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''Haemohormidium'' is a genus of parasitic protozoa in the phylum Apicomplexia. They have two hosts in their life cycle: the vertebrate hosts are fish and the invertebrate vectors are leeches. ''Haemohormidium cotti'' is the type species. ==History== The genus was created in 1910 by Henry who described ''Haemohormidium cotti'' in short spined sea scorpion (''Myxocephalus scorpius'') and the long spined sea scorpion (''Taurulus bubalis''). Its nature was unclear until the electron microscopic studies revealed its relationship to the Apicomplexia. Henry in 1913 abandoned the name but the genus was validated by Wenyon in 1926. The species in the genus ''Babesiosoma'' were initially incorporated into this genus in 1969 but have subsequently been demerged. Some authors consider this genus to be synonymous with ''Dactylosoma''.〔Paperna I (1981) ''Dactylosoma hannesi'' n. sp. (Dactylosomatidae, Piroplasmia) found in the blood of grey mullets (Mugilidae) from South Africa. J Protozool 28: 486–491〕 Henry also in 1910 described a second genus - ''Haematractidium'': this is now considered synonymous with ''Haemohormidium''. It seems that the taxonomy of this group may yet undergo further revision. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Haemohormidium」の詳細全文を読む スポンサード リンク
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