The non-Siphonophoran Hydrozoa (Cnidaria) of Salento, Italy with notes on their life-cycles: an illustrated guide
Author
Gravili, Cinzia
Author
Vito, Doris De
Author
Camillo, Cristina Gioia Di
Author
Martell, Luis
Author
Piraino, Stefano
Author
Boero, Ferdinando
text
Zootaxa
2015
3908
1
1
187
journal article
42365
10.11646/zootaxa.3908.1.1
6f1d1977-6b97-4789-828c-76ed250cf1ae
1175-5326
242729
D6AD2B49-170B-4D9C-84AA-DBE0FEEAD8BE
Coryne pintneri
Schneider, 1898
Fig. 35
A, B
See
Schuchert (2001b)
for a complete synonymy.
Material examined.
HCUS-S 0 40 (Hydrozoa Collection, University of Salento—fauna of the Salento Peninsula).
Description
(based on our own observations;
Brinckmann-Voss 1970
;
Schuchert 2001b
, 2010, 2012):
Hydroid.
Hydrorhiza stolonal; colonies mostly stolonal, occasionally sparingly branched with 2 hydranths, rarely with up to 5 side branches, up to
2 cm
in height; perisarc not thick, feebly annulated to smooth, frequently 2–3 annulations separated by smooth intervals; hydranths with 15–21 capitate tentacles either scattered or in 4–5 whorls, below them a whorl of 2–6 short filiform tentacles, which are often absent, but always present in regenerating hydranths. Gonophores as fixed sporosacs spherical, borne in 2 whorls in upper axil of tentacles in middle of hydranth body, without radial or circular canals, females with numerous eggs. Colours: colourless to reddish-rose.
Cnidome.
Stenoteles of two size classes.
Habitat
type
.
Shaded places in caves and also on rocks (depth range:
0–40 m
) (
Brinckmann-Voss 1970
;
Boero & Fresi 1986
;
Schuchert 2001b
).
Substrate.
On several substrates and organisms such as
Peyssonnelia
sp.,
Balanus
shells, leaves and roots of
Posidonia
beds,
Myriapora truncata
.
Seasonality.
March–May (
Brinckmann-Voss 1970
) in the Tyrrhenian Sea; November (
Boero & Fresi 1986
) in the Ligurian Sea; from February to March, and October in Salento waters (Gravili 2006;
Gravili
et al.
2008a
).
Reproductive period.
In the Tyrrhenian Sea, fertile colonies occur from March to May (
Brinckmann-Voss 1970
).
Distribution.
Mediterranean (
Gravili
et al.
2008a
), coasts of Brittany (
France
), and
Scotland
(see
Schuchert 2001b
).
Records in Salento.
Rare at Otranto (Gravili 2006;
Gravili
et al.
2008a
).
Remarks.
The filiform tentacles are usually missing in colonies from agitated waters (
Brinckmann-Voss 1970
;
Edwards & Harvey 1983
). The Mediterranean records of this species are also discussed in the remarks on
Coryne pusilla
(for more details see
Schuchert 2005a
, 2010).
References.
Schneider (1898)
,
Motz-Kossowska (1905)
,
Stechow (1923)
,
Brinckmann-Voss (1970)
,
Boero (1981a
,
b
), Boero
et al.
(1985),
Boero & Fresi (1986)
,
Piraino
et al.
(1999)
,
Schuchert (2001b
, 2010, 2012), Bouillon
et al.
(2004), Gravili (2006),
Gravili
et al.
(2008a)
.