DORIS PLANATA. 



This Doris cannot be confounded with any other known British species. Perhaps its 

 nearest ally is the Doris testudinaria of the Mediterranean. The individual from which 

 our drawings were taken was dredged on a scallop bed in shallow water in Lamlash Bay, and 

 occupied the interior of an old shell of Pecten opercularis. The spicula were not examined, 

 as we were unwilling to destroy our single specimen for that purpose. 



Figs. 1, 2, 3. Doris planata, different views. 



4. A branchial plume, more highly magnified. 



5. A portion of the skin, much magnified. 

 6, 7. Side and front views of a dorsal tentacle. 



