Staurotheca dichotoma Allman, 1888

ÁLVARO L. PEÑA CANTERO, 2017, Benthic hydroids (Cnidaria, Hydrozoa) from the Ross Sea (Antarctica) collected by the New Zealand Antarctic expedition BioRoss 2004 with RV Tangaroa, Zootaxa 4293 (1), pp. 1-65 : 31

publication ID

https://doi.org/ 10.11646/zootaxa.4293.1.1

publication LSID

lsid:zoobank.org:pub:6FF96B5C-1F80-47ED-9962-19603DCBF550

DOI

https://doi.org/10.5281/zenodo.4386818

persistent identifier

https://treatment.plazi.org/id/C84B87CA-CC08-FFAB-E8DD-02F00C76F0E4

treatment provided by

Plazi

scientific name

Staurotheca dichotoma Allman, 1888
status

 

Staurotheca dichotoma Allman, 1888

( Fig. 10 View FIGURE 10 C)

Staurotheca dichotoma— Totton, 1930: 178, fig. 27a, c, pl. 2 fig. 9; Peña Cantero & Vervoort, 2003: 2681 –2683, fig. 7 (synonymy); Peña Cantero & Gili, 2006: 768; Peña Cantero, 2010b: 769; 2012: 859; Soto Àngel & Peña Cantero, 2015: 998, fig. 8d–e.

Material examined. Stn 8, fragment 15 mm long (MNCN 2.03/558); Stn 140, mass of stems ca. 60 mm in diameter, basibiont of Hebella plana (NIWA 117530).

Remarks. In the material examined the hydrothecae are arranged in decussate pairs and have a significant free portion (about 200 µm). This is a species characterized by having quite robust hydrothecae ( Fig. 10 View FIGURE 10 C) with a relatively large diameter at the hydrothecal aperture (300–320 µm in the present material). The larger microbasic mastigophores are 19–22 x 4–4.5 µm.

Ecology and distribution. Reviewed by Peña Cantero & Vervoort (2003). Found at depths from 82 ( Totton 1930) to 799 m ( Peña Cantero et al. 1997a); present material from 231 to 541 m, basibiont for colonies of Hebella plana .

Species with an Antarctic–Kerguelen distribution ( Peña Cantero & Vervoort, 2003), recently reported from off Bouvet Island ( Peña Cantero & Gili 2006), Peter I Island ( Peña Cantero 2010b), South Georgia, South Sandwich Islands and Discovery Bank ( Soto Àngel & Peña Cantero 2015) and from the Bellingshausen Sea ( Peña Cantero 2012). See Peña Cantero & Vervoort (2003) for previous records. In the Ross Sea, already known from McMurdo Sound and off Cape Adare ( Totton 1930) and from the central basin and at Pennell Bank ( Peña Cantero & Vervoort 2003). Present material off Possession Islands and Moubray Bay

Kingdom

Animalia

Phylum

Cnidaria

Class

Hydrozoa

Order

Leptothecata

Family

Sertulariidae

Genus

Staurotheca

Loc

Staurotheca dichotoma Allman, 1888

ÁLVARO L. PEÑA CANTERO 2017
2017
Loc

Staurotheca

Soto 2015: 998
Pena 2010: 769
Pena 2006: 768
Pena 2003: 2681
Totton 1930: 178
1930
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