^06 Messrs. W. K. Parker and T. R. Jones on the 



FlabellincB : see N. Jahrb. 1849, p. 839, where Flahellina ovata> 

 M. sp., Fl. oblonga, M. sp., Fl. striata, M. sp., and Fl. cuneata, M. 

 sp., are figured in pi. lO.f. 23-26. In the 'Galerie des Mollusques, 

 ou Catalogue methodique, descriptif et raisonne de mollusques et 

 coquilles du Museum de Douai/ par V. L. V. Potiez et A. L. G. 

 Michaud (2 vols. 8vo, Paris, 1858), pi. 9. f. 1-3 illustrate their 

 Frondicularia scutiformis, which is a Flahellina; and f. 4-6 

 illustrate their Textularia scapelliformis, which is a Frondicularia. 

 These are Belgian fossils from Autreppe, near Mons. 



18. Helicite. Diet. xx. p. 456. A name given by Gesner to 

 Nummulites. 



19. Helicites perforatus, De M. sp. Diet, xxxii. p. 179; Bl. 

 Malac. p. 373. This is a small granulate Nummulina, theNautilus 

 lenticularis, var. e, of Fichtel and Moll, Test. Micr. pi. 7. tig. h. 

 See Ann. Nat. Hist. ser. 3. v. p. 108 & p. 111. (See also Num- 

 mulites, further on.) 



20. Helicites radiatus, De M. Diet, xxxii. p. 179 j Bl. Malac. 

 p. 373. This is a small Nummulina, the Nautilus lenticularis, 

 var. a, of Fichtel and Moll, Test. Micr. pi. 7. fig. g. See Ann. 

 Nat. Hist. ser. 3. v. p. 108 & p. 111. (See also Nummulites, 

 further on.) 



21-23. Larvaire. Diet. xxv. p. 287. (Larvaria.) Defrance 

 found, in the Calcaire grossier of the vicinity of Paris, and in the 

 Tertiary sands at Bracheux and at Abbecourt, near Beauvais, 

 some little cylindrical bodies, tubular, tapering at both ends, 

 and composed of rings that readily fall apart, and grouped them, 

 as three species of Larvaria, among the " Polypiers.''^ These 

 we have already recognized as allied to Dactylopora cylindracea 

 (Ann. Nat. Hist. ser. 3. v. p. 473, and Carpenter^s 'Introduction,* 

 p. 132, pi. 10). 



Larvaria reticulata, Defr. 1822. Diet. xxv. p. 287 (Bl. Actin. 

 pi. 71. f. 3), has the axial hollow large. 



L. limbata, Defr., ibid., has one end larger than the other, and 

 a smaller central hollow; and its circular ranges of holes are 

 less apparent. 



L. Encrinula, Defr., ibid., is from the Tertiary beds of Haute- 

 ville (Manche), and has the central hollow very small ; and the 

 cylinder has its rings constricted at intervals. 



Both L. limbata and L. Encrinula may well be varieties of 

 L. reticulata. (See also Dactylopora and Polytrypa.) 



24. Lenticulina araneosa, De M. sp. Diet, xxxii. p. 182; Bl. 

 Malac. p. 390. A variety of Cristellaria Calcar. Ann. Nat. Hist, 

 ser. 3. vi. p. 344. 



25. Lenticuhna Calcar, Linn. sp. Diet, xxxii. p. 182; Bl. 

 Malac. p. 390. This is the typical Cristellaria Calcar, See also 

 Ann. Nat. Hist. ser. 2. xix. p. 290, & ser. 3. v. p. 111. 



