454 dr a. milnes marshall and mr g. h. fowler on 



Classification. 



The classification given by Kolliker (2, p. 33), and condensed below, 

 exhibits the systematic relations of the forms obtained by the "Porcupine." 

 While this classification is the most recent and the best yet arranged, we 

 cannot regard it as entirely satisfactory, for it is founded without due regard to 

 morphological distinctions, and on characters which are rather accidental than 

 essential. By it closely allied forms, e.g., Protocaulidce and Virgularidce, 

 appear to be far too widely separated. To rearrange the Pennatulida, however, 

 were premature, till new and intermediate forms have been recorded, and a 

 more thorough investigation of the anatomy and life-history of the group 

 effected. 



Order PENNATULIDA. 



Section I. Pennatulile : autozooids fused together to form leaves. 

 Subsection i. Penniformes : leaves well developed. 

 Family 1. Pteroididse : Pteroides griseum. 



2. Pennatulidse : Pennatula phosphorea. 

 Pennatula rubra. 



Subsection ii. Virgulariece : leaves small. 

 Family 1. Virgularidse : Svava glacialis. 

 2. Stylatulidae. 



Section II. SpicattE : no leaves, autozooids sessile. 



Subsection i. Funiculinece : autozooids in distinct rows. 

 Family 1. Funiculinidoe : Funicidina quadrangidaris. 



2. Stachyptilidse. 



3. Anthoptilidae. 



Subsection ii. Junciformes : autozooids in single series, or indistinct 

 rows. 

 Family 1. Kophobelemnonidse : Kophobelemnon stelliferum. 



2. Umbellulidae. 



3. Protocaulidae : Deutocaulon hy strict*. 



4. Protoptilidee : Protoptilum Carpenteri. 



Section III. Renille^e. 

 Section IV. Veretille^e. 



