FAUNA OF THE OUTER AVESTERN AREA OF THE CHANNEL. 323 



Raspailia stuposa (Montagu). 



Single specimens at Positions 31, 32, 51, 53, 60, 67, 80. 



Depth, 40-51 fath. 



The smallest example is 22 mm., the largest 50 mm., in height. 

 The growth is fairly uniform and symmetrical, the branches spreading 

 roughly in the same plane, and being much compressed laterally in a 

 plane at right angles to that of the growth. Pigmentation (in life 

 dark brown) is absent in specimens from Positions 51, 53, and 60; 

 moderately strong in those from 31 and 80 ; very deep, giving an 

 almost black appearance superficially, in those from 32 and 67. 



The stellate microsclera are very abundant in all the specimens. 



COELENTERATA. 



HYDROMEDUSAE. 



CLAVIDAE. 



Merona cornucopiae, Norman. 



On Dentalium entalis at Positions 1 (common); 11 (two; one with 



gonophores) ; 36 (one) ; and on Fedimculus glycimeris at Positions 



46 (one), and 51 (one). 

 Depth, 40-43 fath. 



HYDRACTINIIDAE. 

 Hydractinia echinata, Fleming. 



One colony on a young shell of F2m(s islandims at Position 52, 

 Depth, 43 fath. 



PODOCORYNIDAE. 

 Podocoryne (?) sp. 



At Position 49, in 47 fathoms, a small Hydroid colony was found 

 growing on a Macroi'todia, which, though lacking in certain adult 

 characters of this genus, is provisionally recorded under it because 

 there seems to be no other genus with which it can be associated. 



The colony consists of a large number of simple short polypes 

 arising directly from a hydrorhiza, which is composed of a close network 

 of anastomosing tubes. I have not been able to detect any trace of a 

 chitinous perisarc investing the hydrorhiza, or any cup-like processes 

 from the hydrorhiza surrounding the bases of the hydranths. The 

 hydranths, which number about 200, are closely crowded together, 

 and arise from a somewhat constricted base in direct continuation 

 with the simple tubular stolon. They were not examined in life, but in 



