the Nomenclature of the Foraminifera, 225 



II, Laminated Marl\7] , or marl-lihe Diatom-earth (" Platten- 

 Mergel, Placca di Furni, Plocafurno ") from Zante^ Greece. 

 Composed largely of Diatoms and Polycjstines. (Monatsber. 

 Berl. Akad. Wiss. 1837, p. 61 : 1839. Abliandlung. Berl. 

 Akad. 1838, Tabelle.) 



Plate XX. I. figs. 1-53. Diatomacese, Polycystina, Spongo- 

 litlii, &c. 



Figs. 54, Botalia glohulosa^ /3? (1838), and 55, R. senaria^ 

 are probably young Flanorhulince {PI. gJobulosal). Fig, 56, 

 PlanuUna annulosaj looks like a small PL ariminensis^ but it 

 may be a Nonionina (?). 



Species and noticeable Varieties from Zante figured hy 

 Ehrenherg. 



1. Planorbulina farcta {F.&M.)^ vsly. globulosa (Ehr.). 



2. Planulina vel Nonionina? 



III. Non-])lastic marl from JEqina.^ Greece. (Monatsb. 

 Berl. Akad. 1838, p. 176. Abliandl. Akad. 1838*, Tabelle, 

 Griechenland no. 4.) 



The specimen yielding the Microzoa here figured was a 

 slightly plastic calcareous clay (marl) of Tertiary age, from 

 the bed lying immediately on the plastic clay in the same hill 

 in jEgina, In it Foraminifera predominate, and Diatoms 

 and spicules are relatively few ; and it differs so much in its 

 organic contents that Ehrenberg thought it must be Tertiary, 

 whilst he assigned the lower bed to the Cretaceous series, like 

 those siliceo-calcareous deposits from Sicily and Oran * de- 

 scribed by him (erroneously) as " Chalkmarls," 



PI. XX, II. fig. 1, Nodosaria monile^ — N. filiformis^ D'Orb. 

 Figs. 2, Strophoconus auricula^ 3, St. omnn^ and 4, St. 

 gibbuSj are small specimens of Virgulina Schreibersii ; and 

 5, St. gemma, is another, but varietal, approaching BuUmina 

 elegantissima in its mode of growth. Fig. 6, Sjm-oloculina 

 tenera] a small Adelosina, or first stage of nearly any Miliola. 

 Fig. 7, Grammostomum elegans^ is a delicate, rather broad, and 

 partially punctate Bolivina j)unctata. Fig, 8, Proroporus 

 argus, is a fine, strong, thick-shelled, short-chambered, and 

 coarsely perforate variety oiB. punctata. Fig. 9, Gr. sulcatuniy 

 is B. cosfata, or rather a delicate subvariety, neatly marked 

 with slight furrows. Fig, 10, Gr. aciculatum (" Textilaria aci~ 



* The Microzoa of the lower plastic clay bed are compared with those 

 of Caltanisetta and Oran, in a synoptical table, under revised names, in 

 the 'Monatsbericht,' 1844, the Foraminifera at p. 44, 



Ann. & Mag. N. Hist. Ser, 4, TW. ix. 16 



