334 
MELICERITITES. 
in large, expanded cells. The branching is dichotomous, and 
the branches end bluntly. 
Apertures f[uincuncial or in transverse rows. The apertures in 
well-preserved specimens arc semi-elliptical, the lower edge 
being straight. The peristomes are well raised. In woim 
specimens the apertures are larger and oval. 
Avicularia : the avicularian zooecia arc as large as the nonnal 
zooecia. The aperture is a long, thin slit, expanded into 
a triangular pore below. 
Tubercles frequently present above the avicularian aperture. 
Dimexsioxs. 
Diameter of zooecia 
Diameter of aperture 
Fide Pergens. 
*22-*26 mm. 
12 X -12--14 „ 
Disteibetiox. 
Foreign* : 
Senonian — Maastrichtian : ^Maastricht ; Petit Lanaye ; Fauquemout ; 
Meudon ; Poyau, Charente-Inferieure. 
Campanian : Riigen ; Gehrden. 
Santonian: Saintes. 
Coniacian: Lavardiu, Les Roches, Vendome, etc., Loir- 
et-Cher ; St. Paterne, La Ribochere, Tours, and Saint- 
Christophe, Indre-et-Loire. 
Turonian — Angoumian : Merpins and Cloutier, Charente. 
LIST OF SPECIMENS. 
D. 1282. Two fragments (on slide). Maastrichter Kreide. Petit Lauave. 
Vine Coll. 
D. 3571. A worn, branched specimen (on slide). Maastrichter Kalk. 
^[aastricht. Van Breda Coll. 
D. 3718. Two branches (in tube). Maastrichter Kreide. Maastricht. Gamble 
CoU. 
D. 3399. Three fragments (on slide). The specimens have been cut transversely 
and longitudinally, showing the central axis and peripheral zone 
of broad zooecial chambers. Maastrichter Kreide. Maastricht. 
Van Breda Coll. 
? D. 3398. Three worn branches (on slide). Maasti’ichter Kreide. Maastricht. 
Van Breda CoU. 
D. 4461. Four fragments in the condition verrucosa, Quadi’atenkreide. 
Gehrden, Hannover. 
D. 3400. Twelve worn fragments. Maasti'ichter Kreide. Maastricht. Van 
Breda CoU. 
?D. 3729. Two fragments determined as Filicea velata by M. Pergens. 
‘ Senonian.’ St. Paterne, Indre-et-Loire. Gamble CoU. 
