Tridentodillo
| Tridentodillo | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Clade: | Pancrustacea |
| Class: | Malacostraca |
| Order: | Isopoda |
| Suborder: | Oniscidea |
| Family: | Armadillidae |
| Genus: | Tridentodillo Jackson, 1933[1] |
| Species: | T. squamosus |
| Binomial name | |
| Tridentodillo squamosus Jackson, 1933[1] | |
Tridentodillo is a genus of woodlice belonging to the family Armadillidae. This genus was described in 1933 by Harold Gordon Jackson. The type specimen for this species is Tridentodillo squamosus from the Marquesas Islands in French Polynesia, and it is the only species in this genus.[2]
Description
[edit]In the genus Tridentodillo, the edge of the frontal lamina (head shield) is layered and strongly raised above the thorax, forming a broad triangular shape in the middle. The epimera (side plate) of the first pereon segment is thin and unbroken. On the underside of this segment, set in from the side edge, there is a long, deep fold that runs along the length of the segment and ends at the rear in a prominent, semicircular flap. The movable flap on the second pereon segment is tooth-shaped and extends well beyond the rear edge of the segment. The front and rear corners of the first three epimera are reduced, giving them a sharp outer edge. The remaining exposed segments have roughly square outlines and do not extend outward.
The head and each pereonal segment have three very long, slender, curved spines along their rear edges, while the abdominal segments lack spines entirely.[2]
Distribution
[edit]Tridentodillo isopods have only been found on isolated islands in the Marquesas Islands of French Polynesia[3][4]
References
[edit]- 1 2 "Tridentodillo Jackson, 1933". Global Biodiversity Information Facility. Retrieved 12 January 2026.
- 1 2 Jackson, Harold Gordon (1933). "Marquesan terrestrial Isopoda" (PDF). Bernice P. Bishop Museum Bulletin. 114: 145–162.
- ↑ Jackson, Harold Gordon (1941). "Check-list of the Terrestrial and Fresh-water Isopoda of Oceania". Smithsonian Miscellaneous Collections. 99 (8).
- ↑ Ramage, Thibault (2017-06-30). "Checklist of the terrestrial and freshwater arthropods of French Polynesia (Chelicerata; Myriapoda; Crustacea; Hexapoda)". Zoosystema. 39 (2): 213. doi:10.5252/z2017n2a3. ISSN 1280-9551.