NO. 2 



OLGA hartman: submarine canyons 



101 





d 



Fig. 18. a, Ophiura liitkeni, in oral and aboral views; b, Acila 

 castrensis, showing 3 closed and 1 opened shell; c. Cardita 

 ventricosa; d, Solemya panarnensis; e, Compsomyax suh- 

 diaphana; f, Molpadia intermedia. 



