Symplectoscyphus ralphae Vervoort, 1993

Galea, Horia R. & Schuchert, Peter, 2019, Some thecate hydroids (Cnidaria: Hydrozoa) from off New Caledonia collected during KANACONO and KANADEEP expeditions of the French Tropical Deep-Sea Benthos Program, European Journal of Taxonomy 562, pp. 1-70 : 51-52

publication ID	https://doi.org/ 10.5852/ejt.2019.562
publication LSID	lsid:zoobank.org:pub:6567F621-7A92-4D1A-8902-A1E76325AF94
DOI	https://doi.org/10.5281/zenodo.3475339
persistent identifier	https://treatment.plazi.org/id/03C0D256-AD7C-6110-FDCB-A24C5F1FFC9F
treatment provided by	Plazi
scientific name	Symplectoscyphus ralphae Vervoort, 1993
status

Treatment

Symplectoscyphus ralphae Vervoort, 1993: 270 , figs 65E–F, 66A–C.

Symplectoscyphus ralphae – Galea 2016: 45 View Cited Treatment , fig. 10M–V.

Material examined

PACIFIC OCEAN • male colony with stems up to 1.4 cm high, on axis of antipatharian; off New Caledonia, stn DW4714; 22°49′ S, 167°25′ E; 394–443 m; 18 Aug. 2016; KANACONO leg.; MNHN- IK-2015-395 GoogleMaps • two female colonies, 2.6 and 3.7 cm high, respectively; off New Caledonia, stn DW4784; 22°51′ S, 167°44′ E; 310–322 m; 29 Aug. 2016; KANACONO leg.; MNHN-IK-2015-396 GoogleMaps • a colony composed of several stems up to 1.4 cm high, one of them with a female gonotheca; off New Caledonia, stn DW4715; 22°50′ S, 167°27′ E; 424 m; 18 Aug. 2016; KANACONO leg.; MNHN-IK-2015-397 GoogleMaps • a stem 2.5 cm high with male gonothecae; off New Caledonia, stn CP4675; 22°50′ S, 167°30′ E; 350– 366 m; 13 Aug. 2016; KANACONO leg.; used as a whole for DNA extraction, DNA 1392; MHNG- INVE- 120853 GoogleMaps • male and female colonies with stems up to 4 cm high, on different substrates; off New Caledonia, stn CP4674; 22°48′ S, 167°29′ E; 311– 302 m; 13 Aug. 2016; KANACONO leg.; MNHN- IK-2015-398 GoogleMaps • a profuse male colony, with stems up to 1.8 cm high; off New Caledonia, stn DW4720; 22°50′ S, 167°11′ E; 374–400 m; 19 Aug. 2016; KANACONO leg.; a fertile stem was used for DNA extraction, DNA 1391; voucher MHNG-INVE- 120852; barcode identifier MK 073105 View Materials ; MNHN- IK-2015-469 GoogleMaps .

Remarks

In view of the present material, always fertile, it can be now stated that the gonothecae are sexually dimorphic, as suspected earlier by Galea (2016). Female gonothecae are longer and larger, and possess a larger number of transverse ridges, and a comparatively wider terminal funnel.

Distribution

New Caledonia ( Vervoort 1993; present study), Norfolk Ridge ( Galea 2016).