FKOM THE EDDYSTONE GROUNDS TO START POINT, 453 



Distribution. Geographical. British Seas and coast of Normandy (Hincks), New 

 Zealan<l (Allman, No. 2). 



Depth. To 374 fathoms (Allman, No. 4, Porcupine). 



Sertularella pohjzoiiias (Table VI., p. 530). In the earlier hauls I did 

 not distinguish between S. Gai/i and S. jjoli/zonias, until the difference 

 between the two forms was pointed out to me by Mr. Browne. The 

 distribution of S. iwbjzonias is practically identical on the Eddy stone 

 Grounds with that of >S'. Gcnji, though it is much less frequently met 

 with, generally not more than two or three pieces being found amongst 



a large mass of S. Gayl. 



Distribution. Geographical. Kara Sea, Norway, Kattegat, Baltic, North Sea (not 

 frequent at Heligoland), British Coasts, Madeira, Mediterranean, Alaska, Greenland, 

 east coast of United States, Florida, Australia and New Zealand, Chili, Soutli Africa 

 {fide Hartlaub, No. 38 ; Alhnan, No. 2, p. 160 ; and Hincks, No. 46). 



Depth. To 374 fathoms (Allman, No. 4, Porcupine). 



Habitat. On sliells, sea- weeds, etc. (Hincks). 



Dii^hcisia rosacea (Table VI.). Only occasionally met with, in hauls 82 

 and 99 on the Eddystone Grounds, 4 and 29 on the Prawle Stony 

 Ground. 



Distribution. Geographical. Faroe, British Coasts, North France, Massachusetts 

 Bay {fide Hartlaub, No. 38). 



Depth. Tide-marks to 50 fathoms (Hincks, No. 46). 



Habitat. On other zoophytes (cliieiiy) and on shells. Hartlaub found it on Tttbularin 

 indivisa and on Sertularia cupressina. Schulze (No. 105) records it three times in the 

 Pommcrania dredgings on sand and shell. Packard found it very abundant on gravelly 

 bottom, in 50 fathoms, iu Straits of Belle Isle. 



Di])1iasia a.ttenuata. In hauls 23 and 24 on the fine sand of the 

 outer trawling ground (II.), and in haul 21 on the Bolt Head Shell 

 Gravel. Never plentiful. 



Distribution. British Coasts, generally on other zoophytes (Hincks, No. 46) ; 

 Australia (von Lendenfelt and Hincks), South Africa (Allman, No. 2). 



The Pommcrania took it twice on sand and shell, once on small stones. 



Diphasia tamarisca. In haul 99 south of the Eddystone, and in 

 haul 28 on the Bolt Head Shell Gravel. Small colonies only. 



Distribution. British Coasts, Bay of Biscay, Grand ^lanan, Massachusetts Bay 

 (Hincks), Mediterranean (Carus, No. 14). On shells and stones from deep water. The 

 Pommcrania took it once on sand, shell, and small stones in 30 fathoms (Schulze, No. 

 105). 



Sertularia ahictina (Chart II.). This species is characteristic of the 

 fine sand of the outer trawling ground (Ground II.), where it is taken 

 in quantity. It is not present on the fine sand of the inner trawling 

 ground (Ground I.), nor on any of the grounds in the neighbourhood 

 of the Eddystone. It is frequently taken on the Bolt Head Shell 

 Gravel and on the Prawle Stony Ground, being abundant in some of 

 the deeper hauls (especially hauls 7, 28, 4, and 45). 



In haul 28 it was growing largely on Peden opcrcularis shells, but 

 I unfortunately have no notes on its attachments in other hauls. 



