28 Dr. J. Gwyn Jeffreys’s Notes on 
cured was not great; but many of the species were extremely 
interesting. I will now proceed to mention some of them. 
All the depths having been recorded in metres, I will render 
them in fathoms by adding a twelfth part to each metre, so 
as to correspond nearly with the English yard measure, of 
which two make a fathom*. 
BRACHIOPODA. 
tTerebratula vitrea, Born. 
Very fine specimens occurred in 214 fms. ; one of them is 
1,4 inch long. An oblong variety came from 841 fms., and 
the variety sphenoidea from 217 fms. The inside ribs of the 
upper or deeper valve are sometimes visible on the outside, 
owing to the semitransparency of the shell. As to the dis- 
tribution of this and other species in space and time, I would 
refer to my papers on the Mollusca of the ‘ Lightning’ and 
‘Porcupine’ expeditions in the ‘ Proceedings ot the Zoologi- 
cal.Society of London’ for 1878, 1879, 1880, and 1881. 
CONCHIFERA. 
tAmussitum Hoskynsi, Forbes. 
From 214 to 609 fms. 
+Arca obliqua, Philippi. 
From 123 to 544 fms. Described by the author of the species 
as a Tertiary fossil. 
tArca pectunculoides, Scacchi, var. septertrionalis. 
From 337-464 fms. 
{Leda messanensis, Seguenza. 
From 217 to 544 fms. 
{tNucula cegeensis, Forb. 
From 1521-1536 fms. 
tNucula corbuloides, Seg. 
From 1521-1536 fms. 
{Limopsis minuta, Ph. 
From 217 fms. 
* The species haying a + prefixed to their names are Upper Tertiary 
fossils of Italy. 
