Antennella secundaria ( Gmelin, 1791 )
publication ID |
https://doi.org/ 10.11646/zootaxa.4347.1.1 |
publication LSID |
lsid:zoobank.org:pub:176D72B0-0DD6-4D51-83CA-D47C2268A3CF |
DOI |
https://doi.org/10.5281/zenodo.5248594 |
persistent identifier |
https://treatment.plazi.org/id/03F0943B-FFCF-4D02-0BF8-F8B3FBAD117E |
treatment provided by |
Plazi |
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Antennella secundaria ( Gmelin, 1791 ) |
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Antennella secundaria ( Gmelin, 1791) View in CoL
( Fig. 9A–E View FIGURE 9 )
Antennella secundaria View in CoL — Ansín Agís et al., 2001: 140 –145, fig. 63 (synonymy).
Material examined. 13881#1, five stems up to 10 mm high, on Sertularella gayi , no gonothecae.
Description. Stems unbranched, up to 10 mm high, and with up to six hydrothecae. Stem resting on short apophysis. First two cauline internodes with two nematothecae, third internode longer and provided with six nematothecae ( Fig. 9A View FIGURE 9 ). Remaining stem divided by alternating oblique and transverse nodes into an alternate series of hydrothecate/ahydrothecate internodes ( Fig. 9B–D View FIGURE 9 ). Ahydrothecate internodes typically with three medial nematothecae ( Fig. 9C View FIGURE 9 ), although internodes with only one also present ( Fig. 9B View FIGURE 9 ). Hydrothecate internodes with one hydrotheca and four nematothecae: two flanking hydrothecal aperture on long pedicels ( Fig. 9E View FIGURE 9 ) (frequently one without pedicel), one nematotheca at axil between adcauline hydrothecal wall and internode ( Fig. 9D View FIGURE 9 ) and a mesial infrathecal nematotheca not reaching hydrothecal basal part ( Fig. 9B–D View FIGURE 9 ). All nematothecae bi-chambered. Hydrotheca cup-shaped ( Fig. 9E View FIGURE 9 ). Hydrothecal wall roughly straight in lateral view, but distinctly widening at distal part of adcauline side. Hydrothecal aperture circular; rim laterally concave ( Fig. 9E View FIGURE 9 ).
Remarks. See Calder (1997b), Schuchert (1997) or Ansín Agís et al. (2001) for a wide discussion on the species.
Ecology and distribution. This is a eurybathic species, known between 0 ( Millard 1975) and 2700 m (Vervoort 2006); present material collected from the Porcupine Seabight at a depth of 863 m. Worldwide distribution in temperate, subtropical and tropical seas (Vervoort 2006).
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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Antennella secundaria ( Gmelin, 1791 )
Peña Cantero, Álvaro L. & Horton, Tammy 2017 |
Antennella secundaria
Ansin 2001: 140 |