82 



BIDRAG 



TIL 



DE VED DEN NOESKE KYST LEVENDE 

 PENNATULIDERS NATURHISTORIE. 



AF 



J. KOREN & D. C. DANIELSSEN. 



SY8 



Viden sidste Hefte af Fauna littoralis Norvegiæ udkom, er 

 der af flere Forfattere leveret vigtige naturhistoriske 

 Bidrag til Pennatuliderne. Professor Milne-Edwards 1 ) har 

 i sit righoldige Værk over Corallerne samlet Alt, hvad 

 der til den Tid var bekjendt over Søfjærene, og tillige 

 characteriseret de af Valenciennes opstillede tvende nye 

 Slægter. Senere har Herklots, 2 ) Gray, 3 * 6 ) Verrill, 4 ) Ri- 

 chiardi, 5 ) Kölliker 7 ) og Panceri 8 ) ikke alene fremstillet 

 flere nye baade Slægter og Arter, men ogsaa væsentlig 

 bidraget til at fuldstændiggjøre Systematiken og at op- 

 klare disse Dyrs Anatomie og Physiologie. 



1. Milne-Edwards, H. Histoire naturelle des coralliaires ou po- 



lypes proprement dits. Tom. 1. Paris 1857. 



2. Herklots, A. I. Notices pour servir å l'étude des polypiers na- 



geurs ou pennatulides. Leyden 1858. 



3. Gray, E. I. The Annales and Magazine of Natural History. 



Vol. 5. Third Series. London 1860. 



4. Verrill. Bulletin of the Museum of comparative Zoology. Cam- 



bridge 1863. 



5* Richiardi, S. Monografia della famiglia dei pennatularii. Bo- 

 logna 1869. 

 Gray, E. I. Catalogue of Sea-Pens or pennatulariidæ in the 



collection of the british Museum. London 1870. 

 Kölliker, A. Anatomisch-systematische Beschreibung der Alcy- 

 onarien. lste Abtheilung, die Pennatuliden. Frankfurt a. 

 M. 1872. 



8. Panceri, M. Annales des sciences naturelles, 46 Année, 5 Serie. 

 Tom. 16. Paris 1872. 



6. 



7. 



PTILELLA GRANDIS, Ehrenbekg 1 ). 

 (Tab. XI, Fig. 1—7). 

 Synon.: Pennatula grandis, Ehrenberg. Die Corallenthiere des 

 rothen Meeres. Pag. 66. 



P. borealis, Sars. Fauna littoralis Norvegiæ, lste Lieferung, 

 Pag. 17, Tab. 2, Fig. 1—4, 



x ) Naar vi have optaget E. I. Gray's nydannede Slægt Ptilella, 

 saa er det, fordi vi samstemme med ham deri, at Pennatula borealis, 

 Sars, saa væsentlig adskiller sig fra de øvrige Pennatulaer, at den 

 som Følge deraf ikke kan længere staa i deres Række. Vore Un- 

 dersøgelser have imidlertid sat os istand til at udvide Slægts char ac- 

 tererne, og derved gjort Slægts dannelsen endmere berettiget. Hvad 

 nu Sars's Artsbenævnelse „borealis" betræffer, saa have vi ikke 

 kunnet bibeholde den, da senere Observationer, fornemmelig af Köl- 



CONTRIBUTION 



TO 



THE NATURAL HISTORY OP THE PENNATTJ- 

 LIDÆ LIVING ON THE NORWEGIAN COAST. 



BY 



J. KOREN & D. C. DANIELSSEN. 



A fter the publication of the last number of Fauna 

 littoralis Norvegiæ, several authors have given some 

 important contributions to the Natural History of the 

 Pennatulidæ. Professor H. Milne-Edwards 1 ) has in his 

 instructive work on Corals collected all that was known 

 at the time about the Sea-Pens and also characterised 

 the two new genera established by Valenciennes. Subse- 

 quently Herklots,^) Gray, 3,6 ) Verrill, 4 ) Richiardi, 5 ) Rølli- 

 ker r ) and Panieri 8 ) have not only brought forward several 

 new genera and species, but also essentially contributed 

 to complete the system and to elucidate the anatomy and 

 physiology of these animals. 



1. Milne Edvards, H. Histoire naturelle des coralliaires ou po- 



lypes proprement dits. Tom. 1. Paris 1857. 



2. Herklots, A. I. Notices pour servir å l'étude des polypiers na- 



geurs ou pennatulides. Leyden 1858. 



3. Gray, E. I. The annals and Magazine of Natural History. 



Vol. 5. Third Series. London 1860. 



4. Verrill. Bulletin of the Museum of comparative Zoology. Cam- 



bridge 1863. 



5. Richiardi, S. Monografia della famiglia dei pennatularii. Bo- 



logna 1869. 



6. Gray, E. I. Catalogue of Sea-Pens or pennatulariidæ in the 



collection of the british Museum. London 1870. 



7. Kölliker, A. Anatomisch-systematische Beschreibung der Alcy- 



onarien. lste Abtheilung, die Pennatuliden. Frankfurt a. 

 M. 1872. 



8. Panceri, M. Annales des sciences naturelles, 46 Année, 5 Serie. 



Tom. 16. Paris 1872. 



PTILELLA GRANDIS, Ehrenberg *). 

 (Tab. XI, fig. 1-7). 

 Synon.: Pennatula grandis, Ehrenberg. Die Corallenthiere des 

 rothen Meeres, p. 66. 



P. borealis, Sars. Fauna littoralis Norvegiæ, lste Lieferung, 

 pag. 17, tab. 2, fig. 1—4. 



*) If we have adopted E. I. Gray's newly formed genus Pti- 

 lella, it is because we agree with him that Pennatula borealis, Sars, 

 is so essentially different from the other Pennatulæ that it can 

 consequently no longer stand in their ranks. Our investigations 

 have, however, enabled us to extend the generic characters and 

 thereby justified still more the formation of the genus. Now with 

 regard to Sars' specific appellation „borealis" we have not been 

 able to retain it; as subsequent observations, chiefly those of Köl- 



