Cretaceous Species of Podoseris, Dune. 25 
List of Cretaceous Podoseride. 
1. Podoseris elongata, Dunc. (op. cit. p. 25). 
2. mamilliformis, Dune. (op. cit. p. 25). 
3. —— affinis, sp. nov. 
4, —— anomala, sp. nov. 
5. —— Jessont, sp. nov. 
6. —— brevis, sp. nov. 
ae dubia, sp. nov. 
Reconsideration of the old and Description of the new Species. 
Podoseris elongata, Dune., was described in the Monogr. 
Brit. Foss. Corals, 2nd ser., Pal. Soc. 1869, Cret. Corals, pt. ii. 
no. 1, p. 26, pl. ix., and now requires some reconsideration on 
account of the discovery of some very interesting varieties. 
in one form, lately examined, the attached base is not so wide 
as the calice, whilst in the type the reverse occurred. This 
variation in the relative breadth of the calices is due to the 
coral having died at a particular stage of growth, and it can 
readily be imagined, after examining a tall corallum which 
has constrictions and enlargements of its otherwise cylindrical 
body, that calicular growth must have occurred both when 
the body was narrow and when it was broad. This variation 
in the breadth of calices is seen in many of the simple corals 
of the present day. 
The septa are numerous and the greater number of them 
are long, stout, close, often uniting with a neighbour far 
inwards, or the union may not occur in all systems. Many 
septa, mainly formed by the union of others, reach the axis 
and join, forming with a very small amount of interseptal 
tissue a columella, which is usually seen at the bottom of the 
central fossula or which may project. The coste were admi- 
rably drawn by De Wilde in pl. ix. of the memoir noticed 
above, and also the remarkable nodules shown on their 
flanks. These more or less wedge-shaped bodies are nume- 
rous and are either projected transversely or obliquely towards 
the neighbouring costa or septum. They rarely unite 
with these as stout synapticule directly, but interdigitate or 
are united by thin dissepimental ends, either with the corre- 
sponding bodies or with the opposed costa or septum. The 
synapticule are both stout and thin between the septa, but 
large ones are not common. The epitheca is sometimes pre- 
served and is incomplete and in bands; it allows the alter- 
nately large and small coste, the intercostal spaces, and even 
the synapticule to be recognized, and may be granular. 
