12 Pol. 
POLYZO A. 
Scorpiodina, n. g. for Lepralia scorpioides, Manzoni ; id. t. c. p. 611. 
Steginopora, d’Orb., with S. ocellata, n. sp., Port Brehay, as type ; id. 
t. c. pp. 609 & 614, pi. xix, figs. 1-3 : contains also S. meudonensis and S. 
de morgani , n. spp., Meudon ; id. t. c. pp. 614-616, pis. xvii-xx. 
Thoracophora , n. g. for Disteginopora horrula , d’Orb. ; id. t. c. pp. 610 
& 619 [nom. prceocc. — Rec.]. 
Ubaghsia, n. g. for Steginopora reticulata , Ubaghs, and U. arcifera , n. sp. ; 
id. t. c. pp. 610 & 616-619, pis. xviii, figs. 4 & 5, and xx, figs. 2-4. 
Celleporid^]. 
Batopora scrobiculata, n. sp., Bavarian Tertiary, Koschinsky, p. 63, 
pi. vi, figs. 2 & 3. 
Cellepora ventricosa } C. nodulosa , n. spp., Jan Mayen, Lorenz, p. 96, 
pi. vii, figs. 14-16. 
Rhamphostomella , n. g. Oval ; zooscia arranged alternately and slightly 
prominent, with broad semicircular mouth, closed by a thin membranous 
operculum j aperture bordered below and laterally by a peristomial ele- 
vation, with a notch in the centre in which is placed an avicularium ; 
the side to which the latter is attached being prominent and often 
resembling the rostrum of a Cellepora. ; ocscia hemispherical and per- 
forated ; zoarium of one layer. For Cellepora scabra (Fabr.), R. costata 
(= C. scabra , Fab., pars) } R. spinigera (= C. plicata ) Smitt, pars), 
n. spp., Jan Mayen ; id. t. c. pp. 93 & 94, pi. vii, fig. 12. 
