82 



HARDWICKE'S SCIENCE-GOSSIP. 



[Apkil 1, IS 70. 



British Eossils. It is rare at Sens, St. Germain, 

 and Maestricht. 



9. The next genus is Margimdina, which has five 

 representatives. Margimdina trilobata (fig. S3) is 

 common in the environs of Sens, and very rare at 

 Meudon, St. Germain, and in England. 



Fig. 83. 

 Margi?iulina trilobata. 



Fig. 84. 

 Marginulina carripi'essa. 



10. Marginulina compressa (fig. 84), very rare 

 at Meudon, found also in the greensand of Mans, 

 and recorded by Morris, from Charing. 



11. Margimdina elongata (fig. 85) is common 

 at Sens, rare at Meudon and St. Germain, but is 

 found in the Kentish chalk, and in Bohemia, and 

 other parts of Europe. 







Fig. 85. Marginulina elongata. 



12. Marginulina raricosta (fig. 86) is very rare at 

 Meudon, the only locality given by D'Orbigny, but 

 Morris adds Charing in Great Britain. 



13. The fifth and last species is Marginulina gra- 

 data (fig. 87), found only in the neighbourhood 

 of Sens, and apparently not recorded in Britain. 



Fig. 86. 



Marginulina > aricosta. 



Fig. ST. 

 Marginulina graduta. 



The genus Frondicularia completes D'Orbigny's 

 order Stichostegia, and our first instalment. 



14. Frondicularia radiata (fig. 8S) is said to 

 be rarely met with at Meudon and St. Germain. Not 

 apparently recorded in Britain. 



15. Frondicularia elegans (fig. 89) is also very 

 rare at Meudon and Sens, and wholly absent from 

 Britain. 



Fig. 88. 

 Frondicularia radiata. 



Fig. 89. 

 Frondicularia elegans. 



16. Frondicularia Verneuiliana (fig. 90) is a 

 beautiful species, common at Sens, but rare at St. 

 Germain and Meudon. It is recorded in Britain 

 from Charing, and in the chalk. 



Fig. 90. 

 Frondicularia Yerneuilianu. 



Fig. 91. 

 Frondicularia Archiaciana. 



17. Frondicularia Archiaciana (fig. 91), though 

 D'Orbigny says it is always rare at Meudon and 

 Sens, is recorded in Britain from Charing, and in the 

 chalk, and by Williamson in his monograph as found 

 living at Sandwich. 



18. Frondicularia ornata (fig. 92) is recorded 

 solely from Meudon. 



Fig. 92. Frondicularia ornata. 



19. Frondicularia tricarivata (fig. 93), apparently 

 rare in the neighbourhood of Sens, but in Britain at 

 Charing, and in Kentish chalk. 



20. The last species is Frondicularia angulosa 

 (fig. 94), said to be very rare at Meudon, and not 

 stated in the British list. 



If we take a survey of this series of twenty species, 

 according to D'Orbigny, we find that not less than 



