BLOCKS GURNARD. 59 



ing comparative statements from his account of tlie anatomy 

 of the viscera of the T. gurnardus and of T. cuculus of Bloch, 

 the T. Blochii of this work, seems to me to prove that Cuvier 

 must have had two distinct species under examination. 



GREY GURNARD. 



Liver small, of three lobes, deeply divided, the left lobe 

 terminates in an elongated point. 



Stomach large, triangular, flattened above, parietes thin, 

 seven csecal appendages, four on the left side. 



Spleen elongated, three-sided. 



Swim-bladder large, in form like that of T. pint, i.e. 

 bilobed, and but slightly divided. 



Vertebrae : fourteen abdominal, twenty-four caudal. 



BLOCK'S GURNARD. 



Liver larger than that of any other Gurnard, the left lobe 

 divided, and forming several small lobules. 



Stomach small, in form a scalene triangle, five csecal ap- 

 pendages, three on the left side ; very long and very large. 



Spleen excessively small. 



Swim-bladder very small, oval, very slightly divided ante- 

 riorly. 



Vertebrae : thirteen abdominal, twenty-four caudal. 



Having stated that the various species of Gurnards are 

 chiefly obtained by a particular mode of fishing in the sea 

 called trawling, and representations being introduced at the 

 foot of the next two pages of a trawl-net, and the sort 

 of fishing-boat most common on the Sussex and Hamp- 

 shire coasts, it remains to describe both, and the mode of 

 using them. The boat is about twenty-five feet long, and 

 ten feet in the beam, or breadth. The average burthen 

 about ten tons ; and they carry three tons of ballast gene- 

 rally shingle, with some loose pigs of iron, which are shifted 



