm
Egg from faeces
Cysticercoids from mouse intestine

Dipylidium caninum
Scolex and Gravid Proglottid
Egg packet from dog faeces


Tissue Tapeworms

 Echinococcus granulosus
Adult Tapeworm
Cyst in section of lung (H&E)
Hydatid sand
Egg from dog faeces

Spargana in section of muscle (H&E)

Insects

Order Anoplura : The Lice

 Pediculis (humanus) capitus adult and egg (nit) on hair shaft


Phthirus pubis adult


Order Siphonaptera : The Fleas

 Ctenocephalides canis adult


Ctenocephalides felis
Adult Male and Female
Egg and Larva

Pulex irritans adult


Xenopsylla cheopis adult


Order Hemiptera : The True Bugs

 Cimex lectularius adult


Order Diptera : The Flies

 Anopheles spp.
Adult Male and Female
Adult Male and Female (Heads only)
Larva

Culex spp.
Adult Male and Female
Egg Raft and Larva
Pupa

Glossina spp. - Detail of Wing


Simulium spp. - Adult


Parasarcophaga crassipalpis Adult

Stigmata - Posterior Breathing Spiracles from Fly Larvae


Arachnids

Mites

 Sarcoptes scabei Adult


Demodex folliculorum spp.
Adult
Adults in section of Dog Skin (H&E)

Dermanyssus gallinae Adult


Ticks

 Argas persicus Adult


Amblyomma cajenense Adult


Dermacentor andersoni Adult


Rhipicephalus sanguineus Adult



This page Copyright 1997 Dr Peter Darben.
Last Updated 19.9.2000