448 ON Tilt: FAUNA AND BOTTOM-DEPOSITS NEAI! THE 30-FM. LINE 



hulks, etc. It also, however, is not uufretiueutly met with, according to 

 various authors, on line sandy or muddy ground. Hincks (No. 46) 

 quotes Thomas as saying that "on the oozy bottom which lies outside 

 a line drawn between Flamborough Head and the Staples " it grows to 

 a very large size. According to the same author Forbes found it in 

 Eothesay Bay, flourishing, as it seemed, " upright, on a muddy ground, 

 like a flower, fixed by the tapering root-like termination of its horny 

 case." Schulze (No, 105) records it in a number of the Pommerania 

 hauls, from bottoms of sand and shell at depths from 23 to 50 fathoms. 

 The entire absence of the species from all the sand and gravel grounds 

 examined during the present investigation is therefore noteworthy. 

 Indeed, I know of no such locality in this neighbourhood where the 

 species lives. 



Clytia Johnstoni (Table VI.). Abundant on all grounds where other 

 hydroids or Ccllaria are common. It appears to grow less frequently 

 upon Halecium halecinum and Beanii than on Sertularians and Hydrall- 



mania. 



Distribution. Geographical. Nonvay to the Mediterranean, Baltic, Greenland, 

 Alaska, east coast of North America (fide Hartlaub, No. 38). 



Depth. To 50 fathoms (?). 



Habitat. On algae and hydroids. 



Ohelia dicliotoma (Table VI.). This species has been met with on fine 

 sand grounds in the neighbourhood of the Eddystone, and occasionally 

 on the Bolt Head Shell Gravel and the Prawle Stony Ground. It was 

 found growing on Pccten opercidaris shells, on other hydroids {Hyclrall- 

 mania, Bougainvillia, Sertularia argentea), and on Ccllaria. 



Distribution. Geographical. Norway, Baltic, British Seas to Mediterranean {fide 

 Hartlaub, No. 38). 



Depth. 6-29 fathoms. 



Habitat, On shells, algae, and other zoophytes. 



Ohelia longissima was only found in haul 80 on Ground VII., south of 



the Eddystone. 



Distkibi'tion. Geographical. Circumpolar, Norway to British and Belgian Coasts 

 {fide Hartlaub, No. 38). 



Depth. To 20 fathoms (Hartlaub). 



Campanularia Uinchsii is generally distributed on the grounds ex- 

 amined, growing sometimes on shells, sometimes on Ccllaria, and 

 probably less frequently on hydroids. 



DisTKiisuTiON. Geographical. British Coasts (Hincks, No. 46). 

 Depth. 10 or 20 fathoms to deep water (Hincks). 

 Habitat. On zoophytes, etc. 



Campanularia verticillata (Table VI.). Occasional specimens were 

 taken on the fine sand grounds, I., III., and VI., in the neighbourhood 

 of the Eddystone. A fine colony was taken growing on a stone in 

 haul 45 on the I'rawle Stony Ground (XVIII.), and it was also met 

 with in hauls 28 and 60 on the Bolt Head Shell Gravel. 



