SELENAEIID^E. 85 



Genus 1. CUPULARIA, Lamx. 



Cellulis singulis vibraculum apice gerentibus. 



Each cell throughout the polyzoarium with a vibracular cell at its distal extremity. 



CUPULARIA, Lamourousc, Exp. Metb., p. 4-1 (proposed as a sub-genus); Busk, B. Mus. Cat , 



P. i, p. 07. 

 LUNULITES (pars), Defrance ; Desfongchamps ; Goldfuss ; Blainville ; Lunsdale, Journ. 



Geol. Society, i, p. 503 ; Michelin ; Reuss. 

 SPIRALIS, Hagenow, Geinitz. Gruud., p. 623. 



1. C. DKNTICULATA, Conrad. PI. XIII, fig. 1. 



Polyzoario conico sen depresso, plerumque subelongato, oblongo, margine denticulata ; 

 cellularum area rhornbica; apertura margine denticulata; lamina granulosa; vibraculi 

 orificio auriculari, alte canaliculate. Superficie dorsali sulcata, glabra vel subrugosa. 



Polyzoarium conical or depressed, usually more or less irregularly oblong ; area 

 rhombic; aperture with a denticulate margin; lamina granular; vibracular opening 

 auricular, deeply channelled ; posterior surface sulcate, smooth, or rugose. 



L. ALVEOLATUS (?), S. Wuod, Annals N. H., xiii, p. 18. 



C. DENTICULATA, Conrad, Sillimau's Journal, Oct., 1841, vol. xli ; Lonsdale, Q. Jour. Geol. 



Soc., 1845, vol. i, p. 503 (witb fig.) 

 C. OWENII, Gray (?), Spicilegia Zool., pt. i, p. 8, t. iii, fig. 15 ; Busk, B. M. Cat., p. li, 



p. 99, pi. cxv ; S. W., Ann. Nat. Hist., xiii, p. 18. 

 C. JOHNSOXI, Busk (!), Q. J. M. Sc., vii, p. 67, Zooph., pi. xxiii. 



Habitat. C. Crag, Sutton, Ramsholt, S. W. ; J. 8. S. ; Miocene formation, 

 Williamsburg, Lonsd. (Recent) Coast of Africa, Madeira, Canary Isles, Johnson-, 

 Macandrew. 



The very striking resemblance in all the most essential points between the species 

 above cited as synonymous with C. denticulata, at any rate in the condition they present 

 when all the animal parts are removed, renders it highly probable that they are all iden- 

 tical. At the same time, some not inconsiderable diversities exist, almost sufficient to 

 lead to the supposition that they may be distinct. That is to say, that two separate 

 species are represented by C. Owenii, Gray, and C.Johnsoni, nob., for of the identity of the 

 latter with the Crag fossil, I entertain, upon the most careful investigation, scarcely the 

 shadow of a doubt. The typical specimens of Cup. Owenii, in the British Museum, ;uv 

 very flat and extremely delicate, the posterior surface being smooth and shining, or very 



