36 B 
POY Oe BS) 
Canadian Arctic Expedition, 1913-18 
PLATE IV. 
lad arctius, n.sp. Crochet from twenty-third parapodium from caudal 
end. 
Anaspio boreus, n. sp. Anterior end, dorsal view. 
(Sete of third parapodia not represented.) 
Anaspio boreus, n.sp. Tenth right parapodium, anterior view. 
Anaspio boreus, n. sp. Distal portion of crochet from neuropodium of thirty-fifth 
parapodium. 
Spionid larva A, dorsal view. 
Spionid larva A. Crochet. 
