4 Prof. M‘Intosh’s Notes from the 
the desiccation. What appeared to be the anterior end 
presented two rounded processes with a slit (mouth?) between 
them. ‘This area was followed by six or seven narrow rings, 
each increasipg on its predecessor. Behind these the seg- 
ments were wider, aud by-and-by showed two rings. The 
body seemed to be somewhat fusiform in outline, diminishing 
at each end, the posterior region presenting narrower rings. 
A groove occurred on each side anteriorly and probably 
continued to the posterior region, but the condition of the 
examples rendered this ambiguous. In this groove were 
the branchize, which appeared to extend almost from end to 
end, arising in front of the bristle-tufts and forming clavate 
organs (in the dried condition) of some length. The state 
of the specimen precluded absolute accuracy in this respect, 
and also as to whether some may have been bifid. They 
sprang from the anterior edge of the fold of the segment 
somewhat below the bristle-tufts. The entire surface of the 
body was covered with a tough (almost chitinous) cuticle 
minutely reticulated, so that under a lens it resembled very 
fine shagreen. Under the microscope rounded areas with a 
definite rim appeared, 
The pale golden bristles formed two separate tufts in each 
segment, the dorsal consisting of long, tapering, simple 
bristles (Pl. I. fig. 2) similar to those in Humenia crassa, 
but having no bifid spinous forms amongst them. 
The ventral tuft, again, has long bristles (Pl. I. fig. 1) 
and the tip (Pl. LII. fig. 6) of similar shape, but closely 
spinous throughout the distal third or more. When covered 
with débris or the crystalline rods found in old spirit-prepa- 
rations, these spines may be overlooked, though it was the 
regularity of the crystalline rods which at first directed 
attention to these spikes. 
So far as known no Humenia or Lipobranchus presents 
the features of this species, simple bristles finely tapered at 
the tip and shorter bifid spinous bristles characterising the 
known forms. Moreover, the presence of branchiz through- 
out the body is another feature of moment, and in this it 
avrees with 1. hystricis. 
Genus FavuveLiopsis, nov. 
Prostomium rudimentary ; cephalic region blunt, with 
bristles on each side. Body definitely segmented, divisible 
into anterior, middle, and posterior regions and grooved 
ventrally. Dorsal and ventral bristles with a pear-shaped 
papilla between them. The stouter anterior bristles present 
a terminal hook. 
