studies oil rnaririi' OslrMPods 



40,S 



Fig. LXX. — Ph. (Philnmecks) Lilljebnrgi (O. O. Sars), ?. —1. Right valve spcn from the side; 39 X. 2. Anlerior 

 pari ol Ihe left valve seen from inside: 100 X. 3. Posterior part of the left valve seen from inside; 100 X. 4. A part 

 of the selvage of the ventral margin of the rostrum; :)25 X. S. A part of the selvage just behind the rostral incisur; 

 500 X. fi. Mcdi il litistlefrom the rostrum: 500 X. (All figures are drawn from a sperimen determined by O. O. Satis.) 



