Chtonobdella

Chtonobdella
Chtonobdella limbata
Scientific classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Annelida
Clade: Pleistoannelida
Clade: Sedentaria
Class: Clitellata
Subclass: Hirudinea
Order: Arhynchobdellida
Family: Haemadipsidae
Genus:
Grube, 1866
Type species
Hirudo limbata
Grube, 1866
Synonyms[1]
  • Amicibdella Richardson, 1974
  • Anphilaemon Richardson, 1979
  • Chthnobdella Vaillant
  • Chthonobdella Blanchard, 1888
  • Geobdella Whitman, 1886
  • Micobdella Richardson, 1974
  • Moquinia Blanchard, 1888
  • Quaesitobdella Richardson, 1975

Chtonobdella is a genus of land leeches belonging to the family Haemadipsidae,[1] erected by Adolph Grube in 1866.[2] Species are mostly found in Australia and New Guinea, with isolated records from other Pacific islands and Madagascar.[1]

Taxonomy and description

The name Chtonobdella is derived from two Greek elements: chton, meaning 'ground' or 'land', and bdella, meaning 'leech':[3] thus similar to other genera in the family Haemadipsidae, the jawed land leeches. In his original description of the type species, Adolph Grube used the name Hirudo limbata, but suggested the new genus name Chtonobdella.[2] Confusingly, Grube later referred to the species again as H. limbata and other scholars retained the name;[4] both this species and C. fallax, from Madagascar, have also been placed in the related genus Haemadipsa.[5]

As with many other taxa, Tessler et al. (2016)[3] noted that reliance on "externally visible characters, remains in conflict with phylogenetic relationships." They proposed that the genus Chtonobdella be revised to include "all duognathous leech species previously distributed in 31, mostly monotypic genera"; all species in the obsolete genus Geobdella were moved here. They used DNA sequencing and microcomputed tomography to establish monophyly in this genus and describe a new species C. tanae (the first description using this technology).[3] Duognathous means having two jaws, opening a V-shaped wound on their victim's skin;[6] other genera may have three jaws, making a Y-shaped cut.

Species

As of April 2025, the Global Biodiversity Information Facility[1] includes:

  1. Chtonobdella australiensis (Lambert, 1899)
  2. Chtonobdella bilineata (Richardson, 1975) - Australia
  3. Chtonobdella fallax (Blanchard, 1917) - Madagascar
  4. Chtonobdella limbata (Grube, 1876) - eastern Australia
  5. Chtonobdella nigra (Richardson, 1974) - Australia
  6. Chtonobdella tanae Tessler, Barrio, Borda, Rood-Goldman, Hill & Siddall, 2016[3] - eastern Australia
  7. Chtonobdella whitmani (Lambert, 1899) – Australia and Pacific Islands

References

  1. ^ a b c d "Chtonobdella Grube, 1866". Global Biodiversity Information Facility. Retrieved 26 April 2025.
  2. ^ a b Grube AE (1866) Landblutegeln asu Südaustralien. Jahres-Bericht der Schlesischen Gesellschaft für Vaterländische Cultur 43: 66.
  3. ^ a b c d Tessler, Michael; Barrio, Amalie; Borda, Elizabeth; Rood-Goldman, Rebecca; Hill, Morgan; Siddall, Mark E. (2016). "Description of a soft-bodied invertebrate with microcomputed tomography and revision of the genus Chtonobdella (Hirudinea: Haemadipsidae)". Zoologica Scripta. 45 (5): 552–565. doi:10.1111/zsc.12165. ISSN 1463-6409. S2CID 86322883.
  4. ^ Richardson, Lawrence R. (1967). "An Annotated List of Australian Leeches". Proceedings of the Linnean Society of New South Wales. Vol. v.92=no.413-415 (1967-1968). Sydney: Linnean Society of New South Wales.
  5. ^ Blanchard R (1917), "Monographie des Haemadipsines (Sangeuses terrestrs)", Bulletin de la Societe de pathologie exotique, vol. t.10 (1917), Paris: Masson, retrieved 22 March 2025
  6. ^ Bilej, Martin; Cooper, Edwin L.; Roch, P. (1993-12-16). Immunology of Annelids. CRC Press. p. 82. ISBN 978-0-8493-4909-6.