Deep-Sea source details
Bouillon, J.; Pages, F.; Gili, J. M. (2001). New species of benthopelagic hydroidomedusae from the Weddell Sea. Polar Biology. 24(11): 839-845.
37558
10.1007/s003000100289 [view]
Bouillon, J.; Pages, F.; Gili, J. M.
2001
New species of benthopelagic hydroidomedusae from the Weddell Sea
Polar Biology
24(11): 839-845
Publication
Four medusa species were collected by an epibenthic sledge during the "Polarstern" ANT XV/3 cruise carried out from January to March 1998 in the eastern Weddell Sea. The specimens were collected in the benthic boundary layer at depths ranging between 1,583 and 2,034 m; 2 of the species collected are new to science. The narcomedusa Sigiweddellia bathypelagica gen. nov. et sp. nov. is characterised by two types of marginal tentacles and closed marginal statocysts. The trachymedusa Voragonema laciniata sp. nov. (known only from the single holotype) is characterised by the number and irregular shape of the centripetal canals. These findings are the first to report benthopelagic hydromedusae in deep Antarctic waters. Examination of several specimens of Benthocodon pedunculata (Bigelow 1913) leads us to move it to the genus Voragonema Naumov 1971 because of the clear presence of centripetal expansions in the ring canal.Descriptors: Parateclaia euromarge, Sigiweddelia benthopelagica, Voragonema laciniata
Antarctic
Antartida
Systematics, Taxonomy
Systematics, Taxonomy
Benthocodon Larson & Harbison, 1990 (additional source)
Sigiweddellia Bouillon, Pagès & Gili, 2001 (original description)
Sigiweddellia bathypelagica Bouillon, Pagès & Gili, 2001 accepted as Sigiweddellia benthopelagica Bouillon, Pagès & Gili, 2001 (original description)
Sigiweddellia benthopelagica Bouillon, Pagès & Gili, 2001 (original description)
Voragonema laciniata Bouillon, Pagès & Gili, 2001 accepted as Pectis antarctica Haeckel, 1879 (original description)
Voragonema profundicola Naumov, 1971 accepted as Pectis profundicola (Naumov, 1971) (basis of record)
Sigiweddellia Bouillon, Pagès & Gili, 2001 (original description)
Sigiweddellia bathypelagica Bouillon, Pagès & Gili, 2001 accepted as Sigiweddellia benthopelagica Bouillon, Pagès & Gili, 2001 (original description)
Sigiweddellia benthopelagica Bouillon, Pagès & Gili, 2001 (original description)
Voragonema laciniata Bouillon, Pagès & Gili, 2001 accepted as Pectis antarctica Haeckel, 1879 (original description)
Voragonema profundicola Naumov, 1971 accepted as Pectis profundicola (Naumov, 1971) (basis of record)
Weddell Sea for Sigiweddellia bathypelagica Bouillon, Pagès & Gili, 2001
Diagnosis
Narcomedusae with perradial and undivided manubrial pouches, with or without peripheral canal system, with ... [details]
Taxonomic remark
Differs from Voragonema by the absence of short centripetal canals. See Bouillon et al. (2001) for a comparison ... [details]
Taxonomic remark
Differs from Benthocodon by the presence of short centripetal canals. See Bouillon, Pages & Gili (2001) for a ... [details]
