338 
MELICERITITES. 
Dimensions. 
Diameter of branch 
Diameter of zooecia 
Diameter of aperture 
External length of avicularia 
Disteibtjtion. 
Middle Chalk : Chatham. 
3 mm. 
•25 „ 
•12 „ 
PiGFEES. 
PI. XV. Fig. 10. A zoarium. Fig. 10a, the zoarium, nat. size. 
Fig. 105, part of the zoarium, X 16 dia. Middle Chalk : Chatham. 
Vine Coll. D. 625. 
Affinities. 
This species is allied by its zooecial characters to M. lonsdalei^ 
hut it differs by having bare zones without apertures. 
LIST OF SPECIMENS. 
D. 625. A branched zoarium (on slide), with a fragment of M. lonsdalei, 
Greg. Middle Chalk. Chatham. Vine Coll. Figd. PI. XV. 
Figs. 10a, b. 
D. 4538. A zoarium with an attached Spinopora dixoni. Chalk. S.E. 
England. Toulmin Smith Coll. 
D. 4539. A fragment of a zoarium. Chalk. S.E. England. Toulmin Smith 
Coll. 
8. Meliceritites propinqua (Marsson), 1887. 
Synonymy. 
Nodelea propinqua, Marsson, 1887- Bry. Riig. : Pal. Abh. vol. iv. p. 47, 
pi. V. fig. 1. 
Diagnosis. 
Zoarium of rather thick branches. No granules present. 
Zooecia externally are hexagonal or rhomhoidal. 
Apertures subcircular. Peristomes well raised ; suhspii’al -or 
iiTegular in arrangement. 
Avicularia twice to twice and a half as long as normal zooecia, 
with very elongated, narrow aperture. 
