KONGL. SV. VET. AKADEM 1ENS IIANMLINGAR. BAND. 19. NIO 4. C ( J 



Syn. Bolivina tegulata Uss., 1850, Kreidemergcl Lemberg; Heid. Nat. Abli. 4. i, p. 45, t. 4, 



fig. 12. 



d) striata: 



Bolivina nobilis HKEN., 1875, For. Clav. Szab. Sch. p. 65, t. 15, fig. 4. 



semistriata HKEN., ibid. p. 65, t. 7, fig. 13. 



Bnliiuina Kquamosa var. subsquamosa EGGEK 



Tab. IV, figg. 109 113. 



This form, which is not to be identified with Virg. subsquamosa EGGER without 

 some hesitation, seems to occupy a position intermediate between D'()RBIGNY'S genus 

 Bulimina and his Virgulina; but it is more nearly allied to the latter than appears at 

 first sight. 



The generally slender and elongated Virg. squamosa becomes sometimes short and 

 broad (see fig. 103) and then is hardly distinguishable from the variety in question. 



Its shell-substance like the preceding has in transmitted light the same dusky 

 hue, being, as it were, incorporated with fine dust, which almost hides the pores and 

 presents a strong contrast to the clear, transparent shells of most of its nearest con- 

 geners. The pores are more wide apart than in 1ml. pupoides. 



The tendency of the early chambers to coil up is of no specific importance and 

 is often wanting. Such broad forms resemble somewhat Cassidulina oblonga Rss. WIL- 

 LIAMSON has described a Bui. pupoides var. convoluta, which may possibly belong to 

 this variety (Brit, recent forarnf. p. 63, figg. 132133). 



It is always of small size and not uncommon on the chalk-bottom. 



Fig. 109: a. Textulariafornied ; b. the same more enlarged. 



Figg. 110 113: two somewhat coiled specimens. 



Syn. Virgulina subsquamosa EGGEII, 1857, Miocan. v. Ortenburg; Leonh. u. Bronii. Jhrb. 1857, p. 295, 



t. 12, figg. 1921. 

 tenuis SEG., 1862, Rhizopod. foss. Catania p. 28, t. 2, fig. 2 (Accad. Gioenia Atti 



(2) 18). 

 Strophoconus? teretiuscula EGGER, 1. cit. p. 292, t. 12, figg. 30 32. 



Hemprichii EHRENB. (partim) t. 28, figg. 2830; t. 29, fig. 38; t. 32, figg. 1820?. 



Grammostomum EHRENB., ibid. t. 24, figg. 28 23. 



Bulimina (Bolivina) punctata D ORB. 



Tab. IV, figg 114126. 



This is the most Textularialike of the Bulimina?. Its principal difference from 

 Bui. squamosa should consist in the smaller degree of obliquity in its septa; of course 

 a very vague mark of distinction among members of such a class as Rhizopodes. 



Bolivina textularioides Rss., Bol. elongata KARR., Bol. antiqua D'OnB., Virgul. Eeussii 

 GEIN. are all intermediate between Bui. punctata and squamosa. 



