-~") 
ON RECENT POLYZOA. 523 
9, Bugula fruticosa, Packard (sp.) (op. cit. p. 233) 
= B. Murrayana, var. fruticosa, Hincks 
= Menipea fruticosa, Packard. 
But in a note (p. 233 op. cit.) Mr. Busk says: ‘ Since 
the above was in type Iam more inclined to agree with 
those who regard B. fruticosa as a variety of B. Murray- 
ana.’ 
10. »,  uniserialis, Hincks, ‘ Annals,’ May 1884, p. 367, pl. xiii. 
fig. 8. oc.: Victoria, Australia. 
At a meeting of the Scientific Society of Christiana, March 1867, 
D. C. Daniellsen gave an account of two new forms of Polyzoa, which he 
called Kinetoskias. In his notes on a form (‘ Quart. Jour. Mic. Soc.’ 
yol. xxi. new series) Mr. Busk has made several references to a form 
closely allied to Bugula (Kinetoskias, Kor. & Dan.). Many interesting 
particulars are given by Mr. Busk in this paper, which the student will 
do well to refer to. In this Report I will give the results arrived at by 
the author. 
1867. Bugula umbella, Smitt. 
1873. Naresia cyathus, Sir C. W. Thomson. 
Bugula Smittii, Sars. 
Speaking of the genus Naresia, Sir C. W. Thomson, several speci- 
mens of which are in the Challenger collection—one procured from a 
depth of 2,650 fathoms—Mr. Busk says: ‘ The different forms constitute 
certainly three—and, as I am inclined to think, four—distinct and well- 
characterised species; but they all agree in certain very peculiar charac- 
ters, which would seem to be almost, if not quite, sufficient to render the 
group composed of them of generic value, or at any rate to rank asa 
distinct sub-genus of Bugula. To this genus or sub-genus the appellation 
bestowed upon it by Koren and Daniellsen obviously has priority over 
Naresia.’ 
1. Bugula (Kinetoskias) Smittii, Dan. 
= Kinetoskias Smittii, Kor. & Dan. 
= Bugula Smittii, Sars. 
2. » (Kinetoskias) aborescens, Dan. 
= K. arborescens, Kor. & Dan. 
= Bugula umbella, Smitt. 
3. »,  (Kinetoskias) cyathus, Sir C. W. Thomson 
= Naresia cyathus, Sir C. W. Thomson 
=K. Smittii, Kor. & Dan. 
4. »  (Kinetoskias) pocillum, Busk, ‘ Quart. Jour. Mic. Soc.’ 
(op. cit.) 
In addition to descriptions of all these species Mr. Busk draws atten- 
tion to the peculiar cell structure, and also gives an elaborate account of 
the radical tubes or fibres of the same. 
In the ‘Challenger Report’ Mr. Busk modifies the definition of 
Bugula so as to admit the new forms described by him in it. 
Zocecia bi- or multi-serial, closely contiguous and united, arising in 
continuous series each from the back of the subjacent one. Aperture 
partial or entire. Avicularia, when present, always on the anterior 
aspect of the zocecia.— Busk, p. 37. 
