Plate 40. 



Fig. 1. Craniella simiWma (Bowerbank). From the side, showing conules 

 above, papillae below. Xf. 



2. ParatctiUa arcifcra. From the side, showing two poriferous pits; 



at the right, the body is covered with shelly incrusting material ; 

 some of the smooth under surface appears. XI. 



3. Gclliiis rarins, var. fibrosa. Three pieces of the same specimen, show- 



ing very flattened, moderately flattened, and subcylindrical shapes; 

 piece to the right is the end of a branch. XJ. 



4. Gelliiix (iiif/ulotus, var. vasiformis. From the side. X*. 



5. Pctrosia text u (I'm aria, var. fistulophora. Specimen from station 5253, 



from the side : specimen represents about a fourth of the whole 

 sponge. X I. 



6. Pctrosia testudinaria. From the side. X£. 



7. Strongylophora corticata. From the side. X} 

 510 



