. The Annals and magazine of natural history; zoology, botany, and geology. Natural history; Zoology; Botany; Geology. 94 Messrs. W. K. Parker and T. R. Jones on the (as is also the habit of Valvulina) acquire some degree of rude ornament from the accretion of smaller Forarninifers, sponge- spicules, and prismatic fragments of molluscan shells. The clear and porous shell, in small and medium-sized specimens, occasionally has the pores projected as short tubes; this is well shown in a little Bigenerine Textularia in the Eocene deposits of Grignon, which is closely related to T. pectinata, Reuss
. The Annals and magazine of natural history; zoology, botany, and geology. Natural history; Zoology; Botany; Geology. 94 Messrs. W. K. Parker and T. R. Jones on the (as is also the habit of Valvulina) acquire some degree of rude ornament from the accretion of smaller Forarninifers, sponge- spicules, and prismatic fragments of molluscan shells. The clear and porous shell, in small and medium-sized specimens, occasionally has the pores projected as short tubes; this is well shown in a little Bigenerine Textularia in the Eocene deposits of Grignon, which is closely related to T. pectinata, Reuss (Denkschr. k. Akad. Wiss. Wien, 1850, i. pi. 49. f. 2, 3), from the Vienna Basin, but is characterized by its relatively few pseudo- podian passages being elongated as short tubes all over the sur- face (fig. 2). Planorbulinafarcta has very small deep-sea varieties with similar structure—for instance, Rotalia reticulata, Czjzek, Haid. Nat. Abhandl. ii. 1848, pi. 13. ( = Siphonia fimbriata, Reuss, Denks. k. Akad. Wiss. Wien, i. 1850, pi. 47. f. 6) (fig. 3): these tubuliferous Planorhulinee are not uncommon in the Red Sea and elsewhere, and both recent and fossil in the Mediterranean area. Fig. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original London, Taylor and Francis, Ltd
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