© Onibrimorph”’ Cretaceous Polyzoa. 401 
1. D. cuckmerensis, sp. n. 
Type-specimen. British Museum, D. 28298; cortestudi- 
narium-zone ; Cuckmere Haven, Sussex. 
2. D. bispinosa, sp. 0. 
Type-specimen. British Museum, D. 28922; low in 
coranguinum-zone ; Hindover, N.E. of Seaford, Sussex. 
3. D. valvata, sp. n. 
Type-specimen. British Museum, D. 4964; Lower Seno- 
nian ; Chatham, Kent. 
4, D. [ Cribrilina] claviceps (Brydone), 1910, Geol. Mag. 
dec. v. vol. vii. p. 390, pl. xxx. figs. 2-5 ; Senonian ; 
England. Interpreted according to specimens from 
the coranguinum-zone, in the collection of Mr. G. E, 
Dibley, and identified by Mr. Brydone as this species. 
5. D. bicuspis, sp. n. 
Type-specimen. British Museum, D. 21202; coranguinum- 
zone ; Wooburn Green, Bucks. 
6. D. binoculata, sp. n. 
Type-specimen. British Museum, D. 8167 ; coranguinum- 
zone ; Gillingham, N.E. of Chatham, Kent. 
7. D. biforis, sp. n. 
Type-specimen. British Museum, D. 8362; cortestudi- 
narium-zone ; Luton, 8.E. of Chatham, Kent. 
II, Grtsopora, gen. nov. 
Genotype. G. protecta, sp. n. Type-specimen. British 
Museum, D. 15421; mucronatus-zone ; Riigen, Germany. 
E. Otoporide, fam. nov. 
Multiserial Cheilostome Polyzoa in which the intra- 
terminal front wall consists of arched tapering spines that 
may be quite separated lateraily, and merely overlapping 
those of the opposite side in the middle line, without fusion, 
