40 3 Canadian Arctic Expedition, 1913-18 
PLATE VI. 
1. Chone ungavana, n.sp. Inferior spatulate thoracic seta from somite V. 
2. Chone ungavana, n.sp. Thoracic uncinus or crochet. 
«3. Chone ungavana, n. sp. Abdominal uncinus. 
4. Chone ungavana, n.sp. A second uncinus from same torus nearer end of series. 
