302 PROCEEDINGS OP THE GEOLOGICAL SOCIETY. [Jan. 4, 



Some other varieties and species are but little known, and call 

 for a few remarks as to their structure and alliances. Others are 

 determined here for the first time, and require a few words of 

 notice. 



1-43. The varieties here enumerated comprise nearly all the best 

 marked and most distinct forms known of the genus Nodosarina, 

 including Nodosaria and Cristellaria and all their varieties. The 

 Flabelline subgroup, however, is not well represented, though some 

 of the Cristellaria^ here put on to some extent the essential features 

 of Flabellina. "We have elsewhere stated* our views of the close 

 relationship of Dentalina, Lingulina, Frondicularia, Dimorphina, 

 Rimulina, Vaginidina, Planularia, and Marginulina to Nodosaria 

 on one hand and Cristellaria on the other. 



3. Nodosaria ovicida, D'Orb. Ann. Sc. Nat. vii. p. 252, No. 6 ; Sol- 



dani, Testaceograph. ii. pi. 10. figs. H-M ; N. longiscata, D'Orb. 

 For. Foss. Vien. p. 32, pi. 1. figs. 10-12. 



4. N. Pyrida, D'Orb. Ann. Sc. Nat. vii. p. 253, No. 13 ; Soldani, 



Testaceog. ii. pi. 10. fig. b-c ; N. stvpitata, Reuss, Denkschr. Ak. 

 Wien, i. pi. 46. fig. 4. 



5. N. longicauda, D'Orb. Ann. Sc. Nat. p. 254, No. 28; Soldani, 



Testaceog. i. pt. 2, pi. 95. fig. b-m ; N. striaticollis, D'Orb. Hist. 

 Nat. Canar. pi. 1. fig. 2-4. 



6. N. hirsuta, D'Orb. Ann. Sc. Nat. vii. p. 252, No. 7 ; Soldani, Tes- 



taceog. ii. pi. 2. fig. P ; N. hispida, D'Orb. For. Foss. Vien. pi. 1. 

 f. 24, 25. 



21. Vaginulina striata, D'Orb. Ann. Sc. Nat. vii. p. 257, No. 3; 

 Soldani, Saggio Orittog. pi. 6. f. N. 



24. V. marginata, D'Orb. Ann. Sc. Nat. vii. p. 285, No. 7 ; Soldani, 

 Testaceog. i. pt. 2, pi. 103. f. M. 



28. Marginidina False. New variety. [Type, Nodosarina Raphanus, 

 Linn.] An elegant dimorphous, striated, little Nodosarina, with 

 the first six or seven cells arranged in the form of a partially un- 

 coiled trihedral (or Cristellaria Saracenaria of Defrance), and with 

 the last two, three, or four chambers rectilinear and not distin- 

 guishable from those of Nodosaria longicauda, with which this 

 variety is always associated in nature. N. longicauda may be 

 regarded as the normal form to which this variety belongs, and 

 is the more prevalent of the two. Soldani has given two or 

 three figures (Testaceog. i. pt. 2, pi. 95. fig. L ; pi. 96. fig. P ; 

 and pi. 102. fig. 6), which, though wanting in definiteness, may 

 have reference to this variety. 



30. Marginulina hirsuta, D'Orb. For. Foss. Vien. p. 69, pi. 3. f. 17,18. 

 This is not the Marginulina hirsuta of the Ann. Sc. Nat. vii. 

 p. 259, No. 5, which is Bigenerina Nodosaria, as shown by 

 Solclani's figures referred to by D'Orbigny. 



* In the ' Annals of Nat. Hist.' 3 ser. vol. iii. p. 477. 



