MISCELLANEOUS. 261 
Twenty years later, six specimens were obtained on the Isle of May, 
not less than thirty miles distant, and from the whole I have been able 
to gain some slight acquaintance with this smgular animal,—singular, be- 
cause human vision can scarcely discover what is of sufficient size to ex- 
pose every feature. Hence it is that there must be always slight discre- 
pancies between the drawings of different artists. 
This animal is towards an inch in length. It might be inscribed in 
atriangle. The head is forked or cleft, furnished with two long antenne 
issuing from the sides, between the roots of which, or somewhat behind 
them, are two black eyes, rather oval, and probably compound. If the 
body is divided mto segments, they are invisible from transparence. If 
so, the segments consist of a central portion, as the central part of the 
Nereis, and a long arm, an integral part towards each side, gradually shor- 
tening from the middle to the lower extremity, which is pointed. To- 
wards this extremity they degenerate into mere stumps, which seem to 
be successively developed as arms. Sixteen or seventeen of these arms 
were conspicuous in fig. 17, and fourteen or fifteen in fig. 16. In some 
others were four or five or seven pair of limbs or arms. The extremity 
of the limb is cleft, and terminates in two portions like hollow walnut 
shells, fig. 11. To some of the artists the termination seemed a pencil. 
An intestinal organ traverses the whole length of the body. 
This animal is absolutely colourless ; it can be distinguished from 
the water only when in particular positions, and under a particular inci- 
dence of the light. 
It swims horizontally, and then partly by faint undulations. In 
this position the greater convexity of the back, and slighter convexity of 
the belly, are sensible. It always seeks the higher part of the water, near 
the surface, like the Medusz, keeping the antennz recurved. 
I sometimes believed that segments were indicated on the under 
surface ; that the whole was crossed by wrinkles which were effaced on 
extension ; and one of the cleft extremities of the limb also seemed to 
move as if by a joint ; and the hollows of some contained a minute yel- 
low body like an ovum. 
The animal is rather of a gelatinous appearance. It can be preser- 
