(453) 



XX. — Report on the Pennatulida dredged by H.M.S. "Porcupine." By 

 A. Milnes Marshall, M.D., D.Sc, M.A., F.RS., Beyer Professor of 

 Zoology in the Owens College; and G. H. Fowler, B.A., Ph.D., Berkeley 

 Fellow of the Owens College, Manchester. Communicated by John 

 Murray, Esq. (Plates XXXL, XXXII.) 



(Read 4th July 1887.) 



Introduction. 



The Pennatulida obtained on the cruises of the " Porcupine " during the 

 summers of 1869 and 1870 comprise representatives of seven genera and nine 

 species, of which one genus [Deutocaulon), and one variety (candida) of Penna- 

 tula phosphorea, are new to science. 



The following table exhibits the distribution and number of specimens of 

 the various forms : — 



Station. 



Locality. 



Date. 



Depth, in 

 fathoms. 



Name. 



Number 



of 



specimens. 



1. 



24. 



36. 

 47. 

 52. 

 54. 

 57. 

 61. 

 90. 



51° 51' N.-ll 50' W. 



56° 26' K-14° 28' W. 



48° 50' K-ir "9' W. 



59° 34 K- 7° 18' W. 

 60° 25' N.- 8° 10' W. 

 59° 56' K- 6° 27' W. 

 60° 14' K- 6° 17' W. 

 62° V K- 5° 19' W. 

 59° 41' K- 7° 34' E. 

 Loch Scavaig, Skye. 



1869 



1869 



1869 

 1869 

 1869 

 1869 

 1869 

 1869 

 1869 

 1869 



110 

 109 



» 



725 

 542 

 384 

 363 

 632 

 114 

 458 

 45-60 



Svava glacialis 

 Deutocaulon hystricis 

 Pennatula phosphorea (?) 

 Deutocaulon hystricis 

 Protoptilum Carpenteri 

 Kophobelemnon stelliferum 

 Pennatula phosphorea 

 Funiculina quadrangularis 

 Kophobelemnon stelliferum 

 Pennatula phosphorea 

 Kophobelemnon stelliferum 

 Pennatula phosphorea 



1 



4 

 4 

 1 

 2 

 5 

 1 

 1 

 2 

 3 

 4 

 1 



6. 

 31. 



48° 26' N.- 9° 44' W. 



35° 56' K- 7° 6' W. 



Tangier Bay. 



1870 

 1870 

 1870 



358 



477 

 35 



Penuatula phosphorea 

 Pennatula phosphorea (?) 

 Pteroides griseum 

 Pennatula rubra 



2 

 2 

 8 

 2 



Works on the subject, to which reference is made, are indicated by 

 figures in heavy type throughout, and a list of them is appended. 



For the terms " polyp " and " zooid," long admitted to be unsatisfactory, and 

 indicating the completely and incompletely developed members of the colony 

 respectively, we have preferred to use " autozooid " and " siphonozooid," terms 

 first suggested by Professor H. N. Moseley (1, p. 118). 



VOL. XXXIII. PART II. 3 X 



