16 AET. II. A. IZUKA : 



1870. Polynoë grubiana, Claparede. Siippl. Annel. CLetop., 9 (373), 

 pi. i, f. 2. 



1875. Ijepidonotus clava, Marenzeller. Sitzb. der K. Akad., 1 Abtli., 

 Juli-Heft, p. 1. 



1876. Lepidonotns clava, McTntosh. Trans. Z. S, ix, p. 374. 



1881. Polynoë clava, Langerhans. Cauar. Annel., Nova Acta, 42, iii, 

 p. 108. 



1884. Polynoë clava, A. G. Bourne. Trans. Linn. Soc. Zool., ii, pp 

 347-356, pis. xxiv^-xxvi. 



„ Lepidonotus clava, Cams. Fann. Medit., p. 202. 



1885. Polynoë grubiana, Jourdan. ZooL Anz., viii, p. 128, f. 1, 2. 

 1887. „ „ Jourdan. Arch. Zool. Exper., v, pp. 115-120, 



pi. iv, f. 11, 12, 16, 17. 

 1898. Lepidonotus clava, De Saint-Joseph. Ann. d. Sc. uat., 8 ser., v. 



p. 225. 

 1900. Lepidonotus clava, Mcintosh. Brit. Annel. ii, p. 280, pi. XXVI, 



fig. 1. 



Body, consisting of 28 segments, 18 — 23mm. in length; 

 the breadth 2.8 — 3.0 mm. without, and 6.0 — 6.5 mm. with, para- 

 podia and bristles. 



Dorsum of a dull brownish hue, speckled with white ; elytra 

 with dark mottling, ^''entrai surface pale, with some dark tints 

 aljout the mouth and on the sides of the posteriormost region of 

 body. The nephridial papillae in the posterior half of the body 

 have the column dark and the tip whitish. 



Prostomium similar in outline to that of Polynoë sqiiamata ; 

 bounded posteriorly by nuchal collar. The larger anterior eyes 

 are in front of the middle of prostomium. The broad basal region 

 of the median tentacle is anteriorly more distinctly separated from 

 the base of lateral tentacles than in P. sqiiamata ; median and 

 lateral tentacks thicker, and the bulbous region below tip" 



