Polycirrus paivai Garraffoni & Costa, 2003

Polycirrus paivai Garraffoni & Costa, 2003 View in CoL

Fig. 46a–e View FIGURE 46

Polycirrus paivai Garraffoni & Costa, 2003: 5–6 View in CoL View Cited Treatment , figs 5–9.

Type locality. Abrolhos Archpelago , Brazil , 17˚58ʹ44ʺ S, 38˚42ʹ41ʺ W.

Material examined. None.

Description. Based on type description. Hototype complete, 10 mm long, 0.72 mm wide, about 55 segments.

Venter anteriorly with mid-ventral groove and discrete ventro-lateral pads; pads incised with slight transverse grooves, extending from segment 4. Mid-ventral groove from segment 4.

Buccal tentacles of one type. Upper lip prominent medial lobe, small wing-like lateral lobes, margin of medial lobe straight; oral surface glandular and ciliated. Outer lower lip flat, shield-like, pentagonal, large and cushionlike, ridged and grooved, extending posteriorly to segment 3 ( Fig. 46a View FIGURE 46 ).

Notochaetigerous segments 12, extending to segment 14. Notopodia more-or-less rectangular, prechaetal lobe low, postchaetal lobe digitiform, longer than prechaetal ( Fig. 46b View FIGURE 46 ). Notochaetae within a chaetiger consisting of two types, pinnate ( type description does not say if these are primary or secondary), posteriorly same form as those anteriorly; presumed secondary notochaetae in all chaetigers smooth, narrowly winged, uniformly tapered ( Fig. 46c, d View FIGURE 46 ). Neurochaetae beginning on segment 12, 9–12 uncini per row throughout. Uncini with short neck and straight to convex base ( Type 1), teeth above main fang arranged in double transverse series ( MF:3:2) subrostral process present as low protuberance ( Fig. 46e View FIGURE 46 ) .

Nephridial papillae not visible.