POLYNOE. 119 



Aphrodita velox. 



Aphrodita velox, Dalyell, Pow. Great, ii. 169. pi. 24. f. 13. 



" Length 4 or 5 lines ; breadth a line : four distinct black eyes. 

 About twenty pencils issue from each side, together with eight or 

 ten aciculse, extending much beyond them, from each side also. At 

 first I believed the animal totally divested of scales, and that it was 

 a mere skeleton, but I afterwards observed a double row of about 

 ten vascular scales in each, covering the back, the sheaths aud their 

 pencils being almost invisible from extreme transparence, while the 

 more solid organs seemed predominant from shining through them. 

 There seemed to be an aperture in each scale." — Dalyell. 



Lepidonotus floccosus ? 



Sir J. G. Dalyell had a specimen of a Lepidonotus "extending 

 twenty lines, or nearly an inch and three-quarters," which had 

 sixteen pairs- of scales {Pow. Great, ii. 166). Audouin and Milne- 

 Edwards describe only one species with this number, — their Poli/no'e 

 fioccosa. 



Polynoe semisquamosa. 



Polynoe semisquamosa, Williams, Rep. Brit. Assoc. 1851, 201. f. 21. 



3. POLYNOE. 



Polynoe, Oersted in Kroyer, Naturh. Tids. 110 (1842); Grcenl. Annul. 

 Dorsibr. 11. 



Char. Body linear, of not less than seventy segments, covered 

 forwards with small scales in pairs, the hinder portion naked ; scales 

 alternating with dorsal cirri : branches of the feet connate ; bristles 

 simple : inferior cirrus single. Has the other characters similar to 

 Lepidonotus. 



1 . P. scolopendrina, scales fifteen pairs, not meeting on the mesial 

 line ; segments eighty-two and upwards ; teutacula and tentacular 

 cirri only a little thickened below the point, villous ; body yellowish 

 on the dorsum, with greenish spots, and muricate. Length 4" ; 

 breadth 4'". PI. IV. fig. 1-9. 



Polynoe scolopendriua, Savigny, Syst. Annel. 25. Aud. ^ M.-Edw. 

 Litt. de la France, ii. 92. Johnston in Ann. Nat. Hist. v. 30/. pi. 5. 

 Grube, Fam. Annel. 37. 



Hub. Shores of the south of England and of Ireland. 



Desc. Body linear-elongate, flattened, rounded in front and 

 slightly tapered behind, attaining a length of nearly 4 inches, and 

 about 4 lines in breadth ; the anterior portion of the back scaly, the 



