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Station 267, 1 Exemplar; Ståt. 270, 2 Expl.; Ståt.
326, et Par Expl.; Ståt. 336, nogle Expl.; Ståt. 363, et
Par Expl.
Asterias Mülleri, (M. Sars) Norman.
Tab. III, Fig. 10—13.
1846. Fauna littoralis Norvegia;, 1ste Hefte, pag. 56,
Tab. 8, Fig. 38—39.
1861. Asteracanthion Mülleri. M. Sars. Oversigt af
Norges Echinodermer, pag. 88.
1865. Asterias Mülleri, Norman. On the Genera and
species of British Echinodennata; The Ann. &
Ma-gaz. of Nat. Histor. 1865, pag. 127.
1866. Leptasterias Mülleri, Verrill. Proceedings Boston
Society of Nat. Hist. Vol. X, pag. 350.
1872. Asterias Mülleri, Hodge. Catalogue of the
Echinodennata of Northumberland and Durham 1872,
pag. 138.
1881. Asterias Mülleri, Bell, J. F. Contributions to the
Systematic Arrangement of the Asteroidea;
Proceedings of the Zool. Soc. of London 1881, pag. 510.
Denne af Professor M. Sars først beskrevne Søstjerne
har af tiere Forfattere været underkastet Tvivl om,
hvorvidt den virkelig var en selvstændig Art eller kun en
klimatisk Varietet af Asterias grønlandica, Steenstrup. Vi
have derfor underkastet den en omhyggelig Undersøgelse,
idet vi have faaet udlaant af Kristiania
Universitetssamlin-ger et Par Originalexemplarer af Sars’s Art; og fra
Kjøbenhavns naturhistoriske Museum har Bergens Museum
erhvervet endel Originalexemplarer ’af Steenstrups Art. Vi
formene saaledes, at have været i Besiddelse af det
nødvendige Sammenligningsmaterial for med Sikkerhed at kunne
afgjøre Tvivlen.
Asterias Mülleri har i tiere Punkter særdeles meget
tilfælles med Asterias grønlandica, men adskiller sig dog
bestemt fra denne. Til Sars’s Beskrivelse skulle vi gjøre
nogle Bemærkninger.
Der er hos Aster. Mülleri, som hos alle de af os
undersøgte Arter af denne Slægt, 2 distinkte Former af
Pedicellarier (enkelte have endog 3), nemlig de korsformede
og de lige. Sars angiver, at samtlige Pigge ere omgivne
af en Krands toklappede Pedicellarier, hvorved der menes
korsformede. Dette forholder sig ganske rigtigt, naar
undtages, at de inderste Pigge nærmest Furen ligesom selve
Furepapillerne kun halvt, nemlig paa Grunddelens ydre
Halvdel, ere forsynede med Pedicellarier. Disse korsformede
Habitat.
Station 267, One specimen.
„ 270, Two specimens.
„ 326, A couple of specimens.
„ 336, A few specimens.
„ 363, A couple of specimens.
Asterias mülleri (M. Sars), Norman.
Pl. Ill, figs. 10—13.
1846. Fauna littoralis Norvegiae, Iste Hefte, pag. 56,
Tab. 8, figs. 38, 39.
1861. Asteracanthion Mülleri, M. Sars. Oversigt af
Norges Echinodermer, pag. 88.
1865. Asterias Mülleri, Norman. On the genera and
species of British Echinodennata. The Ann. and
Magaz. of Nat. History 1865, pag. 127.
1866. Leptasterias Mülleri, Verrill. Proceedings
Boston-Society of Nat. Hist. Vol. X, pag. 350.
1872. Asterias Mülleri, Hodge. Catalogue of the
Echinodennata of Northumberland and Durham 1872,
pag. 138.
1881. Asterius Miilleii, Bell, J. F. Contributions to the
Systematic Arrangement of the Asteroidea.
Proceedings of the Zool. Soc. of London 1881, pag. 510.
It has been doubted by several writers, whether this
starfish, first described by Professor M. Sars, is an
independent species, or simply a climatic variety of Asterias
grcenlandica, Steenstrup. We have therefore submitted it
to a careful examination, and have received the loan of a
couple of original specimens of Sars’ species, from
Christiania University’s collection, and the Bergen Museum has
obtained a number of original specimens of Steenstrup’s
species, from the Copenhagen Museum of natural history. We
think, therefore, that we have had in our posession, the
necessary materials to make a comparison, and to place
us in a condition to decide the question with certainty.
Asterias mülleri, has in several points a very great
deal in common with Asterias grcenlandica, but yet, differs
distinctly from the latter. We will make a few remarks
upon Sars’ description.
In Asterias mülleri, as in all the species of this genus
which we have examined, there is found two distinct forms
of pedicellariæ, (some even have 3 forms) namely, the
cruciform and the rectiform pedicellariæ. Sars states, that all
the spines are surrounded by a wreath of double-flapped
pedicellariæ, by which expression he means cruciform
pedicellariæ. This is quite the case, but, with this exception,
namely, that the inmost spines next to the furrow, as well
as, also, the furrow-papillæ themselves, are only furnished
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