PROCEEDINGS OF SOCIETIES. taf i 
think, a doubt as to whether it is correct to throw them together 
as one species, the texture of the shells as well as the form of their 
mouths being very different. 
All the named varieties of Miliolina oeceur in abundance, and 
among them are great numbers of evidently distorted and mis- 
shapen specimens, which appear to me to give no help whatever by 
the way of supplying inosculating forms, but may prove useful in 
indicating facts bearing on the general development of the animals. 
Specimens with the Jast chamber, not broken, but clearly left in- 
complete, are by no means uncommon. 
