Apionsoma trichocephalus Sluiter, 1902

Adrianov, Andrey V. & Maiorova, Anastassya S., 2012, Peanut worms of the phylum Sipuncula from the Nha Trang Bay (South China Sea) with a key to species, Zootaxa 3166, pp. 41-58 : 50-51

publication ID

https://doi.org/ 10.5281/zenodo.279772

DOI

https://doi.org/10.5281/zenodo.6166382

persistent identifier

https://treatment.plazi.org/id/7978F031-FF82-AB1E-FF46-F8E80F82FEA8

treatment provided by

Plazi

scientific name

Apionsoma trichocephalus Sluiter, 1902
status

 

Apionsoma trichocephalus Sluiter, 1902 View in CoL

( Fig. 4 View FIGURE 4. A E–F)

Material. Nha Trang Bay: Diamond Bay, intertidal, coral rubble, 1 specimen.

Description. Trunk spindle-shaped, 3–4 mm long, 1 mm wide; very thin introvert 10 X longer than the length of the trunk. Fold-like dorsal arc with 6 minute rudimentary tentacles, usually invisible in the dissecting microscope. Hooks scanty, barely visible, without accessory combs of spinelets, arranged in one incomplete ring.

Discussion. This species differs from other representatives of the subgenus Apionsoma by having scanty hooks lacking spinelets and a reduced tentacular apparatus.

Apionsoma trichocephalus is a circumtropical species, known from the Atlantic, Indian and Pacific Oceans. It inhabits sandy and muddy sediment from the intertidal to bathyal depths, and has been recorded in the West Pacific from New Zealand to Japan.

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