Branchiobdellida

Branchiobdellida
	Branchiobdellids on the claw of a signal crayfish
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Annelida
Clade:	Pleistoannelida
Clade:	Sedentaria
Class:	Clitellata
Order:	Branchiobdellida

Branchiobdellida is an order of freshwater leech-like clitellates that are obligate ectosymbionts or ectoparasites, mostly of astacoidean crayfish.^[1] They are found in the Northern Hemisphere and have a holarctic distribution in East Asia, the Euro-Mediterranean region and North and Central America, with the greatest species diversity being in North and Central America.^[2]

^ Gelder, Stuart R.; Gagnon, Nicole L.; Nelson, Kerri (2002). "Taxonomic Considerations and Distribution of the Branchiobdellida (Annelida: Clitellata) on the North American Continent". Northeastern Naturalist. 9 (4): 451–468. doi:10.1656/1092-6194(2002)009[0451:TCADOT]2.0.CO;2. JSTOR 3858556.
^ Thorp, James H.; Rogers, D. Christopher (2014). Thorp and Covich's Freshwater Invertebrates: Ecology and General Biology. Elsevier. pp. 551–563. ISBN 978-0-12-385027-0.

[1] Gelder, Stuart R.; Gagnon, Nicole L.; Nelson, Kerri (2002). "Taxonomic Considerations and Distribution of the Branchiobdellida (Annelida: Clitellata) on the North American Continent". Northeastern Naturalist. 9 (4): 451–468. doi:10.1656/1092-6194(2002)009[0451:TCADOT]2.0.CO;2. JSTOR 3858556.

[Thorp-2] Thorp, James H.; Rogers, D. Christopher (2014). Thorp and Covich's Freshwater Invertebrates: Ecology and General Biology. Elsevier. pp. 551–563. ISBN 978-0-12-385027-0.

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