Prosadenoporus agricola (Willemoes-Suhm)

Bermudas Terrestrial Smiling Worm (Prosadenoporus agricola 

The Bermudas Terrestrial Smiling Worm was described in 1874, it was restricted to the Bermudas Islands.

The milky-white, brownish or greenish colored species was commonly found along the shores of mangrove swamps, under stones and logs on moist, silty soil or inside earthworm burrows above the high-water mark and, during the wet season, also on adjacent hillsides.

The former habitat of this species is now completely lost due to commercial development.
Some very few last survivors – the last of their kind – were found during intensive field searches in 1966, since then the species is considered extinct. [1]

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Depiction from: ‘A. E. Verrill: The Bermuda islands: an account of their scenery, climate, productions, physiography, natural history and geology, with sketches of their discovery and early history, and the changes in their flora and fauna due to man. New Haven, Conn.: the author 1902’

(public domain)

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References:  

[1] Svetlana A. Maslakova; Jon L. Norenburg: Revision of the smiling worms, genera Prosadenoporus Burger, 1890 and Pantinonemertes Moore and Gibson, 1981 and description of a new species Prosadenoporus floridensis sp. nov. (Prosorhochmidae; Hoplonemertea; Nemertea) from Florida and Belize. Journal of Natural History 42: 25-26. 2008

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edited: 03.11.2020