Halopteris catharina ( Johnston, 1833 )

Gil, Marta, Ramil, Fran & Agís, José Ansín, 2020, Hydroids (Cnidaria, Hydrozoa) from Mauritanian Coral Mounds, Zootaxa 4878 (3), pp. 412-466: 433-435

publication ID

https://doi.org/10.11646/zootaxa.4878.3.2

publication LSID

lsid:zoobank.org:pub:4F59F5B2-CFDB-4819-AF83-0EF232328F8D

DOI

http://doi.org/10.5281/zenodo.4426146

persistent identifier

http://treatment.plazi.org/id/03DE879D-1C04-3365-46B2-C181A19F6A6F

treatment provided by

Plazi

scientific name

Halopteris catharina ( Johnston, 1833 )
status

 

Halopteris catharina ( Johnston, 1833)  

( Fig. 3F View FIGURE 3 )

Halopteris catharina: Ramil & Vervoort, 1992: 145–148   , fig. 37e–g; Cornelius, 1995b: 126–128, fig. 29; Schuchert, 1997: 107–110, fig. 38; Ansín Agís et al., 2001: 159–163, fig. 68.

Material examined. MAURIT-0911, stn MUDR 01, 16º08´24”N, 16º57´12”W, 488 m, 5-XII-2009: 25 colonies, six colonies growing on bryozoans, one on sponge, three on Aglaophenia lophocarpa   , three on Plumularia filicula   , one on Halecium sibogae marocanum   and one on Nemertesia   sp.; without gonothecae.

MAURIT-0911, stn MUDR02, 16º08´50”N, 16º57´01”W, 462 m, 5-XII-2009: seven colonies, no gonothecae GoogleMaps   .

MAURIT-1011, stn MUDR20, 16º08´11”N, 16º56´08”W, 405 m, 7-XII-2010: two colonies, one of them attached to Aglaophenia lophocarpa   , without gonothecae GoogleMaps   .

MSM 16/3, stn GeoB 14796–1, ROV, 20°14.840’– 20°14.575’N, 17°40.193’– 17°40.071’W, 487–642m, 3-XI- 2010: five colonies 7–17 mm high, one on a sponge, two on Lophelia pertusa   , two on Halecium beanii   ; without gonothecae.

MSM 16 View Materials /3, stn GeoB 14801–1, BG, 20°14.762’N, 17°40.173’W, 568 m, 3-XI-2010: two colonies 7 mm high, one on Aglaophenia lophocarpa   , no gonothecae GoogleMaps   .

MSM 16 View Materials /3, stn GeoB 14802–1, BG, 20°14.791’N, 17°40.188’W, 595 m, 3-XI-2010: one colony on Lophelia pertusa   , no gonothecae GoogleMaps   .

MSM 16/3, stn GeoB 14886–1, ROV, 18°39.013’– 18°38.476’N, 16°43.580’– 16°43.757’W, 484–640 m, 12-XI- 2010: two colonies 12 mm high, one on Acesta excavata   , one on Madrepora oculata   , no gonothecae.

Biology. Halopteris catharina   has been collected frequently from other hydroids and algae, sponges, corals, worm tubes and ascidians ( Ramil & Vervoort 1992; Ansín Agís et al. 2001; Gravili et al. 2013). The gonothecae have been found in February and from April to September ( Ansín Agís et al. 2001).

In our material, some colonies were found growing on sponges, other hydroid species, the scleractinians L. pertusa   and M. oculata   and the bivalve A. excavata   .

Distribution. This species has a wide distribution on both sides of the Atlantic Ocean, from the Arctic to the southern-boreal regions, including the Mediterranean Sea ( Ramil & Vervoort 1992). For a detailed distribution, see Ansín Agís et al. (2001). In West Africa, H. catharina   was collected from Morocco ( Ramil & Vervoort 1992), Mauritania ( Gil & Ramil 2017a) and Cape Verde Archipelago ( Ansín Agís et al. 2001; Vervoort 2006). Its bathymetric range stretches from 1 to 627 m ( Ansín Agís et al. 2001; Gil & Ramil 2017a).

The material studied by us was collected from depths of 405 to 642 m.

Remarks. The plumose aspect of the colony with opposed hydrocladia and presence of a supplementary pair of lateral nematothecae helped in accurate identification of this species.

MSM

Marine Science Museum, Tokai Univ.

Kingdom

Animalia

Phylum

Cnidaria

Class

Hydrozoa

Order

Leptothecata

Family

Halopterididae

Genus

Halopteris

Loc

Halopteris catharina ( Johnston, 1833 )

Gil, Marta, Ramil, Fran & Agís, José Ansín 2020
2020
Loc

Halopteris catharina:

Ansin Agis, J. & Ramil, F. & Vervoort, W. 2001: 159
Schuchert, P. 1997: 107
Cornelius, P. F. S. 1995: 126
Ramil, F. & Vervoort, W. 1992: 148
1992