EXPLANATION OF PLATE IL 



Fic. 1. — 'id, Adelorephnhi bicohjr, stage III. 



Fig. 2. — 2a, Adelocephalxi bicolor, stage I^^ 



Fig. .3. — 3(7, Adelocepluda hicoloi; stage V; 3b, dorsal tubercle on fourth and si.xth abdominal segments, inside view; 

 3c, the same seen from the outside; Sd, the same, front view; 3e, the caudal horn; 3/, an abdominal 

 segment, showing a portion of the red and white lateral line, and spiracle. J. Bridgham, del. 



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