Oxypolella hiebertae, Kajihara & Abukawa & Chernyshev, 2022

Kajihara, Hiroshi, Abukawa, Shushi & Chernyshev, Alexei V., 2022, Exploring the basal topology of the heteronemertean tree of life: establishment of a new family, along with turbotaxonomy of Valenciniidae (Nemertea: Pilidiophora: Heteronemertea), Zoological Journal of the Linnean Society 196, pp. 503-548 : 519

publication ID

https://doi.org/ 10.1093/zoolinnean/zlac015

publication LSID

lsid:zoobank.org:pub:78C56409-FCCF-4116-8D8C-FF66B247C56C

DOI

https://doi.org/10.5281/zenodo.7036915

persistent identifier

https://treatment.plazi.org/id/038A8132-EE7B-ED56-FF14-CC4EFBA8FEEA

treatment provided by

Plazi

scientific name

Oxypolella hiebertae
status

sp. nov.

OXYPOLELLA HIEBERTAE SP. NOV.

( FIG. 2B View Figure 2 )

Oxypolellinae gen. sp.: Hiebert, 2016: 318.

Zoobank registration: u r n: l s i d: z o o b a n k. org:act: 1F5D91AE-5C57-4E9A-BE20-C05D2DA554B4.

Material examined: Four specimens, all collected by A. V. Chernyshev. Holotype, MIMB 42256 View Materials , 23 May 2007, among dead corals, 2–4 m depth, Cù-Lao Ré Island (15°23′N, 109°05′E), Vietnam GoogleMaps . Other material: two specimens, 19 May 2007, among dead corals, 5–7 m depth, Bach Long Vi Island (20°09′N, 107°44′E), Vietnam GoogleMaps ; one specimen, 22 May 2010, intertidal, among calcareous red algae, Van Phong Bay (12°40′N, 109°20′E), Vietnam GoogleMaps .

Sequence: From the holotype; KU748595 View Materials , 16S (524 bp), determined by Hiebert (2016) as Oxypolellinae sp. TCH-2017 isolate E4H7.

Etymology: The new specific name, a noun in the genitive case, honours Dr Terra C. Hiebert for her outstanding contribution to nemertean systematics.

Description: Body soft, 2–4 cm long, 1 mm wide, dorsally yellow or lemon yellow, ventrally pale yellowish; head long, narrow, with two thin transverse furrows in front of mouth; eyes and caudal cirrus absent ( Fig. 2B View Figure 2 ). Rhynchopore ventral. Mouth small, pit-like. Rhynchocoel extending length of body. Two regions detected in proboscis of live specimens. Frontal organ present (from CSLSM observation; data not shown). Body wall with two dorsal nerves (from CSLSM observation; data not shown). Living worms with distinctive, permanent mucous tube.

Distribution: Known only from Vietnam (present study).

Remarks: Oxypolella hiebertae is the sixth member described in the genus (cf. Cantell, 2005). It resembles the most recently described species, Oxypolella banyulensis Cantell, 2005 from the Mediterranean, in having yellowish body colour. Oxypolella hiebertae differs from O. banyulensis in having cephalic furrows as well as in the body coloration; in O. hiebertae , the body is uniformly yellow, whereas in O. banyulensis , the anterior third of the body is white and the posterior two-thirds yellowish white.

V

Royal British Columbia Museum - Herbarium

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