344 
MELICEBITITE8. 
LIST OF SPECIMENS. 
British. 
D. 358. A branch on slide with fragment of Nodelca durobrivensis. Middle 
Chalk. Chatham. Gamble Coll. Figd. No. 40. 
Foreign. 
B. 4817. Three fragments (on slide). Turonian : Craie tuffeau. Villardin 
Station, Loir-et-Cher. Purchased 1898. 
13 . Meliceritites doUfusi, Pergens, 1890. 
Synonymy. 
Meliceritites dollfusi, Pergens, 1890. Revision, p. 395, pi. xiii. fig. 4. 
^ Entalophora 7neudonensis, d’Orbigny, 1851. Bry. Cret. pi. 623, figs. 8-10. 
Meliceritites „ {ex. syn.), d’Orbigny, 1853. Ibid. p. 622. 
non ,, ,, Staring, 1860. Bod. Nederl. vol. ii. p. 396. 
Diagnosis. 
Zoarium of brandies, about 2 mm. in diameter, wbicb divide 
dicbotomously. The branches are formed of longitudinal 
series, each containing about a dozen zooecia. 
Apertures well raised, subcircular to subtrigonal. AiTanged in 
regular whorls or spirals, but irregular in places. Peristomes 
well raised. 
Avicularian zooecia twice as long as the normal zooecia. The 
depression for the mandible is spatulate and narrow in the 
middle. 
Dimensions. 
Diameter of branch ... 
Diameter of zooecia ... 
Diameter of aperture ... 
Length of avicularium 
Disteibtjtion. 
Senonian — Maastrichtian : Meudon ; Royan. 
Santonian: Saintes, etc., Charente-Inferieure. 
Coniacian : Vendome, Lisle, etc., Loir-et-Cher ; Tours 
and Joue, Indre-et-Loire. 
Turonian — Angoumian : Merpins, Charente ; Villardin and St. Rimay, 
Loir-et-Cher. 
Affinities. 
The Meliceritites meudonensis (Orb.) appears to be the worn 
condition of M. dollfusi^ in which the apertures have become more 
triangular owing to the lowering of the peristomes. Pergens i 
Fide Pergens. 
1-5-2 mm. 
•3--34 „ 
•12--14 X -18 „ 
