Plate IV. 



Figs. 1 a-c. Hoplopm-ia groenlandica n.sp. 1 с Portion of the carapace; X2. 



- 2. — — — Chela of an other specimen. 



- 3. Natica sp. Cast. 



- 4-5. Aporrhais speciosa v. Schloth. sp. 



- 6. Coeloma bicarinatum n. sp. 



The figures are of the natural size, except where otherwise 

 stated. 



All the specimens figured are preserved in the Mineralogicai 

 Museum of the University, Copenhagen. 



