ORDER POLYPI POLYPIFERI. 511 
CLOLITHES, Mad. porpita, Linn., and TURBINOLOPSES, 
Lamour. Turbin. ocracea, Lamour. 
When the madrepore is branched, and there are no stars, 
but at the end of each branch, it is a CARYOPHYLLIA, Lam. 
The branches are striated ; at each star is a mouth surrounded 
with many tentacula. (Madr. cyathus, Sol. et Ell., &c.) 
OcULINA, Lam., 
Have small lateral branches, very short, which gives them the 
appearance of having stars along the branches, as at the end. 
(Madr. virginea, L., &c.) 
MADREPORA (properly so called) Zam., 
Have all their surface bristling with little stars, with salient 
edges. 
His PocrILLopoRa have in the surface small sunken stars, 
and pores in the internals. (Madr. damicornis, Esper.) 
In SERIALOPORA, the little stars are ranged in lineal series. 
(Madr. seriata, Pall.) 
ASTREA, 
Have a broad surface, most frequently convex, hollowed with 
crowded stars, each of which has a polype furnished with 
numerous arms ; but on a single range, at the centre of which 
is the mouth. (Madr. radiata, Sol. et Ell., &c.) 
When the surface is plane, or in broad laminz, sown with 
stars on one side only, the animals are named EXPLANARIA. 
(Madr. cinerascens, Sol. et Ell.) 
The PoRITES are in some sort ramous astree. (Madr. 
porites, Sol. et Ell.) 
When this surface is hollowed with elongated lines, as it 
were with valleys, separated by hillocks, furrowed cross-wise, 
the animals are MEANDRINA, Lam. 
