1909. ] IN BRITISH SPECIES OF CORALS. 303 
have disappeared from their sides (text-fig. 44, E, costal-stage 
IX.); intercostal dissepiments are still pr esent. Rejuvenese ence 
now occurs and the corallum ends with resumption of growth 
in costal-stage VIII. (text-fig. 44, D*), Probably the Gylindrie: al 
shape-stage begins in this specimen after the first rejuvenescence. 
7. PARASMILIA CyLINDRICA Edwards & Haime. (Text-fig. 45.) 
Parasmilia cylindrica Edwards & Haime, 1850, “ British Fossil 
Corals,” Mon. Pal. Soc. p. 50, pl. viii. fig. 5. 
B.M. nos. R. 13889 & R. 6614. 
Text-fig. 45, 
PARAS/ILIA 
CYL/NDRICA , Epwarns &HAIME. 
Gir 
Bis CYLINDRICAL 
STAGE. 
c* MANY 
B REJUVENESCENCES. 
C3 
BX REJUVENESCENCE. 
Cc -RESVENESCENCE. & 3 
3B ~REJUVENESCENCE. bs . 
a -Revenescence. ™ S 
A S 
5 ae 
IG 
Costal stages in P. cylindrica Hdwards & Haime. 
B.M. nos. R. 18889 & R. 6614. > 1h. 
The type-specimen of this species, from the Norwich Chalk, is 
stated, by Edwards and Haime, to have been in the ‘ collection — 
of Mr. J. 8. Bowerbank.” Though the Bowerbank Collection was 
acquired by the British Museum in 1865, this specimen has not 
been found. The species, however, is well-marked and easily 
