156 
Rev. T. Hincks on the 
STEGANOPORELLA, Smitt. 
Species new to Britain, S. Smitt ii, mihi (= Memhranipora 
andegavensis , Busk, 1 Crag Polyzoabut not, I believe, the 
Eschara andegavensis of Michelin). 
Setosella, Hincks. 
Fam. 10. Cribrilinidae. 
Genera: Cribrilina, Gray. 
Type C. radiata , Moll. 
Membraniporella, Smitt. 
Type M. nitida , Johnston. 
Fam. 11. Microporellidas. 
Genera: Microporella, Hincks. 
Type M. ciliata , Pallas. 
DlPORULA, nov. gen. 
Zooecia calcareous, without a membranous area or raised 
margins ; orifice arched and expanded above, contracted below, 
and slightly constricted by two lateral projections (horseshoe- 
shaped), lower margin straight and entire ; a semilunate pore 
on the front wall. Avicularia. Zoarium (in the only British 
species) erect, with cylindrical branches. 
Type D. verrucosa , Peach. 
Chorizopora, nov. gen. 
Zooecia without a membranous area or raised margins, more 
or less distant, connected by a tubular network ; orifice semi¬ 
circular, with the inferior margin entire; no special pore. 
Type C. Brongniartii , Audouin. 
Fam. 12. Porinidse (part.), D’Orbigny. 
Genera : Porina, D’Orbigny. 
Anarthropora, Smitt. 
Lagenopora, Hincks. 
? Celleporella, Gray. 
Including C. lepralioides , Norman, and C. pygmcea y id. 
I feel very doubtful as to the true position of these forms. 
