PULVINULINA PUNCTULATA. 319 



Memoir, records specimens from several stations at depths exceeding 1000 

 fathoms — his lowest record being 2740 fathoms. Geographically the range of 

 the species is wide, but it is most commonly met with in tropical and subtropical 

 latitudes. 



Fossil specimens have been recorded from the Chalk of Swariscombe and 

 Taplow ; from the Eocene (London Clay) ; from the Miocene of Italy and Muddy 

 Creek, Victoria ; the Pliocene of Italy ; and the Pleistocene of Norway. In the 

 Coralline Crag we have found specimens in nearly every zone examined. 



2. Pulvtnulina punctula.ta (d' Orbigny), 1826. Plate II, figs. 22—24 ("P. 



repanda "). 



Part I, 1866, Appendices I and II, Tables, No. 83 (" P. repanda "). 



ItOTALiA punctulata, (V Orbigny, 1826. Ann. Sci. Nat., vol. vii, p. 273, No. 25, 



Modele, No. 12. 

 Eosalina calabra, Costa, 1856. Atti Accad. Pont., vol. vii, part 2, pi. xiv, fig. 6. 

 vesicularis, Parker and Jones, 1857. Ann. Mag. Nat. Hist., ser. 2, 



vol. xix, p. 292, pi. x, figs. 22—24. 

 Pulvinulina repanda, var. punctulata, P. and J., 1865. Phil. Trans., vol. civ, 



p. 394, pi. xiv, figs. 12, 13. 

 punctulata, P., J., and P., 1865. Ann. Mag. Nat. Hist., ser. 3, 



vol. xvi, p. 20, pi. iii, fig. 82. 

 repanda, J., P., and P., 1866. Monogr. Poram. Crag, pi. ii, figs. 



22—24. 

 punctulata, Brady, 1884. Eeport 'Challenger,' pp. 683, 685, 



pi. civ, figs. 17 a — c. 

 — — var., Sherborn and Chapman, 1886. Journ. E. Micr. 



Soc, ser. 2, vol. vi, p. 758, pi. xvi, figs. 22 a— c, 

 23 a— c. 

 ? Eosalina d'Orbignyi, Walther, 1888. Mitth. Zool. Stat. Neapel, vol. viii, p. 382, 



pi. xx, figs. 12 a — c. 

 Pulviisulina punctulata, Goes, 1894. K. Sv. Vet.-Ak. Handl., vol. xxv, No. 9, 



p. 96, pi. xvi, figs. 797—800. 

 — Chapman, 1S95. Proceed. Zool. Soc, 1895, p. 43. 



Characters. — A large but somewhat depressed, modified form of P. repanda, 

 with inflated segments and non-limbate sutures ; the inferior (umbilical) face is 

 sunken, and usually has many large perforations, and sometimes a few tubercles. 

 It is one of the largest of the rotaliform Foraminifera. 



The Crag specimens are distinguished from the typical Pulvinulina repanda 

 by their comparatively enormous size, complanate shape, and inflated segments, 



