598 TRANSACTIONS LIVERPOOL BIOLOGICAL SOCIETY. 
Features, of) the livine Niele 
chaeta.—The gut was of a clear green colour, and full 
of globules of some (nutritive ?) substance. The external 
tissues were brownish and more opaque, the anal segment 
being distinctly darker than the rest. 
The prototroch consisted of long cilia 80” in length 
—possibly there are shorter cilia as well. The cilia of 
the telotroch were 60 long, and a complete amphitroch 
of 15 cilia encircled every segment in a plane just 
behind the equatorial. 
Two pairs of cephalic tentacles were present, one 
pair situated slightly anterior, and the other slightly 
ventral, to the eyes; they were short and transparent; 
no median tentacle could be distinguished. There 
appeared to be an akrotroch between the eyes, but this 
could not be seen at all distinctly. 
Except for the absence of the median cephalic 
tentacle, these Nectochaetae closely resemble Mulalia 
(Humida) sanguinea, a species that has been found at 
Port Erin in a condition of sexual maturity at about the 
time when these larvae occur, and to which they may 
belong: for although the median tentacle is one of the 
distinguishing characters of the genus Hulalia, it is 
conceivable that it might not develop until a later stage. 
Phyllodocid C.—Only a single larva of this species 
was obtained. This has eleven pairs of parapodia; and 
now that the larva is fixed, the ramus of each para- 
podium is about twice the length of the thick conical 
dorsal and ventral cirri. In species #8, which it 
resembles in size, the cirri project beyond the ramus in 
fixed specimens. No tentacular cirri are present, and 
the first pair of chaetigerous appendages appear to belong 
to the peristomial segment, characters which separate 
this form from all other Phyllodocids known to me. The 
