314 manual of natural history. 



terminated always by a distinct head often provided 

 with, eyes and jaws. Dermoid appendages usually 

 disposed over the entire length of body ; pediform 

 tubercles furnished with bristles, 



I. SUB-ORDER. — Antennate-Annelids (Antennata). 



Head distinct, with antennae more or less deve- 

 loped ; eyes ; and usually a proboscis armed with 

 jaws. 



1. Family. — Sea-Centipedes (Nereidae). Mouth with 



one pair of jaws ; body slender ; gills in the 

 form of small laminae ;- feet with two tuber- 

 cles, two bundles of bristles and a cirrhus 

 above and below. 



2. Family. — Eunices (Eunicidae). Mouth with three 



pairs of horny jaws; body elongated; gills in 

 the form of tufts ; feet with two cirrhi and 

 a bundle of bristles. 



3. Family. — Amphinomes (Amphinomidae). Mouth 



without jaws ; body broad, depressed ; gills 

 crested or tufted, on each ring of body ; feet 

 with two bundles of bristles and two cirrhi. 



4. Family. — Sea-Mice (Aphroditidae). Mouth with- 



out jaws ; body broad, depressed, with two 

 ranges of broad, membranous scales ; gills 

 tufted, under the scales ; feet with cirrhi and 

 tufts of bristles. 



5. Family. — Polynoes (Polynoidae). Mouth with 



jaws ; head with five tentacles ; body simple, 

 without scales ; feet with cirrhi and tufts of 

 bristles. 



