300 MR. W. D. LANG ON GROWTH-STAGES [ Mar. 2, 
5. PARASMILIA GRAVESI Edwards & Haime. (Text-fig. 43.) 
Parasmilia centralis (Mantell), sub-species gravesana Edwards 
& Haime, Duncan, 1869, “ British Fossil Corals,” Mon. Pal. 
Soc. p. U2 spliwva tie .08 
In the absence of the type-specimen it is necessary to take 
Duncan’s interpretation of this species, and the specimen he 
figured, B.M. no. R. 6616, is here described as P. gravest Kdwards 
& Haime, on the assumption that Duncan was correct in his 
determination. 
Text-fig. 43. 
PARAS/ULIA GRA VEST fiwards & Haime. 
MW. 
2 10 G?- = 5 
/o Qa 
Be 
&. 
fe 
ay ee CYLINDRICAL STAGE . 
E3. Y __ REJUVENESCENCES . 
G! TROCHOID STAGE . 
: — RES UVENES CENCE 
E. ; TROCHOLD STAGE. 
ES 
SRN Mant hy 
a ; EESERCE 
TROCHO/D 
STAGE. 
D. | 
Ge 
e-em Wa EDUNCLE STAGE. 
ae WIE 
Costal stages in P. gravesi Edwards & Haime. 
Duncan’s figured specimen, B.M. no. R. 6616. X 2. 
Specimen No. R. 6616 carries the modifications of P. fittoni 
exhibited in P. granulata still further. Costal-stage VII. (when 
once established for both height and ornament) is hurried through 
and hardly appears ; costal-stage VIII. is important ; and costal- 
stage IX. is actually attained. There is a very prolonged kata- 
genesis in the height of the costa from costal-stage VI. to costal- 
