the Nomenclature of the Foraminifera. 221 



others are better figured and determined in the ' Mikrogeo- 

 logie; 1854. 



The species of Foraminifera known to Ehrenberg in 1839 

 are enumerated and characterized at pp. 130-135, Abhandl. 

 fiir 1838. 



II. Abhandl. Berl. Akad. fur 1839 (1841), pp. 94 et seq., 

 with 4 plates. (Ueber noch zahlreich jetzt-lebende Thierarten 

 der Kreidebildung.) 



PI. 1. fig. 1, a-g. Geoponus stella-borealis *. = Polystomella 



striatopunctata (F. & M.) , 

 PI. 2. fig. 1, a-g. Nonionina germanica*. =Nomonina umhi- 



licatula (Montagu). 



fig. 2, a, 5, c. Rotalia perforata. =Planorhidina. 



fig, 3, a, h. globosa. = PlanorhuUna ? 



fig. 4, a, h. turgida. = CristeUaria rotulata (La- 

 marck). 



fig. 5, a, ^. Textilaria aciculata. = Bolivina dilatata i^}) ^ 

 Rss. 



III. Abhandl. Berl. Akad. Wiss. fur 1841 (1843). (Ver- 

 breitung und Einfluss .des mikroskopischen Lebens in Siid- 

 und Nord-Amerika.) 



P. 438, pi. 1. fig. 31. Kotalia peruviana. = Palvinulina^ 

 P. 441 (from Cuba), pi. 2, fig. 39^. Triloculina antillarum. = 

 Miliola ( Quinquelocidina ?). 



fig. 40. Triloculina turgida. = Uniloculina'? 



fig. 41. Kotalia perforata. =PIa7wrbulina? ve\?Discor- 



hina glohularis^ (D'Orb.). 

 fig. 42. Rotalia cochlea. ~\ = PulvinuUna cultrata'^ 

 fig. 43. Rotalia egena. J (D'Orb.). 

 fig. 44. Textilaria semipunctata. =Bolivina? 

 P. 443 (from Vera Cruz), pi. 3. fig. 41. ?Spirillina vivipara. 

 This is stated to be siliceous • but it is extremely like some 

 of the simply tubular, non-segmented Pulvtmilince, and has 

 been taken as a subtype. In the ' Mikrogeologie,' at p. 3 

 and elsewhere, in the lists of Microzoa, a calcareous Spiril- 

 lina vulgaris^ Ehr., is mentioned; but whether this is a 

 relation of Pulvinulina, or a Cornuspira, or a Trocham- 

 m.ina'\^ we have no means of judging. 



* These two species are described in the Monatsber. for 1840, p. 23. 



t The group of unchambered shells for which Sp. vivipara was taken 

 as a type by one of us in 1850 (in King-'s " Monograph of Permian Fos- 

 sils," Palseontogr. Soc. pp. 18-20) has been divided into the three divi- 

 sions above indicated. The Permian discoidal fossil is really a Trocham- 

 mina ; but, from its supposed relationship to the Bordeaux fossil (a real 



