218 . Proceedings of the Royal Physical Society, 



Polycera quadrilineata (Mtill.). 



Upper lam., King's Cross, and Stations 



4,7. 



Triopid^. 



Ancula cristata (Aid. and Han.). 

 Station 5. 



EOLIDIDiE. 



PJolis papulosa (Linn.). 



Litt., King's Cross. 

 K coronata (Forb.). 



Stations 2, 4, 9. 

 E. rufihranchialis (Johnst.). 



Stations 7, 10. 

 K tricolor Q) (Forb.). 



Station 5. 



CEPHALOPODA. 



Eledone cirrhosits. 



Upper lam., King's Cross. 



In regard to the distribution of species in the bay, I am 

 convinced that the number of dredgings was not nearly 

 sufficient to warrant me in drawing conclusions in any 

 detail; still, a few cases impressed themselves strongly on 

 me, and may, I think, be mentioned with safety. Three 

 species of Hydroids — Halecium halecimom, Sertularella poly- 

 zonias, and Plumularia pinnata — seem to range over all the 

 area explored. Many others were found at one or a few 

 places only, but none appeared specially characteristic of any 

 particular spot. Among Echinoderms, Comatula and Porania 

 were very generally distributed, while Palmipes and Astro- 

 pecten were only taken at the south end of Holy Isle. 

 Echinocyamus on the other hand occurred only at Stations 

 10, 11, and 12, off the north end of Holy Isle. 



In the Crustacea we find Stenorhyiichus phalangium and 

 Galathea andrewsii in all parts of the bay, while Eurynome 



