ON CAEBONirEEOUS ENCEINITES. 481 



the sixth axillary one are two plates adhering laterally to each 

 other; £*bove this the arms are free and composed of a double 

 series of joints which are closely tentaculated. 



The stem is cylindrical, and composed of alternately thicker and 

 thinner joints, but the difference is not great. 



It appears to have been of great length in proportion to its thick- 

 ness, as a detached stem, apparently of this species, is over a foot 

 long and shows no signs of head or side arms. 



The alimentary canal is small and apparently circular, the 

 fibriferous area is pentapetalous. Height of calyx '7 inch; from 

 base to top of arms two inches; width of calyx '9 inch. 



This species is evidently very local, as the British Museum has only 

 one very bad specimen ; Jermyn Street Museum none ; and Major 

 Austin two from this neighbourhood, also in poor condition. 



Miller's specimens have unfortunately disappeared from the 

 Bristol Museum. 



It is a question whether this species should be called verm. 

 Miller's figure (Crinoidea, plate /., fig. 1) is from a drawing sent 

 him by Mr. Stokes, of Dudley, and is a Silurian fossil, quite dis- 

 tinct from the Carboniferous one, and probably belongs to another 

 genus. If they belong to the same genus, one of the two must 

 evidently be re-named. Professor Phillips applied the name verus 

 to the Silurian species, and did not believe that this species was 

 found in the Carboniferous Limestone at all. 



Professor De Koninck also writes to me that the name verus must 

 be retained for the Silurian species, as it appears in all lists of 

 Silurian fossils. 



On the other hand it is quite certain that Miller founded his 

 genus on the Carboniferous species, as his detailed drawing of the 

 plates agrees exactly with the one exhibited. In Morris' catalogue 

 it is quoted as Carboniferous, but with a note on Phillips' view. 



If the Silurian species really belongs to another genus they may 

 both retain the name. Major Austin believes that none of the 

 Silurian genera of Encrinites survived in Carboniferous times. I 

 have not seen the Silurian specimen, and, therefore, cannot speak 



