On a collection of shallow-water hydroids (Cnidaria: Hydrozoa) from Guadeloupe and Les Saintes, French Lesser Antilles
Author
Galea, Horia R.
text
Zootaxa
2008
1878
1
54
journal article
10.5281/zenodo.184149
086e0d63-8af0-4ad1-8884-03fa56b5ea98
1175-5326
184149
Coryne pusilla
Gaertner, 1774
(fig. 2R–U)
Coryne pusilla
Gaertner, 1774
: 40
, pl. 4 fig. 8.—
Brinckmann-Voss, 1970
: 51
, fig. 57.—Millard, 1975: 51, fig. 19F–G.— Hirohito, 1988: 33, fig. 10A–C.—
Schuchert, 1996
: 119
, fig. 72.—
Schuchert, 2001a
: 48
, fig. 34.—
Schuchert, 2001b
: 776
, fig. 14A–B.
Material examined
.
Stn. 2
:
26.01.2008
—several hydranths, no gonophores, on algae.
Stn. 3
: 0 1.04.2008 – numerous small colonies, some with male gonophores, on various algae, concretions and sponge.
Stn. 7
:
25.03.2008
—several small, stolonal colonies, some with a few female gonophores, on
Dictyota
sp. and concretions;
27.03.2008
—a small, sterile colony, mostly stolonal, occasionally with a few erect stems, on concretions.
Type
locality
. Possibly Cornwall (
Allman 1871
).
Remarks
. The present material originates from an area with strong water movement and therefore the colonies are mainly stolonal. Occasionally, small, erect stems up to
7 mm
high and 5 hydranths occur within the colonies. The perisarc ranges from obviously annulated at origin of stems and branches, to nearly smooth elsewhere. There is no perisarc collar at the base of polyps. The hydranths are spindle-shaped and have a row of 3–4 oral tentacles and 3–4 additional lower rows; the total number of tentacles is 18–24. Some polyps in the male colonies bear clusters of up to 3 sporosacs in the upper axils of the basalmost tentacles. The female colony has fewer gonophores per hydranth. Nematocysts (undischarged): large stenoteles (22.6–26.4) × (15.6– 17.8) µm; small stenoteles (10.8–12.3) × (6.6–6.8) µm.
For a complete description of
C. pusilla
, its synonymy, and additional data, see
Schuchert (2001b)
.
Distribution
. Previously recorded from all the European coasts, including the Mediterranean,
South Africa
, Kerguelen,
Seychelles
,
Korea
,
Japan
,
New Zealand
, eastern
Canada
(
Schuchert 2001b
),
Greenland
, and
Iceland
(
Schuchert 2001a
). The present record extends the known distribution to the tropical eastern Atlantic.