Hemithyone semperi ( Bell, 1884 )

O’Loughlin, P. Mark, Harding 1, Caroline & Paulay, Gustav, 2016, The sea cucumbers of Camden Sound in northwest Australia, including four new species (Echinodermata: Holothuroidea), Memoirs of Museum Victoria 75, pp. 7-52 : 35

publication ID	https://doi.org/ 10.24199/j.mmv.2016.75.02
publication LSID	urn:lsid:zoobank.org:pub:A7209365-ACCA-4E42-A11F-D211FF09EFD8
DOI	https://doi.org/10.5281/zenodo.8076106
persistent identifier	https://treatment.plazi.org/id/DC3487A2-BC07-FFE0-2746-A41DFA62B2E1
treatment provided by	Felipe
scientific name	Hemithyone semperi ( Bell, 1884 )
status

Treatment

Hemithyone semperi ( Bell, 1884) View in CoL View at ENA

Material examined. Northwest Western Australia, Kimberley Region , Camden Sound, WAMSI 1.1 .1, RV Solander , sled, site no SOL_56, WAM station no 20, barcode 10001531, from -15.376537 124.192773 35 m to -15.376196 124.192071 35 m, 19 Mar 2015, WAM Z89055 View Materials GoogleMaps (1).

Remarks. We have retained Hemithyone semperi ( Bell, 1884) in family Thyonidae and subfamily Thyoninae , but with major reservations. The species does have a composite calcareous ring, but the tube feet are radial and the species lacks table and cup ossicles and has predominantly very open fenestrated ellipsoids in the body wall. Smirnov (2012) remarked “it is possible that Hemithyone Pawson, 1963 does not belong to Thyonidae ”. We await generic evidence for a review of its higher taxon referral.