worn, irregularly striated, and rare. I may have to call it by a different name. Recent in Atlantic, Arctic, British Seas; fossil in London clay, Sheppey. Sub-Order Perforata. Fam. Lagenida. Fig. 9. Nodosaria (Cristellaria) crepidula. Fichted and Moll. Very rare and choice here. Middle size, flat worn, septæ indistinct. Recent, Atlantic, and Arctic; rare. Fossil, boulder clays, Cheshire; London clay. Miocene, Yarra Yarra, trias, lias, and chalk. Fam. Globigerinida. Fig. 10. Texularia agglutinans. (Type) D'Orbigny. Here this species varies considerably from the forms described by Parker and Jones in Phil. Trans., 1865 (N. Atlantic and Arctic Foraminefera), and again the forms there figured differ much from the figures given by Mackie and Jones in “Geologist.” * * * It is found in Arctic and Davis Straits, 20 to 30 fathoms, rather common; also off Norway, 30 to 200 fathoms. Fossil in chalk, eocene, miocene, etc., and its representatives T. eximiæ and T. gibbosa in carboniferous limestone of England and Wales. Fig. 11. Texularia agglutinans, var. (Bigenerina) nodosaria. D'Orb. This form begins with a Texularian, and passes into a Nodosarian growth. The transition between the variety and the type can be easily traced in the material sent. Occurs, recent, all over the world. It has its representative in the carboniferous shales of England and Scotland. Fig. 12. Rotalia beccarii, var. craticulata. Parker and Jones. I think that this is the first time that this variety has been found fossil. It was described by Parker and Jones in Phil. Trans., Royal Soc., Lond., 1865. Here it is the commonest form, and rather large. It is one of the highest of the Rotalinæ, having a rough outline of a “canal system,” characteristic of the Nummulinidæ. Recent in the Fiji Islands. Fig. 13. Planorbulina arcta, var. (Truncatulina) lobatula. W. and J. A plano-convex form of the type, having the chambers embracing on the upper side; under side flat, showing primordial. Recent in all seas. Fossil in London clay, chalk; represented in the carboniferous limestone by T. carbonifera, Brady, and T. Boueana, D'Orb. Fam. Nummulinida. Fig. 14. Polystomella crispa, var. Nonionina umbilicatulu, Montague. Rare and small. A variety of P. crispa, in which the canal system processes are obsolete. Rare to common in various depths of North Atlantic and Arctic Oceans. Rare as British. Fossil—Boulder clays, London clay, miocene, chalk.