360 TRANSACTIONS LIVERPOOL BIOLOGICAL SOCIETY. 



tubes were found, and the polychaets, themselves, were 

 frequently found in the tubes and also free in the mud. 

 One small Galathea was also found, as well as several small 

 amphipods, ophiuroids, and echinoid spines. 



The fauna of this sample seems to show that the sea- 

 bottom, at this particular point, is suitable for soles, plaice, 

 and dabs, and this expectation is partly, at any rate, confirmed 

 on an examination of my trawling records. 



XYII. [9a and 9b.] 26/2/13. 20 miles S.W. of Morecambe 

 Bay Ship- 

 On arriving at this station it seems that the mud has 

 disappeared again, for this sample consists of a beautifully 

 clean, but very coarse deposit of small stones, shells, and sand. 

 As the two samples obtained are identical in every way I shall 

 describe them as one. 



The stones appear to be well water-worn, but as they are 

 covered in most cases by growths of organic matter, the 

 erosion must have been done previous to their arrival in their 

 present position. In some cases they support the growth of 

 zoophytes, serpulae, and botrylloids, while a small ascidian is 

 found in one case. The shell sand is very rough — the majority 

 of pieces being large. Many genera are represented, those 

 identified being : — Nucula (many), Venus, Pecten, Balanus, 

 Trochus, Cardium (many), Syndosmya and Lima. The quartz 

 sand consists of a mixture of rounded (or partially rounded) 

 and angular grains, the number of the latter being in the 

 ascendancy. Many of these are stained by iron oxide. Magne- 

 tite or titanoferrite is common. The quartz grains are, on 

 the whole, fine. 



Besides the invertebrates mentioned above as occurring 

 on stones in the deposit, several pieces of sabellid tubes were 

 found, while echinoid spines and branching polyzoa were com- 

 mon. No trace of mud is noted. 



