100 TRANSACTIONS LIVBBPOOL BIOLOGICAL SOCIETY. 



Pycnogonida :— Nymphon rubrum, Hodge, Turbot Hole, 



Puffin Island. 

 ^li)LTA'xcA:—MijtiIitsphascoIinus, Phil., Isle of Man, S. 

 Leda m'uiuta, Mull., var. brevirostris, Jeff., Port Erin. 

 Mactra solida, var. truncata, Mont., Puffin Island. 

 Mactra subtruncata, var. striata, Brown, Southport. 

 ,, var. incequalis, Jeff., Southport. 



Sasicava rugosa, var. arctica, L., Isle of Man South. 

 Panopea plicata, Mont., Southport. 

 Teredo megotara, Han., and var. mionota, Southport. 

 T. norvegica, Speng., var. divaricata, Desh., South- 

 port. 

 Siphonodentalium lofotensc, Sars, off Peel, I. of Man. 

 Trochus zizyphinus, var. humilior, Jeff., Port Erin. 

 Emarginula fissura, var. elata, Jeff., central area. 

 Bissoa stria tula, Mont., Waterloo. 

 B. zetlandica, Mont., Isle of Man, South. 

 B. striata, var. arctica., Lov., Puffin Island, Port 



Erin, and Port St. Mary. 

 ,, var. distorta, Mar., Puffin Island. 

 Hydrobia ventrosa, Mont., Colwyn Bay and South- 

 port. 

 Odostomia minima, Jeff., Isle of Man South; and 



Puffin Island. 

 0. clavula, Lov., Southport. 

 0. rissoides, var. glabrata, off Port Erin. 

 0. albella, Lov., Port St. Mary. 



,, var. subcyJindrica, Marsh., Port Erin. 

 0. inscidpta, Mont., Puffin Island, Southport and 



Isle of Man South. 

 0. turrita, var. nana, Jeff., Port Erin. 

 0. intcrstincta, var. suturalis, Phil., Southport, Puffin 



Island, and Isle of Man. 

 Cerithium perversum, L., Isle of Man South. 



