310 THE FAUNA OF THE EXE ESTUAKY. 



Station 14 a. FIRST HALF OF CHANNEL FROM PIER TO 

 CHECKSTONE LEDGE. 



List of Species. Dredge. 



July 9th, 1901. 



HYDROZOA. 



Sertularia argentea. Common on stones. 



ECHINODERMA. 

 Echinus miliaris. One small. 



CRUSTACEA. 

 Pagurus Bernliardus. Two small. I Aora gracilis. Two. 



Ampliithoe rubricata. Two. I 



MOLLUSC A. 

 Mytilus edulis. One large ; many very small. 

 Tapes pullastra. Shells. 

 Buccinum undatum. Three small. 



Proceeding down the estuary, the portion between that last described 

 and the Checkstone Ledge was found to be occupied by large masses of 

 the sponge Halichondria 2Mnicca, with which tlie dredge was ahnost 

 filled. A limited fauna was associated with this sponge, as detailed 

 below. 



Station Ub. SECOND HALF OF CHANNEL FROM PIER TO 



CHECKSTONE LEDGE. 



[Sponge Ground off Clock Tower.] 



List of Species. Dredge. 



July 9th, 1901. 



PORIFERA. 



Halichondria panicea. The dredge came up filled with large masses of this sponge. 



HYDROZOA. 



Tuhularia sp. Several very small colonies. 



ECHINODERMA. 



Amphiura elegans. One or two. 

 Ophiothrix fragilis. Several small. 



TURBELLARIA. 



Lejitoplana tremellaris. One. 



POLYCH.ETA. 

 Enphrosyne foliosa. One. I Polymnia nebulosa. Small sj^ecimens. 



Nereis pelagica. Several specimens. I 



