162 Prof. M‘Intosh’s Notes from the 
cut out of the first segment. Inferiorly a median groove 
occurs. Body 5 or 6 inches long, very little narrowed ante- 
riorly, remaining of nearly uniform breadth for a considerable 
distance, and then diminishing towards the tail, which is 
absent in the examples. The two segments behind the head 
agree with the Lumbriconereid type, the first being narrower 
Fig. 9, 
Dental apparatus of Drilonerets canadensis. a, maxille and dental 
plates; 6, mandible. Enlarged. 
dorsally (from the concavity in the centre anteriorly) and 
wider ventrally, where it has a series of Jongitudinal wrinkles, 
In spirit the body is rigid and moniliform, the feet projecting 
at the widest or median part of each segment. 
