Orobdella is a genus of leeches. It is the only genus in the monotypic family Orobdellidae.[1][2][3] They are large annelids, with the largest species (Orobdella octonaria) exceeding 20 cm (7.9 in) in length, but some are much smaller: mature individuals of Orobdella koikei can measure only 4 cm (1.6 in). They inhabit the banks of mountain streams and feed on earthworms.[2][3] The majority of species are endemic to Japan; two species are known from Taiwan, one from Korea, and one from Russian Far East.[4]
| Orobdella | |
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| Dorsal view of Orobdella masaakikuroiwai (top) and a live animal under a stone (bottom) | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Annelida |
| Clade: | Pleistoannelida |
| Clade: | Sedentaria |
| Class: | Clitellata |
| Subclass: | Hirudinea |
| Order: | Arhynchobdellida |
| Suborder: | Erpobdelliformes |
| Family: | Orobdellidae Nakano, Ramlah and Hikida, 2012 |
| Genus: | Orobdella Oka, 1895 |
Species
editOrobdella contains 21 species,[4] including the following:[2][3][4]
- Orobdella dolichopharynx Nakano, 2011
- Orobdella esulcata Nakano, 2010
- Orobdella ghilarovi Nakano and Prozorova, 2019
- Orobdella ijimai Oka, 1895
- Orobdella kawakatsuorum Richardson, 1975
- Orobdella koikei Nakano, 2012
- Orobdella ketagalan Nakano and Lai, 2012
- Orobdella koikei Nakano, 2012
- Orobdella masaakikuroiwai Nakano, 2014
- Orobdella mononoke Nakano, 2012
- Orobdella octonaria Oka, 1895
- Orobdella shimadae Nakano, 2011
- Orobdella tsushimensis Nakano, 2011
- Orobdella whitmani Oka, 1895
References
edit- ^ "Orobdellidae". Global Biodiversity Information Facility. Retrieved 4 July 2021.
- ^ a b c Nakano, Takafumi (2014). "A new quadrannulate species of Orobdella (Hirudinida, Arhynchobdellida, Orobdellidae) from central Honshu, Japan". ZooKeys (445): 57–76. doi:10.3897/zookeys.445.7999. PMC 4205740. PMID 25349507.
- ^ a b c Nakano, Takafumi & Lai, Yi-Te (2012). "A new species of Orobdella (Hirudinida, Arhynchobdellida, Orobdellidae) from Taipei, Taiwan". ZooKeys (207): 49–63. Bibcode:2012ZooK..207...49N. doi:10.3897/zookeys.207.3334. PMC 3409684. PMID 22855640.
- ^ a b c Nakano, Takafumi & Prozorova, Larisa (2019). "A new species of Orobdella (Hirudinida: Arhynchobdellida: Orobdellidae) from Primorye Territory, Russian Far East". Journal of Natural History. 53 (5–6): 351–364. doi:10.1080/00222933.2019.1593539. hdl:2433/241021. S2CID 150030196.