Halopteris peculiaris Billard, 1913

Galea, Horia R. & Maggioni, Davide, 2020, Plumularioid 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 708, pp. 1-58: 37-38

publication ID

https://doi.org/10.5852/ejt.2020.708

publication LSID

lsid:zoobank.org:pub:DDF28821-1A4A-4457-BB53-1696F3BFB7B2

DOI

http://doi.org/10.5281/zenodo.4335850

persistent identifier

http://treatment.plazi.org/id/03D92045-FFAC-FFD2-E658-27A2C314FD23

treatment provided by

Valdenar

scientific name

Halopteris peculiaris Billard, 1913
status

 

Halopteris peculiaris Billard, 1913  

Figs 14 View Fig N–P, 15D–E

Halopteris peculiaris   – Schuchert 1997: 84, figs 29–30.

Material examined

PACIFIC OCEAN • 1 colony composed of a few fertile stems, up to 6 cm high; off New Caledonia, stn DW4774; 23°01′ S, 168°19′ E; 100– 90 m; 28 Aug. 2016; KANACONO leg.; MNHN-IK-2015-609 GoogleMaps   .

Remarks

For synonymy and a description, refer to Schuchert (1997).

In the present material, the lateral nematothecae associated to the cauline hydrothecae on the side opposite to the cladial apophyses are often absent ( Fig. 14O View Fig ); in only rare instances, a pair is formed ( Fig. 14P View Fig ). The cladia display a regular structure: they begin with a short, quadrangular, athecate segment, followed by an ahydrothecate internode bearing a superior nematotheca and ending distally in an oblique node; afterwards, the segmentation is heteromerous, with up to 8 hydrothecate internode alternating with ahydrothecate counterparts ( Fig. 14N View Fig ); the latter are short, delimited proximally by a transverse node and distally by an oblique node, and bear a frontal nematotheca; the hydrothecate internodes are slightly longer, are delimited proximally by an oblique node and distally by a transverse one, and bear distally a hydrotheca and its 4 associated nematothecae: a mesial, a pair of laterals, and a scale-shaped axillar one. There is an important sexual dimorphism of the gonothecae: the female, given off from below the cauline hydrothecae, are large, ovoid and bear proximally 3 nematothecae ( Fig. 15D View Fig ); the male gonothecae, borne on cladia, are comparatively minute, and bear a single basal gonotheca ( Fig. 15E View Fig ).

Distribution

North Ubian Island, Philippines ( Billard 1913), Lizard Island, Australia ( Schuchert 1997), South Africa [ Millard 1975, as Halopteris glutinosa (Lamouroux, 1816)   ].

Kingdom

Animalia

Phylum

Cnidaria

Class

Hydrozoa

Order

Leptothecata

Family

Halopterididae

Genus

Halopteris

Loc

Halopteris peculiaris Billard, 1913

Galea, Horia R. & Maggioni, Davide 2020
2020
Loc

Halopteris peculiaris

Schuchert P. 1997: 84
1997