Definition
Tuoba is a genus of soil‑dwelling centipedes belonging to the family Geophilidae (order Geophilomorpha). The genus comprises seventeen recognized species.
Overview
The genus was first described by American myriapodologist Ralph Vary Chamberlin in 1920. Species of Tuoba are distributed in coastal regions and islands across the Mediterranean, Atlantic, Pacific, and Indian oceans. They are part of the diverse myriapod fauna that inhabits leaf litter, soil, and under stones in these habitats.
Etymology / Origin
The precise origin and meaning of the generic name Tuoba have not been documented in the primary taxonomic literature. Accurate information on the etymology is not confirmed.
Characteristics
- Morphology: Members of Tuoba possess short forcipules with a denticle at the base of each tarsungulum, anterior trunk metasternites featuring an anterior medial socket and a posterior transverse band of pores, and leg claws with an elongated basal spine. The coxal organs open into a single ventral pit on each coxopleuron.
- Size and Leg Count: Individuals range from about 2 cm to 5 cm in length and exhibit between 39 and 73 pairs of legs, depending on the species. The Japanese species Tuoba japonicus is notable for its small size (maximum length 17 mm) and 41–51 leg pairs, while Tuoba xylophaga from New Zealand can reach 45 mm with 57–67 leg pairs. An undescribed species from Prime Seal Island records the maximum known 73 leg pairs for the genus.
- Taxonomic Details: The type species is Tuoba curticeps Chamberlin, 1920. Synonymous genera include Honuaphilus (Chamberlin, 1926) and Nesogeophilus (Verhoeff, 1924).
Related Topics
- Family Geophilidae
- Order Geophilomorpha
- Class Chilopoda (centipedes)
- Ralph Vary Chamberlin (taxonomist)
- Soil arthropod ecology
- Biodiversity of coastal island invertebrates