. The Danish Ingolf-Expedition. Scientific expeditions; Arctic Ocean. ACTINIARIA 123 branched pennons. If this specimen is the type, not those from Bergen, I am ahuost inchned to regard arctica and Sars's duodecimcirrata as one and the same species (a closer examination of some other specimens from Lofoten is, however, to be undertaken before deciding it with certainty) If this should be found to be the case, the Halcampa-sj)ecies from South Norway, from Sweden and from the Baltic Sea may be named H. variabilis. Sars has besides, at another time, evidently confounded an Edwardsia proper with a
. The Danish Ingolf-Expedition. Scientific expeditions; Arctic Ocean. ACTINIARIA 123 branched pennons. If this specimen is the type, not those from Bergen, I am ahuost inchned to regard arctica and Sars's duodecimcirrata as one and the same species (a closer examination of some other specimens from Lofoten is, however, to be undertaken before deciding it with certainty) If this should be found to be the case, the Halcampa-sj)ecies from South Norway, from Sweden and from the Baltic Sea may be named H. variabilis. Sars has besides, at another time, evidently confounded an Edwardsia proper with a H. duode- cimcirrata. In the museum of Christiania there are several now exsiccated specimens, labelled 0gsfiord, Finmark Sars, and determined probably by himself as Edwardsia duodecimcirrata; in reahty these spec- imens are Edwardsia proper, probably E. andresi, hke H. duodecimcirrata mostly provided with 12 tentacles. Halcampa ? vegae n. sp. PI. I. Fig. 2. Diagnosis: Apertures of the retractile physa? Scapus with a thin, easily deciduous periderm. Nema- tocysts of the scapus, capitulum and tentacles about 13 X 1,5 //. Spirocysts of the capitulum and the ten- tacles unto about 11 /z long. Tentacles probably 12. Perfect mesenteries 12, imperfect 12. lyongitudinal pen- nons of the mesenteries very strong, their ramification almost like that of the pennons of H. arctica. Parietal muscles strong, in transverse-sections not elongated, divided into very fine and numerous branches. Imper- fect mesenteries very finely folded, elongated. Occurrence: Behring Sea 64°52' N. i72°3' W. 18 fms (Vega-Exp. N. 1056) i sp. Exterior aspect: The exterior of the very contracted and partly not well preserved animal (PI. i, fig. 2) recalls that of other Halcampa-sptcies. On account of the strong contraction and involution of the physa I have not been able to examine it more closely. The scapus is provided with a thin, easily deciduous periderm. Round the papillae foreign bodies are fastened. The t
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectscienti, bookyear1921
