88 Dr. Dekay on the Pennatuie Fleche. 
Thus we have seen, this animal has been first ranked asa 
Lernea, a parasite, then considered asa pennatule or po- 
lype, afterwards placed in the genus Calygus as a crusta- 
ceous animal, and finally, it has been decided that it shall oc- 
cupy anew genus as an Annelide. So much difficulty with 
respect to its proper place, clearly proves that with the ex- 
ception of Pallas and Esper, they are completely ignorant 
of the animal under consideration. 
ge ae, BRON. 
Body one inch in length, met tea cylindrical, of a 
purple color and inserted $ of its length, underneath the 
skin of the fish to which it was polation, all the part be- 
neath the skin white, mouth terminal, irregular, present- 
ing a ds $5 Hi appearance, with several minute holes. 
mule on each side, nearly equal in length, and six- 
teen or seventeen in number on each side—cylindrical, their 
aed extremities: in which a black spe 
role eee ler ‘he Plu: cee wieel 
etine froin thé ekneitiey, i The tegument: 
consist of two pncresif the outer thick, purple and co- 
riaceous; the inner pale and delicate. I observed nothing 
internally except some whitish fibres, running in a longitu- 
dinal direction and converging towards the upper extremity ; 
neither stomach nor ovary was apparent. From these few, 
and I am sensible imperfect observations, we may be satis- 
fied that it does not belong to any genus as 
Since De La Marck commenced 
the order of Polypes tubiferes, shiaing Ber r genera. The 
animal under consideration belongs to this order ; but 2 
