1915- ^'O- 12. THE STROFHOMENIDAE OF THE KRISTIANIA REGION. III 



Page 

 Fig. 6. Rafinesquina expansa Sow. Ventral valve of a typical specimen. 



6, near Brevik, Skien— Langesund district. Coll. unknown 26 

 » 7. — Ventral valve with rather well developed corrugations 



at hinge. — 6 b, Gunneklev, Skien — Langesund district. 



Coll. J. Kiær 26 



^8. — Ventral valve with shell substance removed in posterior 



part. 6, near Rolighet, Ringerike. Coll. J. Kiær .... 26 

 » 9, — Small ventral valve. 6 c (?), Borgen, Ringerike. Coll. 



Th. Münster 26 



10. — — » — 7ba, Limaastangen, Ringerike. 



Coll. Th. Munster 26 



» II. — — » — Hor., loc, and as fig. 7 26 



■^12. — Internal mould of ventral valve, 6 a, Vaker, Ringerike. 



Coll. J. Kiær 26 



» 13. — External mould of dorsal valve. — 6 c, Gunneklevfjord. 



Skien — Langesund district. Coll. J. Kiær 26 



Î 14. Leptostrophia cf. filosa Sow. External mould of dorsal valve. — 



6 b, Gunneklev, Skien ~ Langesund district. Coll, J. Kiær 40 

 -^15. Leptostrophia filosa Sow. var. lata n. var. External mould of dorsal 



valve. — 9 d, Langø off Holmestrand. Coll. unknown . 41 

 » 16. — Ventral valve with shell substance removed in posterior 



part. — 9 d, Gaaserumpen off Holmestrand. Coll. J.Kiær 41 



Plate III. 



Fig. I. Raßnesquitm (^^ Sc /itm'dti Gagel. Ventral valve. — 4 d, basal part, 

 railroad section Roa — Grindvoll, Hadeland. Coll. O. 

 Holtedahl 32 



» 2. Rafinesquina (?) sp. [R. Schwidti Gagel ?). External mould of dorsal 



valve, 4 d, Frogno, Ringerike. Coll. J. Kiær 32 



>■ 3. Rafinesquina (?^ semipartita Roemer. Fragmentary specimen^ seen 

 from ventral side. — 5 a, Stavnæstangen, Ringerike. 

 Coll. J. Kiær 33 



5* 4. — External mould of dorsal valve. — 5 a, Vaker, Ringe- 

 rike. Coll. W. C. Brøgger 33 



- 5. Rafinesquina (?) cf elegans Kiesow. Ventral valve. — 4 b. Above 



Bratterud, Ringerike. Coll. O. Holtedahl 30 



•!> 6. Raßnesquina (?) sp. Fragment of ventral valve. — 8 a, Storø, 



Ringerike. Coll Th. Münster 31 



» 7. Raßnesquina [?) ringerikiensis n. sp Ventral valve. — 4 b, Bratte- 

 rud, Ringerike. Coli. J. Kiær 30 



> 8. Raßnesquina Mfmsteri n. sp. Ventral valve. — 4 b, Bratterud, 



Ringerike. Coli. J. Kiær 29 



■» 9. Raßnesquina pseudoalternata Schmidt. Ventral valve. — 5 a, upp. 



part. Vestre Svartø. Ringerike. Coll J. Kiær 21 



» 10. — External mould of dorsal valve. — 5 a, Stavnæstangen, 



Ringerike. Coll. J. Kiær 21 



» II. — As preceding 21 



Plate IV. 



Fig. I. Brachy prion yj) pseudeuglyphum Gagel (?). Ventral valve with shell 

 substance removed in posterior portion. — 7 a, Bjerkø 

 off Holmestrand. Coll. J Kiær 33 



> 2. Brachyprion explicatum n. sp. External mould of a relatively 



ver}^ strongly curved dorsal valve. — 8 c, Malmo, 

 Bundefjord. Coll. J. Kiær 38 



