330 CARYOPHYLLEA OF SOUTH DEVON. 
vings of this and the other new species were executed, 
assures me he has every reason to feel convinced 
that he has more than once seen the present kind 
in the stables at Leigham. From its intermediate 
appearance as regards the Rat and Mouse, and the 
absence of other decisive peculiarities or character¬ 
istics, I have named it Mus intermedium. 
CaryophyIlea sessilis. —There is a kind of coral 
found pretty commonly off our coast, and apparently 
coming into the division of Madrepores, which is 
taken up generally from deep water attached to 
stones and old shells. Those which I have yet seen 
had their animals of a bright red, but it seems they 
are also found “ white, yellowish, orange-brown, 
and green.” This Madrepore first came under my 
observation in the end of the year 1836. Examin¬ 
ation led me to suspect that it ought to be separated 
from Caryophyllea cyathus of Fleming’s British 
Animals (Madrepora cyathus , Ellis’s Zoophytes.) 
My largest specimens are half an inch high, of a 
compressed figure, and measuring at the star four 
tenths in the largest diameter and three tenths in 
the shortest. They are generally inversely conical 
though the smallest are of nearly the same size at 
their bases as at the stars. One specimen has the 
star oval, and presents a curved figure from its base 
to the smaller end of the star. Two small specimens 
have the star nearly round. They are generally 
rough on their exteriors from the attachment of 
Serpulcc , Flustrce , and in two instances, of Lepas 
costata. All of them present longitudinal strise on 
the outside, derived undoubtedly from the three 
different kinds of lamella of the interior. The 
margin of the star is observed to project in every 
instance, and the lamella) are devoid of the ex¬ 
ternal crust for a short extent of their depth. The 
depth of the disk varies greatly, the centre of this 
spot consisting of small convolutions, or twisted 
