“Oribrimorph”” Cretaceous Polyzoa. tit 
II. Paired avicularia large and (? always) meet 
over the apertural bar. 
a, (Kcia smaller, 1 mm. or less .......... 5. B. ranunculus. 
6. Cécia larger, more than 1 mm. 
1. Ccia larger, twice as long as broad .. 6. B. aurita. 
2. Gicia squatter, little longer than 
broad. 
a. Apertures wider; erect, unilaminar . 7. 
8. Apertures narrower; incrusting.... 8. 
B. Aperture nearly as large or as large as the 
intraterminal front wall; a secondary front 
wall is attained. 
I. Length rather less than 1 mm.; coste 
about 6 or 7; intercostal fusions about 3.. 9. B. hyla. 
II. Length rather more than 1 mm.; costze 
about 4or5; intercostal fusions about 2.. 10. B. ornata. 
B. coaxans. 
B, convexa. 
Unplaceable, but probably a Batrachopora, Cellepora 
(Discopora) signata, von Hagenow, 1851, Bry. Maastr. 
Kreid. p. 96, pl. x. fig. 17 ; Maastrichtian ; Maastricht. 
1. B. [Cribrilina] perforata (Marsson), 1887, Pal. Abh. 
vol. iv. Heft 1, p. 98, pl. x. fig. 11; mucronatus-zone ; 
Riigen, Germany. 
2. B. | Semiescharipora | ovalis (d’Orbigny), Pal. Franc. 1852, 
pl. 719. figs. 13-16, 1853, p. 488; Senonian [ Maas- 
trichtian] ; Royan, France. 
3. B. royanensis, sp. 0. 
Ty pe-specimen. In the collection of M. Canu (a photograph 
of type-specimen in British Museum); Maastrichtian ; 
Royan, France. 
4. B. crassa, sp. 0. 
Type-specimen. British Museum, D. 16674 ; mucronatus- 
zone; Riigen, Germany. ; 
5. B. ranunculus, sp. n. 
Type-specimen. British Museum, D. 28838 ; mucronatus- 
zone; Rigen, Germany. 
6. B. aurita, sp. n. 
Type-specimen. In the collection of M. Canu (a photograph 
of type-specimen in British Museum); Maastrichtian ; 
Royan, France. 
7. B. coaxans, sp. n. 
Type-specimen. British Museum, D. 14209; mucronatus- 
zone; Riigen, Germany. 
