no OLAF HOLTEDAHL. M.-N. Kl. 



EXPLANATION OF PLATES. 

 Plate I. 



Page 

 Fig. I, Rafinesquina Panderi n. sp. Ventral valve. — 5 a, near Brevik, 



Skien — Langesund district. Coll. unknown 18 



» 2. Rafinesquina deltoidea Conr. External mould of dorsal valve. — 



4 b (Î, Ostø, Bærum. Coll. Th. Vogt 17 



» 3. — Ventral valve. — 4 b (î, Sandviken, Bærum. Coll. J. Kiær 17 



» 4. — Somewhat deformed ventral valve, — 4 b, Bratte- 



rud, Bønsnæs, Ringerike. Coll. J. Kiær 16 



;> 5. — External mould of dorsal valve. Hor., loc., and coll. as 



preceding 16 



» 6. — Ventral valve. — Hor., loc, and coll. like preceding. . 



» 7. Rafinesquina parva n, sp. Ventral valve. — Cyclocrinus shale, 



Furuberget, Mjøsen district. Coll. O. Holtedahl 22 



» 8. Rafitiesquina imbrex Pand. Internal mould of dorsal valve. — 

 4 b, low. part. Skjælbugten, Skien — Langesund district. 

 Coll. VV. C. Brøgger 15 



» 9. — (?) Fragmentary free specimen. — Probably Coelosphæ- 



ridium zone, Blilid, Toten, Mjøsen district. Coll. unknown 



» 10. — Free specimen, — 4 b Bratterud, Rinkerike. Coll. J. Kiær 15 



» II. — — » Coll. Hor, loc, and coll. as preceding. . 15 



» 12. Rafinesquina sp. (cf. A', alternata Em. var. loxorhytis Meek). Ven- 

 tral valve with shell substance removed in posterior 

 part, — 4 b, Coelosphæridiumhorizon, Fangberget, Mjø- 

 sen district 22 



» 13. Rafinesquina sp. (cf. R. injøsensis n. sp.). Ventral valve. — 4 c, 



South of Røikenvik, Hadeland. Coll. O, Holtedahl ... 20 



» 14, Rafinesquina hadelandica n. sp. Ventral valve. — 4 c, Gran, 



Hadeland, Coll. O, Holtedahl 24 



» 15. Rafinesquina sp. Ventral valve. — 4 c, Cyclocrinus shale, Furu- 

 berget, Mjøsen district. Coll. O. Holtedahl 23 



Plate II. 



Fig. I. Rafinesquina mjøsensis n. sp. External mould of dorsal valve. — 



5 b. Lodviken, Helgo, Mjøsen district. Coll. J. Kiær . . 19 



» 2. — Ventral valve. Hor., loc, and coll. as preceding .... 19 



» 3. — Dorsal valve. Hor. and loc. as preceding. Coll on ex- 

 cursion with students 19 



» 4. Rafinesquina carinata n. sp. Ventral valve. — 5 a, Stavnæstangen, 



Ringerike. Coll J. Kiær 25 



» 5. — Outer mould of dorsal valve, — ■ Hor,, loc, and coll. as 



preceding 25 



