On the Submarine-Cable Fauna. 169 
EXPLANATION OF PLATE XV. B. 
wg. A. Pelagonemertes Rollestoni, from the ventral surface. X 2 diameters. 
1, mouth, with cesophagus; 2, partly protruded proboscis ; 
3, nerve-ganglia; 4, nerve-cords; 5, ovaries; 6, digestive canal. 
The sheath of the proboscis is seen through the body lying 
behind the digestive canal. 
Fig. B. Sketch of the proboscis-sheath and contained retracted proboscis, 
from the dorsal aspect: 1, retractor muscles inserted into the 
commencement of the sheath. 
Fug. c. 1, one of the polygonal areas, enlarged, showing the wrinkles of 
integument producing the appearance; 2, peculiar appearance 
of some of the folds of the integument. 
fig. p. Reticular appearance of the integument observed in certain parts 
of the body. Natural size. 
XXI1.—Submarine-Cable Fauna. By J. Gwyn JEFFREYS, 
LL.D., F.R.S., and the Rev. A. M. Norman, M.A. 
[Plate XII.] 
A NOVEL and unusual method of collecting specimens of the 
marine Invertebrate fauna is by means of the telegraph- 
cables which are laid down along so many of the great ocean 
highways. These cables occasionally need repairs, and must 
be taken up for that purpose. An opportunity has lately 
occurred, through the kindness of Sir James Anderson, of 
observing the animals which were found attached to the 
Falmouth-and-Lisbon cable, laid in June 1870, and taken up 
last autumn for repairs between N. lat. 47° 58’ and 47° 35/, 
and in W. long. 7° 6’, at depths ranging from 89 to 205 fathoms 
on the edge of soundings; bottom sandy. Such depths are 
now not considered great; but the ground seems to have 
been hitherto unexplored by the dredge. The accuracy 
of the communication made by Sir James Anderson is un- 
questionable, and differs in that respect from the informa- 
tion which misled M. Alphonse Milne-Edwards, when he 
published a list of the animals attached to a cable which 
was taken up several years ago between Cagliari and 
Bone. 
The Mollusca thus procured are interesting only for the 
sake of locality; they will be noticed by Mr. Jeffreys. An 
account of the other Invertebrates, including some new forms, 
will be given by Mr. Norman. 
