378 COOKE : on the macandrew collection. 



Philine scabra O. Miill. North Sea, &c. 



P. catena Mont. Scarboro'. 



P. quad rata S. Wood. North Sea. 



P. punctata Clark. Scarboro'. 



One specimen remaining of three (the other two 

 have disappeared) from Bean. 



P. pruinosa Clark. Sound of Skye. 



Three specimens, one full grown. 



P. aperta L. Liverpool, &c. 



Aplysia punctata Cuv. Hebrides. 



Pleurobranchus membranaceus Mont. Britain. 



P. plumula Mont. Torbay. 



Alexia bidentata Mont. Isle of Man. 



A. bidentata Mont. var. alba. Ilfracombe. 



The Auriculid(z I found in great confusion. Both 

 these cards were labelled Auricula alba. Two cards 

 containing identical specimens of Alexia myosotis, Drap. 

 i=^denticulata Mont.) were labelled Auficula bidentata 

 and Alexia denticulata respectively. The var; ringens of 

 this latter species was labelled Auricula persona. Two 

 cards were not labelled at all. 



A. nnyosotis Drap. Sandwich. 



As Auricula bidentata. 



A. myosotis Drap. Youghal. 



Somewhat more obese, but hardly a variety. 



A. nnyosotis Drap. var. ringens. Anglesea. 



As Auricula persona. One specimen has the outer 

 lip remarkably fluted with plaits, quite after the fashion 

 of tropical Melanipi. 



Otina Otis Turt. Ireland. 



Assiminea Grayana Leach. Greenwich. 



J.C, hi., October, 1882 



