Lamouroux's esti mation to possess features entitling it to 

 generic distinction, for which he proposed the name of Cupu- 

 laria; and he says that in effect the disposition of the cells is 

 somewhat different, and the polypidom is not radiate. 



Lunulites are described by Munster (Goldfuss, Petrefac, 

 Germ., 1826, vol. i., p. 105; plate 37, fig. 7, L. rhomboidalis), 

 by Michelin (Iconograp. Zool., 1841, p. 279, plate 63, fig. 12, 

 L. Vaudenbechii) , and by A. E. Reuss (Naturwissen schaftliche, 

 Abhandlungen, Vienna, vol. ii., p. 58, plate 7, fig. 26 and 27). 

 The genus is also mentioned by Hagenow (Bryoz., Maestr. 

 KreicL, plate 12, fig. 15 and 16), D'Archiac (Mem. Soc, Geol. 

 de France, vol. ii., p. 196, plate 5, and vol. iii., p. 412), Leymerie 

 (op. cit., vol. i., p. 358, plate 13), P. H. Nyst (Descrip. des 

 Coquilles et Polypiers Possiles de Belgique, p. 624, plate 48, 

 fig. 6-8), Defrance (Diction, des Sciences Naturelles, vol.27, p. 

 360, Atlas plate 50, fig. 5), Deslongchamps (Encycl. Zooph., p. 

 501), Mor ren (Decrip. Coral Foss. in Belg. report, 1828, p. 

 44), Lea (Contrib. to Geol., plate 6, fig. 202), Galeotti (1837, 

 Mem. Geog. du Brabant, p. 163), Scacchi (1834, Notizie 

 inta alle Couch ed a Zoofite Poss., p. 16, plate 2, fig. 7, 8), 

 Lonsdale (Jour. Geol. Soc, vol. i., p. 503), S. Wood (Ann. Nat. 

 Hist., vol. xiii., p. 18), Conrad (Silliman's Jour., Oct., 1841, 

 vol. xli.), Gray (Spicilegiuin Zool., part 1, plate 8, b. 3, fig. 15), 

 Busk (Quart. Jour. Micros. Soc, vol. vii., p. 6);* also British 

 Museum Catalogue of Polyzoa : Palaeontographical Soc, 1857, 

 Poss. Polyz. of the Crag, p. 78. 



It is in the latter publication that Mr. Busk gives a 

 lengthened notice of the whole family of Selenariadse, and 

 reviews the relations of the existing species to those known as 

 fossil. He figures and describes two species of Cupularia, which 

 are found as fossils in the Crag (Pliocene) of Suffolk, England ; 

 but one only found alive at Madiera,f the Canary Isles, and 

 the coast of Africa. Also, two species of Lunulites which have 

 no living representatives. 



In spite of the divisions proposed by Mr. Busk, which are 

 clear and convenient if not quite natural, there is some con- 

 fusion still as to the limits of the family and the names of some 

 of the genera. Cupularia is used by D'Orbigny as a genus of 

 the family of Plustrinoidea, tribe Flustrellaria, which 

 includes Escharidje, which are entirely without pores, 

 avicularian or vibracular pores, I suppose. This tribe includes 

 Trocliopora, Dlscoflustrellaria, Cupularia, and Laterojlustrellaria, 

 all of which have the zoooecia growing on a convex discoidal 

 free zoarium. In Trochopora there are radiating lines like costse 



* I have not included Cuvier, Brongniart, or Brown, as^their species are 

 doubtful. 

 t See Jour. Micros. Soe., Oct., 1878. 



