Stylactaria fucicola (M. Sars, 1857),

Gravili, Cinzia, Vito, Doris De, Camillo, Cristina Gioia Di, Martell, Luis, Piraino, Stefano & Boero, Ferdinando, 2015, The non-Siphonophoran Hydrozoa (Cnidaria) of Salento, Italy with notes on their life-cycles: an illustrated guide, Zootaxa 3908 (1), pp. 1-187: 19-20

publication ID

http://dx.doi.org/10.11646/zootaxa.3908.1.1

publication LSID

lsid:zoobank.org:pub:D6AD2B49-170B-4D9C-84AA-DBE0FEEAD8BE

persistent identifier

http://treatment.plazi.org/id/03F887DE-FFE4-FFAA-9CD6-0F97D392FD1A

treatment provided by

Plazi

scientific name

Stylactaria fucicola (M. Sars, 1857)
status

 

Stylactaria fucicola (M. Sars, 1857) 

Fig. 10View FIGURE 10 A –D

See Schuchert (2008 a, 2013) for a complete synonymy.

Material examined. HCUS-S 0 11 and HCUS-S 0 12 (Hydrozoa Collection, University of Salento—fauna of the Salento Peninsula).

Description (based on our own observations; Stechow 1919, Schuchert 2008 a both as Hydractinia fucicola  ):

Hydroid. Hydrorhiza encrusting, covered by naked coenosarc, with or without numerous spines; colonies stolonal, polymorphic with gastrozooids, gonozooids, and sometimes tentaculozooids; gastrozooids fusiform to cylindrical, up to 3 mm long, without perisarc collar at base; hypostome cylindrical; 6–12 tentacles; gonozooids usually smaller and more slender than gastrozooids, 4–8 tentacles and trumpet-shaped hypostome; colonies dioecious. Gonophores as fixed sporosacs, males spherical, females slightly flattened on both extremes, with 6– 12 eggs; both covered by numerous nematocysts, without radial canals or tentacle rudiments, spadix present. Colours: spine perisarc brown, hydranths orange or pink.

Cnidome. Microbasic euryteles of two size classes, desmonemes; both gastrozooids and gonozooids with a characteristic ring of large microbasic eurytele cnidocysts surrounding the hypostome above the tentacle whorl.

Habitat type. In the Mediterranean, S. fucicola  occurs only in shallow waters (0–30 m) ( Boero & Fresi, 1986; Schuchert 2008 a).

Substrate. Algae, hydroids, barnacles, Posidonia  leaves, sponges.

Seasonality. In the Ligurian Sea from January to August, November –December ( Boero & Fresi 1986; Puce et al. 2009); in Salento waters from November to May (De Vito 2006; this study).

Reproductive period. In the Ligurian Sea ( Boero & Fresi 1986; Puce et al. 2009), reproductive colonies occur in April, August; from February to April (De Vito 2006; this study) in Salento waters.

Distribution. Northeastern Atlantic, Mediterranean ( Castric-Fey 1970; Medel & López-González 1996; Bouillon et al. 2004; Gravili et al. 2008 a; Schuchert 2008 a; Puce et al. 2009).

Records in Salento. Common at Porto Cesareo ( Faucci & Boero 2000); Costa Merlata ( Fraschetti et al. 2002; Gravili 2006; Gravili et al. 2008 a); Otranto (De Vito 2006; Gravili 2006; Gravili et al. 2008 a; Ventura, 2011; Piraino et al. 2013; this study); Torre Lapillo ( Andreano 2007).

Remarks. The presence of spines depends on the substrate ( Schuchert, 2008 a). Miglietta & Cunningham (2012) referred this nominal species to Stylactaria  . Boero et al. (1998) interpreted the evolutionary trend of medusa reduction of the hydractiniids as repeated episodes of heterochrony.

References. Motz-Kossowska (1905) as Hydractinia fucicola, Mayer (1910)  as Stylactis fucicola, Stechow (1919)  as H. fucicola, Picard (1952  , 1958a) as Podocoryna fucicola, Castric-Fey (1970)  as H. fucicola, Marinopoulos (1979)  as P. fucicola, Gili et al. (1984)  as Podocoryne fucicola, Boero & Fresi (1986)  as Stylactis fucicola, Barangé & Gili (1987)  as P. fucicola  ; Medel & López-González (1996), Bouillon et al. (1997), Faucci & Boero (2000), Fraschetti et al. (2002), Bouillon et al. (2004), De Vito (2006), Gravili (2006), Gravili et al. (2008 a), Schuchert (2008 a), Puce et al. (2009), Ventura (2011), Piraino et al. (2013) all as H. fucicola  .

Kingdom

Animalia

Phylum

Cnidaria

Class

Hydrozoa

Order

Anthoathecata

Family

Hydractiniidae

Genus

Stylactaria

Loc

Stylactaria fucicola (M. Sars, 1857)

Gravili, Cinzia, Vito, Doris De, Camillo, Cristina Gioia Di, Martell, Luis, Piraino, Stefano & Boero, Ferdinando 2015
2015
Loc

Stylactis fucicola, Barangé & Gili (1987)

Barange & Gili 1987
1987
Loc

Podocoryne fucicola

Boero & Fresi 1986
1986
Loc

P. fucicola

Gili et al. 1984
1984
Loc

H. fucicola

Marinopoulos 1979
1979
Loc

Podocoryna fucicola

Castric-Fey 1970
1970
Loc

H. fucicola

Picard 1952
1952
Loc

Stylactis fucicola

Stechow 1919
1919
Loc

Hydractinia fucicola

Mayer 1910
1910