438 
ADDENDA. 
After 186, add : 
BICRISINA, d’Orbigny, 1853-4. 
[Bry. Cret. p. 909.] 
Diagnosis. 
Crisinae with laterally compressed brauclies ; the zoariiim is not 
reticulate. The apertures are in vertical seiies, alternately 
long and short. The interzooeeial sutures are widened into 
pore-like cavities. There is no reverse axis. 
Type Species. 
Reticulipora enUrata, d’Orbigny, 1850. Senonian: France. 
Affinities. 
The genus is allied to Reticrhina^ but it differs mainly by having 
the broadened, pore-like sutures of Hulcocava. 
1. cultrata (d’Orbigny), 1850. 
Stn. RetieuUpora cultrata^ d’Orbigny, 1850. Prod. Pal. vol. ii. p. 265. 
,, ,, d’Orbigny, 1851. Biy. Cret. pi. 611, figs. 6-10. 
Bicrisina ,, d’Orbigny, 1853-4. p. 909, pi. 768, figs. 11-15. 
,, ,, Pergens, 1890. Revision, p. 356. 
Idmonea ,, Bucaille, 1890. Bry. Cret. Seine-Inf. : Bull. Soc. 
Sei. nat. Rouen, vol. xxv. p. 510. 
Distrib. — S enonian : Cliarente-Inferieure. 
2. gaudryi, Pergens, 1890. 
Syn. Bicrisina gaudryi, Pergens, 1890. Revision, p. 356, pi. xiii. fig. 2. 
Char. — Branches A’ery flattened. Peristomes low. Massive reverse axis. 
Distrib. — Senonian : France. 
p. 192, to Synonymy add : 
Idmonea divaricata, Ubaghs, 1888. Compt. Rend. Exc. : Bull. Soc. beige GeoL 
Tol. i., Mem. p. 221. 
p. 200, after line 3 add : 
BeptotuUgera Jiliformis, Bucaille, 1890. Bry. Cret. Seine-Inf. : Bull. Soc. Sci. 
nat. Rouen, vol. xxv. ji. 510. 
p. 207, to Synonymy of species 10 add: 
Idmonea siibgradata, Bucaille, 1890. Bry. Cret. Seiue-Inf. : BuU. Soc. Sci. nat. 
Rouen, a oI. xxv. p. 510. 
