FAUNA OF THE OUTER WESTERN AREA OF THE CHANNEL. 383 



the upper curve of the latter. The free surface (the animal is 

 attached by the whole left side of the body) is finely cornulated. 



CIONIDAE. 

 Ciona intestinalis (Linnaeus). 

 At Positions 3 (two), 4 (one), 10 (one), 12 (one), 34 (two), 40 (one), 

 44 (one), 49 (two), 59 (many massed together), 67 (one), 70 (many 

 on the inner surface of Pcctcn shells or massed together). 

 Depth, 40-52 fath. 



DIDEMNIDAE, 

 Didemnum [Leptoclinum] perspicuum (Giard). 

 At Position 3 (two). 

 Depth, 40 fath. 



Leptoclinum [Diplosoma] gelatinosum, Milne-Edwards. 

 At Positions 1 (one), 3 (one), 4 (two), 59 (one). 

 Depth, 40-49 fath. 



CEPHALOCHORDATA. 



Amphioxus lanceolatus (Pallas). 



At Positions 5 (one), 11 (one), 21 (one), 48 (five), 50 (one), 57 



(eight), 58 (three). 

 Depth, 42-49 fath. 



VERTEBRATA. 

 PISCES. 



The infrequent use of the trawls must be borne in mind with reference to the 

 comparatively few fishes recorded. 



ELASMOBRANCHII. 



SCYLLIIDAE. 

 Scyllium canicula (Linnaeus). 

 One specimen at Position 7. 

 Depth, 42 fath. 



EAIIDAE. 

 Raia clavata, Linnaeus. 



Single specimens at Positions 8 and 66. 

 Depth, 44-52 fath. 



Raia circularis, Couch. 



At Positions 49 (one), and ^^ (three). 

 Depth, 47-52 fath. 



