Sertularella helenae 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: 36-37

publication ID

https://doi.org/10.5852/ejt.2019.562

publication LSID

lsid:zoobank.org:pub:6567F621-7A92-4D1A-8902-A1E76325AF94

DOI

http://doi.org/10.5281/zenodo.3475325

persistent identifier

http://treatment.plazi.org/id/03C0D256-AD6D-6107-FD91-A6B4588EFC1F

treatment provided by

Plazi

scientific name

Sertularella helenae Vervoort, 1993
status

 

Sertularella helenae Vervoort, 1993 

Sertularella helenae Vervoort, 1993: 218  , fig. 47B–E.

Sertularella helenae – Galea 2016: 27  , fig. 8H.

Material examined

PACIFIC OCEAN • three colonies, 1.8× 2.5 cm, 3.4× 2.5 cm, and 2.8× 2.4 cm, respectively, all without gonothecae; off New Caledonia, stn DW4764; 23°20′ S, 168°15′ E; 350–356 m; 27 Aug. 2016; KANACONO leg.; one colony fragment was used for DNA extraction, DNA 1377; voucher MHNG-INVE- 120838; MNHN-IK-2015-409GoogleMaps  four colonies, 1.5 × 0.9 cm, 2.1× 1.2 cm, 2.5 × 2.2 cm, and 3.8× 1.7 cm, respectively, without gonothecae; off New Caledonia, stn DW4744; 22°55′ S, 167°37′ E; 310– 290 m; 23 Aug. 2016; KANACONO leg.; MNHN-IK-2015-410GoogleMaps  a colony, 3× 4 cm, composed of three stems whose branches anastomose so as to form a single flabellate colony, without gonothecae; off New Caledonia, stn DW4720; 22°50′ S, 167°11′ E; 374–400 m; 19 Aug. 2016; KANACONO leg.; MNHN-IK-2015-411GoogleMaps  three colonies, 1.3× 1.5 cm, 2.1× 1.7 cm, and 2.5 × 2.2 cm, respectively, without gonothecae; off New Caledonia, stn DW4783; 22°56′ S, 167°48′ E; 385–395 m; 29 Aug. 2016; KANACONO leg.; MNHN-IK-2015-412GoogleMaps  two colonies, 2.5× 2 cm and 1.8× 1.5 cm, respectively, without gonothecae; off New Caledonia, stn DW4725; 22°41′ S, 167°05′ E; 240–256 m; 20 Aug. 2016; KANACONO leg.; MNHN-IK-2015-413GoogleMaps  a colony, 3× 2.8 cm, without gonothecae; off New Caledonia, stn DW4731; 22°31′ S, 167°35′ E; 460– 457 m; 22 Aug. 2016; KANACONO leg.; MNHN-IK-2015-414GoogleMaps  nine colonies without gonothecae, largest 3× 3.2 cm; off New Caledonia, stn CP4658; 22°42′ S, 167°13′ E; 303–315 m; 10 Aug. 2016; KANACONO leg.; MNHN-IK-2015-415GoogleMaps  three colonies without gonothecae, 1.3× 1.5 cm, 1.5× 1.6 cm, and 2.5 × 2.5 cm, respectively; off New Caledonia, stn DW4743; 22°52′ S, 167°34′ E; 380– 340 m; 23 Aug. 2016; KANACONO leg.; MNHN- IK-2015-416GoogleMaps  numerous colonies and fragments, all without gonothecae, largest 3 × 3 cm; off New Caledonia, stn DW4651; 22°42′ S, 167°14′ E; 295–300 m; 09 Aug. 2016; KANACONO leg.; one colony was used for DNA extraction, DNA 1378; voucher MHNG-INVE- 120839; barcode identification MK 073097View Materials; MNHN-IK-2015-417GoogleMaps  a 2.5× 2.5 cm, colony without gonothecae; off New Caledonia, stn CP4675; 22°50′ S, 167°30′ E; 350–366 m; 13 Aug. 2016; KANACONO leg.; whole colony used for DNA extraction, DNA1379; barcode identification MK 073098View Materials; MHNG-INVE- 120840GoogleMaps  two colonies without gonothecae, 3.5× 4 cm and 4.5× 4 cm, respectively; off New Caledonia, stn DW4744; 22°55′ S, 167°37′ E; 310– 290 m; 23 Aug. 2016; KANACONO leg.; MNHN-IK-2015-440GoogleMaps  two colonies without gonothecae, both 2.5× 3 cm; off New Caledonia, stn DW4782; 23°00′ S, 167°55′ E; 856– 845 m; 29 Aug. 2016; KANACONO leg.; MNHN-IK-2015-441GoogleMaps  four colonies without gonothecae, 3.2 × 3 cm, 3.5× 3 cm, 3.5× 3.5 cm, and 4.2× 4.5 cm, respectively; off New Caledonia, stn DW4741; 22°52′ S, 167°41′ E; 210 m; 23 Aug. 2016; KANACONO leg.; MNHN-IK-2015-442GoogleMaps  a 3.5× 3 cm colony without gonothecae; off New Caledonia, stn DW4745; 22°57′ S, 167°39′ E; 310–403 m; 23 Aug. 2016; KANACONO leg.; MNHN-IK-2015-443GoogleMaps  two colonies without gonothecae, 4× 4 cm and 4.5× 4.5 cm, respectively; off New Caledonia, stn DW4781; 22°57′ S, 167°47′ E; 295– 255 m; 29 Aug. 2016; KANACONO leg.; MNHN-IK-2015-444GoogleMaps  twenty colonies without gonothecae, largest 6 × 6 cm; off New Caledonia, stn DW4743; 22°52′ S, 167°34′ E; 380– 340 m; 23 Aug. 2016; KANACONO leg.; MNHN-IK-2015-445GoogleMaps  .

Remarks

Colonies of reticulate appearance, formed through anastomoses of terminal tendrils on neighboring branchlets, are met with in material MNHN-IK-2015-440. Tendrils may also settle down on main stems, forming accessory tubes. Abortive branchlets, given off from below the hydrothecal bases, may never develop hydrothecate internodes, transforming directly into tendrils that reach other hydrothecal bases, uniting laterally neighboring side branches, as illustrated by material MNHN-IK-2015-409. Despite the abundance of the material available both earlier ( Vervoort 1993) and in the present collections, the gonothecae of this species have yet to be discovered.

Distribution

New Caledonia, Norfolk Ridge and Solomon Islands ( Galea 2016).

MK

National Museum of Kenya

Kingdom

Animalia

Phylum

Cnidaria

Class

Hydrozoa

Order

Leptothecata

Family

Sertulariidae

Genus

Sertularella

Loc

Sertularella helenae Vervoort, 1993

Galea, Horia R. & Schuchert, Peter 2019
2019
Loc

Sertularella helenae –

Galea H. R. 2016: 27
2016
Loc

Sertularella helenae

Vervoort W. 1993: 218
1993