the Nomenclature of the Foraminifera. 219 



PI. 6. fig. 21. IJvigerina pygmsea, D'Orh. Aciileate variety, 

 fig. 22. Yerneuilina pygma?a {E</ger). 

 fig. 23. Virgulina Schreibcrsii, CzizeJc. 



fig. 24. V. Schreibcrsii (irregular and dwarf). From 



fig. 25. Discorbina Borthelotiaua (D'Orb.). )>1020 



fig. 26. Textilaria pygmaea, i)'0>'6., i;<?Z Bolivina punc- fath. 



tata, D' Orb. 

 fig. 27. Bolivina punctata, D'Orh. With an aculeate 



base. 



fig. 28. Spiroloculina planulata {Lam.). 1 From 



fig. 29. Quinqueloculina scminulum {Linn.). Young. I 440 



fig. 30. Triloculina oblonga {Montagu). J fath. 



figs. 31, 33. Calcarina Spengleri {Gmel.), var. 1 „, ,, 



fig. 32. Described as a lenticular body, Y\keQ.Ni(m- \ ', 

 ° ,. -' f water. 



mulina. J 



Whatever the peduncles in figs. 31 & 33 may be, the ter- 

 minal processes, referred to by Mr. Macdonald as peduncles, 

 in figs. 2, 4, 6, 21, 23, & 30, are the usual more or less pro- 

 duced, tubular, stoloniferous apertures. 



Several good sectional views of typical forms are given by 

 Dr. J. G. Egger, ' Neues Jahrbuch fiir Mineralog. Geog.' 

 &c, 1857, among his figures of the Miocene Foraminifera of 

 Ortenberg ; and these also may be advantageously used in 

 comparison with Ehrenbcrg's figures. 



§ 2. In the first place we propose to offer such conclusions 

 as we think we can safely arrive at with respect to the figures 

 of Foraminifera given in the ' Abhandlungen' for 1838, 1839, 

 1841, and 1847. 



I. Abhandl. Berl. Akad. Wiss. fiir 1838 (1839), pp. 54r- 

 149, with table and 4 plates. (Ueber die Bildung der Kreide- 

 felsen und des Kreidemergels durch unsichtbare Organismen.) 



PI. 1. fig. 1, A, a, *** &c., B, a, b, c, d, e, &c. Rotalia Beccarii. 

 From the Adriatic. =Ii. Beccarii, var. amnioniformis 

 (Lin. et Lam.). 



fig. 2. A, a, a, h, c, B. Marginulina raphanus [Linn. sp.]. 

 From Rimini, Adi'iatic. 

 PI. 2. fig. 1, a, 5, c,(7, x,y, &c. Peneroplis planatus. From the 

 Red Sea. =P. pertusus (Forskal). 



fig. 2, a, 5, a, if, &c. Coscinospira* Hemprichii. From 

 the Red Sea and Libyan portion of the Slediterranean. 

 The elongate subtype of Peneroplis. 

 PI. 3. fig. 1, «, h, c, f/, &c. Orbiculina numismalis [Lamarck], 



• This subgeneric name {^=Sjnrolino, Lamarck) is misapplied to the 

 elongate Lituolce in some of Dr. Ehrenberg's memoirs. 



