Rafinesque on a fosstl Medusa. 285 
FOSSIL ZOOLOGY. 
— 
New-York, 11th mo. 21st, 1820. 
BENJAMIN SILLIMAN. 7 
Respected Friend—At the request of C.S. Rafinesque, 
I take the liberty of PEA OnE f his description of a suppos- 
ed fossil medusa, contained sent by him to the 
Academy of Natural ee “ot f Philadel hia some time 
ago. e = per by some accident got ms ae or it sheold 
have been forwarded long before 
I remain with best wishes, and sincere respect, 
Thy friend. 
REUBEN HAINES. 
Arr. VIII.—Description of a fossil Medusa, Jerming a 
new genus. ‘Trianisites Cliffordi, by C. S. Rari- 
The genus Medusa of Li s now become, Pee 
multiplied observations and sa of man: 
an extensive tribe of animals, containing a great many gene- 
ra and more than two hundred species. Ihave myself dis- 
covered in Sicily and in the Atlantic ocean many new ones, 
mean to describe now a fossil one, which has been discov- 
ered in Rentagky, , by my worthy friend John D. Clifford of 
vhose collection I have seen it. I believe 
and I do not at present remember any author’s mentioning 
any species found fossi! in Europe. is may therefore be 
entirely a new discovery, t to which we are indebted to the 
the 
s of Mr. rd; the only merit I claim 
is of having asce ascertained that his specimen does not long 
to any known genus, and is ther , anextinct one. IJtis: 
ow Professor of Botany and Natural ibieryin Transylvania Univer- 
mg, eg 
