. The Annals and magazine of natural history; zoology, botany, and geology. Natural history; Zoology; Botany; Geology. from the a Cambridge Greensand. 315 This species was first recorded from the Gault. It has since been found in the Middle Marl of New Jersey and in the lowest beds of the Chalk. Vitriivebbina tuberculata (Sollas). (Fig. 3.) Webbina tuberculata, Sollas, 1877, Geol. Mag1, dec. ii. vol. iv. p. 104, pi. vi. figs. 4-7 & 9. Trochammina irregularis (d'Orbigny), Perner, Ceska Ak. Cisai-e Frantiska Josefa, Prague (Palasont. Bohemias, no. 1), p. 53, pi. ix. figs. 1-6. Vitrhvebbina t
. The Annals and magazine of natural history; zoology, botany, and geology. Natural history; Zoology; Botany; Geology. from the a Cambridge Greensand. 315 This species was first recorded from the Gault. It has since been found in the Middle Marl of New Jersey and in the lowest beds of the Chalk. Vitriivebbina tuberculata (Sollas). (Fig. 3.) Webbina tuberculata, Sollas, 1877, Geol. Mag1, dec. ii. vol. iv. p. 104, pi. vi. figs. 4-7 & 9. Trochammina irregularis (d'Orbigny), Perner, Ceska Ak. Cisai-e Frantiska Josefa, Prague (Palasont. Bohemias, no. 1), p. 53, pi. ix. figs. 1-6. Vitrhvebbina tuberculata (Sollas), Chapman, 1896, Ann. & Mag. Nat. Hist. vol. xviii. p. 332, fig. 4; id. 1896, Journ. R. Micr. Soc. pp. 586, 587, pi. xiii. fig. 3. l By far the finest specimen of this form I have met with is here figured from the Cambridge Greensand of S waff ham (fig. 3). It is remarkable for having no less than ten Fig. Vitriwebbina tuberculata (Sollas). X 15. p= primordial segment. segments, and by its completeness throws considerable light on one of the methods of its growth. Vitriwebbina is more usually found as a series of chambers of gradually increasing size ; but the specimen before us gives an instance of a deviation from this general habit. The primordial segment in this specimen immediately gives rise to a double series of chambers of about equal dimensions extended laterally on either side of the commencement. This specimen is attached to a brown (?) fish-bone fragment. Originally described from the Cambridge Greensand, this species has since been found in the Gault of Merstham and Folkestone and in the Cenomanian and Chalk of Bohemia. Six specimens of Vitriwebbina tuberculata occur in this present series from the Cambridge Greensand of 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 origi
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