32 AET. II. — A. IZITKA : 



width between ends of parapodia of the same segment, 4.5 mm.; 

 same between ends of lateral bristles of ditto, ö mm. 



Prostominm (PI. IV, fig. 6) as broad as long, the maximum 

 breadth about equal to the distance between its posterior border and 

 anterior end of lateral tentacular ceratophore. Eyes black, round ; 

 anterior pair on lateral j^rostomial prominences ; posterior pair 

 smaller, on postero- lateral borders of prostominm. Median tentacle 

 with ceratophore longer than that of lateral tentacles ; its style 

 about 2J times as long as the greatest breadth of prostomium ; 

 the subterminal bulb and the slender terminal filament together 

 make up nearly f of the entire length of the style. Lateral ten- 

 tacle short, with ceratophore directly continuous with prostomium ; 

 its style reaching with tip to base of the subterminal bulb of 

 median tentacle. Both tentacles smooth, of a brownish general 

 colour, deepest at base of the sabterminal bulb which for the rest 

 is colourless ; a dark brownish ring around base of the terminal 

 filament of median tentacle. 



Subtentacles long and slender, gradually tapering froui base 

 distally ; with a short terminal filament, which reaches nearly to 

 tip of median tentacle. 



Tentacular cirri similar in form and colour to tentacles ; dorsal 

 tentacular cirri nearly as long as median tentacle ; ventral tenta- 

 cular cirri shorter. 



Body consists of 66 segments, exclusive of pygidium ; smooth 

 on l)oth dorsal and ventral surfaces. Nephridial papillae commence 

 t(j occur from the 8th segment and continue to occur down to tlie 

 62nd segment. Ventral surface of body of a light pinkish colour 

 anteriorly, with faint metalic iridescence ; posteriorly of a pale 

 colour. Dorsum light brownish anteriorly and pale posteriorl3^ 



Elytra in 37 pairs borne on segments 2, 4, 5, 7 29, 30, 



