PLATE XLV. 
Aculcatus vel pungitius marinus longus. Ra^. pifc. p, 145 . n. 15 . 
Will. Ichth. p. 340 . t. X. 13 ./. 2 . app. 
p. 23 . 
Grande dpinodie. Rloc/t. Fifteen spined Stickleback. Penn. Brit. 
Zool. p. 263 . sp. 131 . 
Three species of this genus are natives of this country, the most 
common of which are the aculeatus and pungitius, two kinds that 
are found chiefly in rivulets, brooks, and other fresh waters. Gas- 
terosteiis spinacliia, the third species, is an inhabitant of the sea, 
and is never found in flesh waters, except by accident when it 
happens to stray to a short distance up rivers, that have an imme- 
diate cominunicatioh with the marine element. We have observed 
the fry of this latter species on the sea coast of Anglesea, especially 
in the bay of Holyhead, from whence we may conclude, that it 
breeds contiguous to the shore. A specimen of the full grown fish 
about five inches in length occurred also in this spot. 
Tiiere is every reason to presume that this species, although 
abundant in the northern parts of Europe, is very far from common 
on the sea coasts of this country. In the' Baltic and the North Sea, 
they are observed to be most frequent : Upon the coast of Holland, 
they appear sometimes in such vast numbers, as to be made use of 
for manuring the land. They are also caught for the sake of an 
oil that is expressed from them, which is used for burning in lamps, 
and other domestic purposes. The fish itself is seldom eaten except 
by the lower orders of people. 
