NORWEGIAN OPISTHOBRANCHIATE MOLLUSCA 47 



Fig. 9. Lophocloris danielsseni Frielk & Hansen. X 6. 



Fig. 10. Pharyngeal bulb of Lophodoris danielsseni. c cerebral ganglia; e 



eye; i ingluvies buccalis; m raoulh; o oesophagus; p radular sac; r 



rhinophorial nerve; s statocyst; t nerve to the cephalic integument. 

 Fig. IL Cuthona distans n. sp. X 10. 



Fig. 12. Tooth from the radula of Cuthona distans n. sp. X ^0. 

 Fig. 13. Outline, seen from below, of Coryphella salmonacea Couth, (a) 



and C. borealis Odhner (&). 

 Fig. 14. Radulae of Dotonidae: a Doto coronata, Gullmarn, Bohuslän; 6 



and c D. fragilis, Gullmarn; d D. crassicornis, Kosterfjorden, 



Bohuslän. X 60. 

 Fig. 15. Genital organs oî Doto coronata. atnp. ampulla; m mucous gland; p 



penis; pr. prostata; r. s. receptaculum seminis; v. d. vas deferens; 



V. s. vesicula seminalis; $ female genital orifice; $ gl hermaphrodite 



gland. 



