CELLULARIID.E. 19 



§ I. AETICULATA. 



H 2. MULTICELLULARES. 



Fam. I. CELLULARIIDJE, Busk. 



Genus 1. ScRUPOCELLARiA, Fan Beneden. 



Cellulis rlioraboidalibus, postice sinuatis ; angulo cellulse superiore aviculario sessili, 

 armato ; vibraculo in sinu dorsali posito ; apertura spinis marginalibus supra armata, 

 operculo pedunculate subinde tecta. Cellulis biserialibus, in singulo internodio 

 nunierosis. 



Cells rhomboidal, with a sinus behind; a sessile avicularium on the upper and outei 

 angle ; a vibraculura seated in the dorsal sinus ; aperture, with marginal spines above ; 

 sometimes protected by a pedunculate operculum. Cells biserial, numerous in eacli 

 internode. 



ScRUPOCELLAiUA, Van Beneden, Recherches, &c., p. 42 ; Busk. 



BiCELLARiA (sp.), Blainville. 



Cellularia (sp.), Pallas ; Fleming ; Johnst. 



Cellaria (pars), Solander and Ellis. 



ScRUPARiA (sp.), Oken. 



Bactrtdium, Reuss., Foss. Polyp., d. Wien. Tertiarbeck, p. 55. 



L. S. scRUPosA (?) Zin. PI. T, fig. 6, 



Cellulis subelongatis, angustis; apertura elliptica, 8 — 4 spinis marginalibus supra 

 armata ; ovicellula glabra. 



Cells subelongate, narrow ; aperture elliptical, with three or four marginal spines 

 above ; ovicell smooth. 



Sert. SCRUPOSA, Linn. 



Cellularia scruposa, Pallas, Johnston. 



ScRUPOCELLARiA SCRUPOSA, F. Beneden, I. c, pp. 43 and 50, pi. v, figs. 8—16. Busk, 



Ann. Nat. Hist., 2 ser., vii, p. 85, pi. ix, figs. S, 10. Brit. 



M. Cat., part i, p. 25, pi. .xxii, figs. 3, 4. 



