ofAnnalida. 341 



taceous appendages to the gizzard, as in those which are without 

 them. 



In addition to what the Rev. R. T. Lowe has observed in the 

 9th number of the Zoological Journal rtspecting the minute Cepha- 

 lopoda of Lamarck, and in confirmation of Mr. Gray's idea, that 

 most of thorn belong to the Annelida, I have to state that in August 

 Last I obtained alive from Fuci the Vcrmiculum intortum, V. sub' 

 rotundum, and the y. bicorne of Montagu, which I believe 

 answer to Lamarck's Miliola planulata, M. planulata b. iur- 

 gidula, and M. trigonula ; and at the same time, a species new to 

 the British collector, which I consider to be Lamarck's Miliola 

 planulata c. pianissimo. These shells I immediately immersed in 

 sea water, and on my return home I placed some of them, still 

 adhering to bits of Fuci, in my watch glass in water ; I then clearly 

 perceived the animal to protrude a part of its body, on the sides 

 of which I thought I could discover a plumose appendage, but from 

 the extreme minuteness of the part, and the want of power in my 

 lens, though one of Dollond's best, I was not enabled to make 

 out satisfactorily the nature of the organs. On grinding down 

 the shell, the animal was clearly to be seen of a red colour filling 

 up its cavities. These facts I conceive decidedly prove that the 

 JMiliolw, which have hitherto been thought to be enclosed in an 

 animal, are external shells, and inhabited by their animals ; and 

 as these are of a red colour, it may be presumed they belong to 

 the Annelida, as Lamarck and Savigny state the animals of that 

 family to have red blood. 



When the Discorbis vesicularis, (Serpula lobata, Montagu,) 

 which is an external sessile chambered shell, and is found alive in 

 great quantities on shells and Hydrophytes, is examined imme- 

 diately after being taken from its native element, the animal 

 appears of a red colour, and its segments, filling up the chambers, 

 may easily be perceived through the tenuity of the shell. I have 

 therefore very little doubt but it will prove to be one of the 

 Annelida. The same red appearance of the animal 1 have observed 

 in the Nautilus Beccarii when adhering to Pectens. 



There is also another circumstance attached to the elongated 



