MULTICRESCIS. 
207 
Fig. 53, p. 206. Part of a vertical section through, another 
zoarium ; X 6| dia. IS'eocomian: Goslar. Krantz Coll. D. 7075b. 
Fig. 54. A thin vertical section showing three layers out of 
the seven in the section (m. = mesopores) ; X 6f dia. I7eocouiian : 
Berklingen. Saemann Coll. D. 11,827. 
Affinities. 
M. de Loriol le Fort’s JR,, neocomiensis agrees in all essentials 
with this species, and it was founded on a zoarium from Mt. Saleve, 
24 mm. in diameter and 21 mm. high, with a pointed base and 
rounded, smooth upper surface. 
Fig. 54 . — MultxcresciH tuherosa. Part of vertical section; x 6f. D. 11,827. 
The name Polytrema suUuherosa was given by d’Orbigny in 1850 
to the second figure numbered 8 on Homer’s pi. xvii., which is 
Multicrescis tuherosa. But later on (Bry. Cret. p. 993) d’Orbigny 
made the name suhtuberosa a synonym of the species represented 
on the correct figure Ko. 8 of the same plate, which is the 
Radiopora heteropora, d’Orb. This change in opinion by d’Orbigny 
is clear, as in 1850 his species suhtuberosa was founded for the 
JBJeteropora tuherosa, Bom. ; whereas in 1854 the name suh- 
tuherosa was dismissed (d’Orb. Bry. Cret. p. 993) as a synonym of 
Radiopora heteropora. 
The worn specimen from Geovressiat, near IS’antua, Ain, identified 
by d’Orbigny with the Heteropora tuherosa, Bom., in 1850, and 
with Radiopora tuherosa in 1852, is not quoted by Pergens, and is 
here referred (p. 284) to Radiopora neocomiensis (d’Orb.). 
Bomer’s Heteropora tuherosa of 1840 is clearly intended for the 
species he had thus founded in 1839 ; but d’Orbigny (Bry. Cret. 
p. 993) separated Bomer’s 1840 reference and included it in 
