PLATE 2 
Fics. 1 a-d. Lacunosella vaga sp. nov. Holotype. Kimmeridgian, mutabilis zone. | 
Sermérieu (Isére), France. B.M. BB. 44135. 
Fic. 2. L.vagasp.nov. Paratype. Details as fig. 1. B.M. BB. 44136. 
Fics. 3 a-d. L. vaga sp. nov. Paratype. Kimmeridgian, (“Malm delta’’). Lahm- 
Kottel, Germany. B.M. BB. 44137. 
Fics. 4 a-d. Lacunosella selliformis (Lewitski). Oxfordian. Tokarnia near Checiny, 
Poland. B.M. BB. 44142. : 
Fics. 5 a-d. Lacunosella cracoviensis (Quenstedt). Upper Oxfordian—Lower Kimmer- 
idgian, (“‘ Malm beta/gamma’”’). Wirgau, Germany. B.M. BB. 44138. 
Fics. 6a-d. L. cracoviensis (Quenstedt). Details as fig. 5. B.M. BB. 44139. 
Fics. 7 a-d. Lacunosella sparsicosta (Quenstedt). Kimmeridgian, (‘“‘ Malm gamma’’). 
Barrenberg, Germany. B.M. BB. 44140. 
Fics. 8a-d. L. sparsicosta (Quenstedt). Details as fig. 7. B.M. BB. 44141. 
