Sertularella tronconica Galea, 2016,

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: 41

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.3475311

persistent identifier

http://treatment.plazi.org/id/03C0D256-AD66-610B-FD96-A5445989FACB

treatment provided by

Plazi

scientific name

Sertularella tronconica Galea, 2016
status

 

Sertularella tronconica Galea, 2016 

Figs 10FView Fig, 14View Fig C –E

Sertularella tronconica Galea, 2016: 38  , figs 9Q–T, 10D.

Material examined

PACIFIC OCEAN • a 1.8 cm high colony with two (likely male) gonothecae, with almost only the perisarc left; off New Caledonia, stn CP4687; 22°29′ S, 167°30′ E; 256–268 m; 14 Aug. 2016; KANACONO leg.; MNHN-IK-2015-419 • a 1.7 cm high colony bearing an immature female gonotheca; off New Caledonia, stn DW4743; 22°52′ S, 167°34′ E; 380- 340 m; 23 Aug. 2016; KANACONO leg.; MNHN- IK-2015-426GoogleMaps  a 1.5 cm high colony with two female gonothecae; off New Caledonia, stn DW4744; 22°55′ S, 167°37′ E; 310– 290 m; 23 Aug. 2016; KANACONO leg., MHNG-INVE- 120848GoogleMaps  a 1.5 cm high colony bearing one male gonotheca; off New Caledonia, stn DW4678; 22°51′ S, 167°34′ E; 308– 303 m; 13 Aug. 2016; KANACONO leg.; MNHN-IK-2015-464GoogleMaps  .

Remarks

In material MNHN-IK-2015-426, the perisarc of the colony may be wavy to wrinkled in places, and the corrugations of the hydrothecae are more conspicuous, encompassing also their abaxial wall.

The hydrothecae in sample MNHN-IK-2015-419 display seven internal projections of the perisarc: four latero-adaxial, of which the two adaxial-most are the most prominent, one large abaxial, and two smaller latero-abaxial ( Fig. 14DView Fig). Its gonothecae are believed to be male, owing their shape and size (ca 1680 µm long and 505 µm wide, only one measured), compared to those from the holotype (see Galea 2016); they are given off laterally from the middle of the internode on side opposite to hydrotheca but, soon after, they are shifted on to the anterior/posterior side of the colony; club-shaped, with slightly undulated walls, aperture distal, rounded, small (ca 100 µm wide), borne on rather short and narrow neck region.

Distribution

New Caledonia, Norfolk Ridge ( Galea 2016).

Kingdom

Animalia

Phylum

Cnidaria

Class

Hydrozoa

Order

Leptothecata

Family

Sertulariidae

Genus

Sertularella

Loc

Sertularella tronconica Galea, 2016

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

Sertularella tronconica

Galea H. R. 2016: 38
2016