Cancer pagurus. One very small one. 

 Carcinns nitenas. Very small, common 

 Porcellana platycheles. One. 

 Dexamine spinosa, A few. 



THE FAUNA OF THE EXE ESTUARY. 311 



CRUSTACEA. 



Gammanis locnsta. Several. 

 Amphitlioe rubricata. One. 

 Aora gracilis. Two. 



MOLLUSCA. 



Mytilus edulis. Young, very common. I Rissoa parva. One. 



Tapes virgineu. One small one. I Nassa incrassata. One. 



POLYZOA. 



Scrupocellaria scrnposa. Several colonies on sponge. 



Below the Checkstone Ledge the bottom of the channel is covered 

 with large masses of mussels {Mytihis edulis), which afford a regular 

 fishery to a number of small boats (cf. p. 326). The mussels are often 

 united together into large masses eight inches or a foot in diameter. 

 Only a few other species are associated with the mussels. 



Station 14 c. MUSSEL BANK. 

 List of Species. Dredge. 



July 9th, 1901. 



ECHINODERMA. 



Am2:)liiura elegans. One. 



TURBELLARIA. 

 Leptoplana tremellaris. One. 



POLYCH.ETA. 



Stlienelais boa. One. 



CRUSTACEA. 



Carcinus mcenas. Several. I Melita palmata. One. 



Pagurus Bernhardus. One. 1 



MOLLUSCA. 



Mytilus edulis. Abundant. | Buccinum undatum. One small. 



Beyond the mussel bed the dredge brought up only clean stones. 



Station 15. MERE BAY. 



List of Species. Mosquito Net Trawl. 



August 7th, 1901. 



CRUSTACEA. 



Stenorliyncluis plialangium. One. 

 Crangon vulgaris. Common. 

 Palaemou serratus. Several small. 



NEW SERIES. — VOL. VI. NO. 3. 



Macromysis flexuosa. Many. 

 Gammarus locusta. Common. 



