110 TRANSACTIONS LIVERPOOL BIOLOGICAL SOCIETY. 
with the layer of peritoneum covering the gut. The 
internal organs of the fish were, apparently, quite normal, 
and the fish itself was in good condition, well-grown, and 
containing the usual amount of fat. It was a mature 
female, with unripe ovaries. The stomach was empty, 
and its lumen was greatly contracted, but the caecum and 
all of the pneumatic duct that could be explored were ful! 
of food, copepods, and schizopods. The caecum was the 
thickest part of the whole alimentary canal, and appeared 
to me to be developed to a greater degree than is usually 
the case. 


Oesop hagus 7 a ; = 
Stomach 7 
Fic. 6. Pilchard with hard fibroma on the peritoneum. 4 nat. size. 
The tumour itself is about 58 mm. long, 33 mm. deep, 
and about 23 mm. in thickness, the various diameters 
being placed as in the figure. It is very irregular in 
shape, the whole surface being nodular, in_ places 
resembling a part of the convoluted surface of a human 
brain. Itis very hard and firm, and has much the same 
consistency as a piece of soft cartilage, but is heavier. It 
cuts cleanly, but with some difficulty, on account of the 
denseness of the tissue. In liquid it has a semi-translucent 
