ART. 22. CYCLOSTOMATOUS BRYOZOA CANU AND BASSLEE. 87 



The species described as Melicerltites pyrenaica by Levinsen is 

 certainly the same as M. aspera. The material was furnished him 

 by Canu and error in the labeling was probable. 



The species of D'Orbigny's group Foricula are very easy to recog- 

 nize exteriorly by the punctations arranged irregularly between the 

 aj^ertures. These small pores are little apparent in tangential sec- 

 tions and they are not visible in longitudinal sections. They are 

 apparently produced simply by irregularities of calcification as 

 Levinsen has already mentioned. 



The group Foncvla appears to be characterized by the presence 

 of diaphragms in the tubes, visible in the longitudinal section but we 

 do not believe that these diaphragms are of generic order. 



Occurrence. — Cretaceous (Coniacian) : Villedieu (Loir-et-Cher), 

 Tours and Saint Paterne (Indre-et-Loire), and Phelippeaux (Char- 

 ente), France. 



Cretaceous (Campanian) : Brossac, Piaud and Roux (Charente), 

 France. 



MELICERITITES (FORICULA) SPINOSA D'Orbigmy, 1852. 



1852. ForicuJa spinosa d'Orbigny, Paleontologie frangaise, Terrain CretacS, 

 vol. 5, p. 659, pi. 742, figs. 6-8. 



This species is very common in the Charentes and we believed it 

 worth while to give its geological distribution. 



Occurrence. — Cretaceous (Campanian) : Deviat, St. Bonner, St. 

 Medard, Chez Beron, Saint Aulais, Courgeac, Echebrune-Meussac, 

 and Montmoreau, France. 



Maastricht ian (Dordonian) : Chillac, Eoux, Fouchalon, Manie- 

 Roux, Bessac, Sainte-Leur, Chez-Beron, D'Archiac, and Manie- 

 Mulon, France. 



Genus SEMIMULTELEA D'Orbigny, 1852. 



SEMIMULTELEA ESCHAROmES Goldfuss, 1827. 



Plate 13. figs. 5-7. 



1827. Cellepora escharoidcs Goldfuss, Petrefacta Germaniae, vol. 1, p. 28, 

 pi. 12, fig. 'Sa^c. 



{ //rt=0.12 mm. 

 Apertures .^7 „ . . 

 ^ Z«=0.14mm. 



Measurements. 



Facettes 

 . Eleocellaria 



A/=0.50 mm. 

 7/— 0.22 mm. 



/>— 0.64 mm. 

 ?=0.28 mm. 



Although this species is found frequently in the collections of 

 the principal museums of Europe, it is always represented by very 

 20107— 22— Proc. N. M. vol. 61 37 



