ENTALOPHORID^. 
299 
Char. — Zoarium circular, about 2-4 mm. in diameter and 1-5 mm. high. It ha& 
a short blunt stem. The upper surface is concave, and is covered with the 
oblique or crescentic apertures of the zooecia. The normal apertures are on 
a vertical edge, •5 mm. in thickness, on the rim of the zoarium. The 
apertures there are small, crowded, and multiserial ; there are about four to 
five apertures in the height of the rim. 
Distrib. — Senonian — Campanian: Kiigen. Mukronaten-Kreide : Lagerdorf, 
Schleswig-Holstein {fide Stolley). 
Aff. — It differs from the typical forms of Clypeina by the apertures along the 
rim being multiserial, and the apertures being distributed over the whole 
upper surface ; in its nearest ally, C. costata, the apertures on the upper 
surface are fewer and more widely spaced. 
After Vol. I. p. 284 : 
HAPLOCECIA, Gregory, 1896. 
Revision Brit. Jur. Bry. pt. v. : Ann. Mag. Nat. Hist. ser. 6, vol. xvii. p. 199 ; 
B.M. Cat. Jur. Bry. p. 157. 
Diagnosis. 
Entalophoridae in which the distal ends of the zooecia are 
angular and usually hexagonal. Peristomes never greatly 
raised. Apertures small. The zooecia are arranged in trans- 
verse linear series or quincuncially. 
Type Species. 
Haplocecia straminea (Phillips), 1829. Bathonian. Millepora 
bed, Yorkshire Coast, near Scarborough, and ranging from the 
Cornbrash to the Bajocian. 
Affinities. 
This genus has been discovered in the Cretaceous by M. Pilliozat, 
who places it among the Eleidae ; and that it is intermediate 
between the Entalophorids and Eleids appears most probable. 
M. Filliozat describes it as operculate, but the evidence in favour 
of this view appears to me inadequate, and the genus is therefore 
here left with the Entalophoridae. 
Haplooecia annulata, Filliozat, 1908. 
Syn. Haplooecia annulata, Filliozat, 1908. Bry. cret. Vendome : Bull. Soc. 
geol. France, ser. 4, vol. vii. p. 396, pi. xiii. fig. 7. 
Char. — Zoarium with branches up to 2 mm. in diameter. Apertures in 
horizontal linear series. Apertures ‘14 mm. in diameter. 
Distrib. — Turonian — Angoumian : Zone of Catopygus ebrayi, Besse, Sarthe ; 
Zone of Terebratulina bourgeoisi, Troo and Lavardin, Loir-et-Cher. 
D. 4923 . A stem (on slide). Turonian — Craie marneuse. Villardin (? Lavardin). 
Purchased F. H. Butler, 1897. 
