Calycella syringa ( Linnaeus, 1767 )

Calder, Dale R., 2012, On a collection of hydroids (Cnidaria, Hydrozoa, Hydroidolina) from the west coast of Sweden, with a checklist of species from the region 3171, Zootaxa 3171 (1), pp. 1-77 : 23

Calycella syringa ( Linnaeus, 1767)

Fig. 22

Sertularia syringa Linnaeus, 1767: 1311 .

Calycella syringa .— Segerstedt, 1889: 15, 25.— Jäderholm, 1909: 80, pl. 8, fig. 3.— Rees & Rowe, 1969: 14.

Calicella syringa .— Jägerskiöld, 1971: 61 [incorrect subsequent spelling of Calycella Hincks , in Allman, 1864].

Type locality. Linnaeus (1767: 1311) based his account of this species on material described and illustrated by Ellis (1755: 25, 26), but gave its provenance simply as “Habitat in Oceano.” Although Ellis mentioned no specific locale for the species, his work was based on “zoophytes” of Great Britain and Ireland. The type locality can thus be restricted to the British Isles.

Museum material. Kosterhavet, 58°52.536’N, 11°06.229’E, 6–30 m, 07.ix.2010, SCUBA , a few hydrothecae, some with hydranths, on Hydrallmania falcata , without gonothecae, coll. B.E. Picton, ROMIZ B3899 .

Remarks. Calycella syringa ( Linnaeus, 1767) is abundant and widely distributed from Arctic regions to cooltemperate environments of both Atlantic and Pacific oceans, and it is common in southern Scandinavia ( Jäderholm 1909; Kramp 1935b, as Calicella syringa ; Jägerskiöld 1971, as Calicella syringa ; Christiansen 1972). Confusion over its nomenclature, and especially the spelling of the generic name, was clarified by Cornelius (1978). Information on the biology of this hydroid, encountered frequently in relatively shallow boreal waters, has been summarized in Cornelius (1995a).

Reported distribution. West coast of Sweden.—From the Säcken area to middle Kattegat ( Jägerskiöld 1971: 61, as Calicella syringa ).

Elsewhere.—Widespread. In the northern hemisphere, it ranges from northern seas of the Russian Federation ( Linko 1912, as Campanulina syringa ; Naumov 1960, as Calicella syringa ) to Portugal (da Cunha 1944) and the western Mediterranean ( Bouillon et al. 2004) in the eastern North Atlantic; from Barrow Strait, Arctic Canada ( Calder 1970), to Long Island Sound ( Fraser 1944) in the western North Atlantic; from far eastern seas of the Russian Federation ( Naumov 1960) to Japan ( Hirohito 1995) in the western North Pacific; from Alaska ( Fraser 1937) to California ( Fraser 1948) in the eastern North Pacific.