100 BERENICE A. 



and the peristoraes are shorter, and this species is more allied to 

 B. disciformis than to the Jurassic form. 



The formulae of the four forms are as follows : 



archiaci, Haime, Jurassic ... ... ... 1 2 dl 



disciformis (Hag.), Cretaceous ... ... 2 dQ 



conftuens (Rom.), ,, 1 0" d'l 



rotula (Reuss), Miocene 1 dQ 



LIST OF SPECIMENS. 



D. 919. On Ostrea, sp. Cornbrash. Thrapston. Vine Coll. Figd. PL IV. 



Fig. 2. 

 D. 920. On Nucleolites orbicularis (Phil.). Cornbrash. Thrapston. Vine 



Coll. Figd. PL IV. Fig. 3. 

 D. 899, D. 938. On Nucleolites orbicularis (Phil.). Cornbrash. Thrapstou. 



Vine Coll. 

 1 B. 4852. The Discopora confecta, Bean MS. Cornbrash. Scarboro'. Bean 



Coll. 

 D. 917. On Nucleolites orbicularis (Phil.). Cornbrash. Thrapston. Vine 



Coll. With gonocysts. 



D. 2071. On Terebratula, sp. Cornbrash. Midland Railway Pit, Bedford. 

 D. 2069. On Nucleolites clunicularis (Phil.). Cornbrash. ,, ,, 



D. 2070. On Holectypus depressus (Leske). ,, ,, 



D. 2067. With Stomatopora dichotoma (D'Orb.), on Nucleolites clunicularis 



(Phil.). Cornbrash. Midland Railway Pit, Bedford. 

 D. 2065, D. 2068. With Stomatopora dichotoma (D'Orb.), on Holectypus 



depressus (Leske). Cornbrash. Midland Railway Pit, Bedford. 

 D. 2066. On Natica, sp. ,, ,, ,, ,, 



D. 2168. On Apiocrinus elegans (Defr.), with . diluviana, Lamx., and 



B. archiaci, Haime. Bradford Clay. Bradford. Brodie Coll. 

 B. 987. On Apiocrinus elegans (Defr.). Bradford Clay. Bradford. Egerton 



Coll. 

 51342. On Apiocrinus elegans (Defr.). ,, ,, ,, J. Sharp 



Coll. Figd. PL IV. Fig. 1. 



D. 1822. On Terebellaria ramosissima, Lamx. Bradford Clay. Bradford. 

 D. 2272. On Terebratula maxillata, J. de C. Sow. Great Oolite. Blisworth. 



Presented by Beeby Thompson, Esq., F.G.S. 



D. 1797. On Terebratula curvifrons, Oppel. Inferior Oolite. Leckhampton. 

 D. 2131. With Stomatopora dichotomoides (D'Orb.). Inferior Oolite. Near 



Leckhampton. Brodie Coll. 

 B. 4855. OnAstarteobliqua,IjSLTnx.,vfit}ifi.allaudi. Lower Ragstone. Cold 



Comfort. Holl Coll. 



67691. On Zeilleria numismalis. Middle Lias. Ilminster. Etheridge Coll. 

 D. 2076. On Ostrea. Middle Lias. Banz, Bavaria. Brauns Coll. 

 55088. On limestone. Weisser Jura, 7 (Sequanian). Locheii. P. Mohr 



Coll. 



