Cordioniscus stebbingi
(Patience, 1907)
Cordioniscus stebbingi is a small in the Styloniscidae. It has been recorded from Europe, Northern Asia (excluding China), and North America. Two are recognized: C. s. stebbingi and C. s. boettgeri. The species is rarely observed, with very few documented occurrences.
Pronunciation
How to pronounce Cordioniscus stebbingi: /kɔrdiːˈɒnɪskəs stɛˈbɪŋɡiː/
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Identification
Distinguished from similar woodlice by its placement in Styloniscidae, a characterized by specific antennal and uropod . Separation from congeneric requires examination of pleopodal endopodites and other fine structural details not visible without magnification. The two differ in subtle morphological traits described by Verhoeff.
Distribution
Europe; Northern Asia (excluding China); North America. GBIF records indicate presence in the Azores (São Miguel) and Brazil (Rio de Janeiro, São Paulo), suggesting possible introductions or wider distribution than initially reported.
Similar Taxa
- Other Cordioniscus speciesCongeneric require detailed morphological examination of pleopodal structures for reliable separation; external appearance often insufficient.
- Trichoniscidae family membersPreviously placed in Trichoniscidae by some sources; Styloniscidae separation based on antennal segmentation and uropod .
More Details
Taxonomic note
placement has varied between sources: Wikipedia lists Trichoniscidae, while GBIF, iNaturalist, and Catalogue of Life place it in Styloniscidae. The latter reflects more recent taxonomic treatments.
Subspecies
Cordioniscus stebbingi boettgeri Verhoeff, 1929 and Cordioniscus stebbingi stebbingi are the two recognized , differing in minor morphological characters.
Observation rarity
Only 3 observations recorded on iNaturalist as of source date, indicating either genuine rarity, cryptic habits, or under-sampling of its .