296 Messrs. W. K. Parker and T. R. Jones on the 



(see Annals Nat. Hist. 2 ser. vol. xix. p. 273), and is exceedingly 

 abundant both in the fossil and the recent state. 



14. Nummulites globularia. Ann. Mus. v. p. 241, No. 2 ; 

 Hist. An. s. Vert. vii. p. 629, No. 2. 



" Fossil ; Retheuil." [Defrance adds Morlaie near Chantilly, 

 and Transylvania, Diet. Sc. Nat. xxxv. p. 224.] 



Defrance was correct in regarding this as merely a variety of 

 N. IcKvigata ; it is the Cherry-stone variety. 



15. Nummulites scabra. Ann. Mus. v. p. 241, No. 3 ; Hist. 

 An. s. Vert. vii. p. 629, No. 3. "Fossil; Soissons." [Defrance 

 adds Parnes and Saint-Felix.] 



This is a nearly constant companion of Nummulina l&vigata ; 

 and as every intermediate stage of granulation (from the mere 

 appearance of hyaline spots on the septa and at the points 

 where the inosculating canals of the alar flaps intersect one 

 another, to upraised semicrystalline granules) is readily found 

 among fifty or more specimens from the Nummulitic sandy 

 beds at Bracklesham, Brussels, and elsewhere, we cannot but 

 regard this as a mere variety of 2V. laevigata. Similar conditions 

 obtain with Nummulina planulata, especially among its recent 

 Operculine varieties. Nor are the members of the " sinuate" 

 group without their similarly granulate or scabrous conditions 

 of growth. 



N. scabra has the same plan of growth that N. Icevigata has, 

 and closely follows its type in its variations of external form. 

 This has also been noticed by d'Archiac and Haime, whom we 

 cannot follow in giving a specific standing to N. scabra. Their 

 remarks on, and history of this form (Foss. Num. de PInde, 

 p. 107, pi. 4. figs. 9-12) may, however, be studied with ad- 

 vantage. 



16. Nummulites complanata. Ann. Mus. v. p. 242, No. 4 ; 

 Hist. An. s. Vert. vii. p. 630, No. 4. "Fossil; Soissons ?" 



The locality given by Lamarck with doubt is incorrect. The 

 Nummulite here referred to is recognized as one belonging to 

 Eastern Europe. The detailed account of this Nummulite and 

 its synonymy given by d'Archiac and Haime (op. cit. p. 87, pi. 1. 

 figs. 1-3) should be consulted. 



With us, Nummulina complanata is the specific centre of a 

 suite of forms (peculiar to the East) having narrow, shallow, 

 sinuate alar lobes, and belonging to d'Archiac and Haime's 

 group " Iseves aut sublseves," but which we term te sinuate." 



17. Lituola. Ann. Mus. v. p. 242. Lituolites nautiloidea, 

 Ann. Mus. v. p. 243, No. 1 ; viii. pi. 62. fig. 12 ; Lituola nauti- 

 loides, Tabl. Enc. Meth. pi. 465. fig. 6; Lituolites nautiloidea, 

 Hist. An. s. Vert. vii. p. 604, No. 1. " Fossil ; Chalk, Meudon." 



This is a type of an important group of forms among the 



