OF THE BAYS BETWEEN THE STAKT AND EXMOUTH. 551 



HIRUDINEA. 

 Pontobdella muricata. Occasional. 



POLYCH^TA. 

 Serpula sp. ? Common. 

 Xereis fucata (Sav.). In sliell with Hermit-crab. 



CRUSTACEA. 

 Maia squinado. Not uncommon. EupagurusBernhardus. Fairlj- common. 



Carcinus msenas. Few ; small. „ Prideauxii. Taken once. 



Portunus depiirator. Common. Homarus vulgaris. Taken once. 



Pinnotheres pisum. Occasionally. Galathea strigosa. Taken once. 



MOLLUSCA. 

 Mytilus edulis. Occasionally. Philine aperta. Not uncommon. 



Pecten opercularis. Common ; small. Aplysia punctata. Xot uncommon. 



Ostraea edule. Xot uncommon. ; Loligo Forbesii. Occasional. 



Buccinum undatum. Occasionally. i „ media (?). Occasional 



Cyprcea Europsea. Not uncommon. ' Sepia officinalis. Moderately common. 



TUNICATA. 

 Phallusia mammillata. Occasional. 

 Ciona intestinalis. Occasional. 



Station IX. 



This was the richest ground investigated, the commonest species 

 being Adinoloha dianthus, Echinv.s miliaris, Sfrpula sp., Gammariis 

 locusta, and Ostrcca edule, the last species being sufSciently common to 

 make oyster - dredging a profitable occupation. Both Se-qyida and 

 Actinoloha were generally attached to shells, notably the inside of 

 a Cypri'iw valve, and to stones. Among the less common species 

 which were not taken alive elsewhere were Synapta digitate., Ophiactis 

 Bcdli, Hcnricia scinguinolenta, Galathea squamifera, Protv.la tuhidaria, 

 Kellia suhorhicidaris, Cardium ecJnnatv.m, and Aporrhais pes-pelecani. 



Soil, fine sand, mud, and stones ; depth, 11-12 fathoms. 



List of Species. 



PORIFERA. 



Suberites domuncula. Occasional. 



HYDROZOA. 



Sertularella polyzonias. 

 Sertularia abietina. 

 Hydrallmania falcata. 



ACTINOZOA. 

 Alcyonium digitatum. Occasional. Adamsia palliata. Not uncommon. 



Sagartia parasitica. Common. Actinoloba dianthus. Very common. 



