. The Danish Ingolf-expedition. Marine animals -- Arctic regions; Scientific expeditions; Arctic regions. HYDROIDA 6i distinct main ring of nematocysts. On tlie other hand, there is round the pol\p body, at its base, a distinctive girdle of large stinging cells. Otherwise, the colony has no particular stinging organs. The gonophores are styloid. The male gonophores have two chambers with a well marked accumulation of stinging cells distally, and are densely clustered on short stems perpendicularly jDlaced on the trunk. Female gonophores are unknown. Material: The Faroe Islands: Trangisvaag, on
. The Danish Ingolf-expedition. Marine animals -- Arctic regions; Scientific expeditions; Arctic regions. HYDROIDA 6i distinct main ring of nematocysts. On tlie other hand, there is round the pol\p body, at its base, a distinctive girdle of large stinging cells. Otherwise, the colony has no particular stinging organs. The gonophores are styloid. The male gonophores have two chambers with a well marked accumulation of stinging cells distally, and are densely clustered on short stems perpendicularly jDlaced on the trunk. Female gonophores are unknown. Material: The Faroe Islands: Trangisvaag, on roots of Lainiiiaria. The species was first described by Wright (1859) by the name of Riidcndrhun arhiiscula from the Firth of F^orth. However, another Eudcudrium had been previously described by d'Orbigny. 200 ffi. _«..---6oom. .^..,._.«.. m. 20oom. Text-fig. T. The occurence of Eiidcndrium h'lighti • and Endeinhuim aniiulattim ? in the Northern Atlantic. (The vothed coastal parties denote a scattered occurence of Eiuleittium Wrighti according to the litterature). (1839) by the name of Tubularia arbusada from Patagonia, and even though it will be questionable whether the species of d'Orbigny can be reidentified, we are no doubt right to follow Hartlaub (1905) and abandon the name of arbiiscula for the northern species. Here we, therefore, adopt the denomination of Hartlaub, Eudcndriiiiii Wrighfi. Eiidciidriuiii Wn'g/ifi \s an absolutely littoral species, the occurence of which seems to be restricted to the zone of the Ivaminaria. It occurs quite frequently from Bohuslan as far as towards tlie Trond- hjemfjord, and it is peculiar, therefore, that its female gonophores have not yet been pointed out. The species is quite common at the British Isles (s. the Text-fig. T), and it has also been recorded from the Mediterranean. Eudendriuiu Wright! is, therefore, likely to be characterized as an Atlantic species of southern character, which is able to penetrate into the nort
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Keywords: ., bookcentury1800, bookdecade1890, booksu, booksubjectarcticregions
