Parotoplana rosignana sp. nov.: Morphology, taxonomy and post‐embryonal development of a new species of otoplanid (Plathelminthes, Rhabdithophora, Proseriata)

Figures & data

Table I. List of sampling localities.

Localities	Date	Granulometry
Castiglioncello in Caletta Beach (43°23′46″N, 10°25′38″E)	12/05/2003	Sand mixed with gravel
Castiglioncello in Caletta Beach (43°23′46″N, 10°25′38″E)	25/05/2004	Sand mixed with gravel
Castiglioncello in Caletta Beach (43°23′46″N, 10°25′38″E)	11/06/2004	Sand mixed with gravel
Castiglioncello in Caletta Beach (43°23′46″N, 10°25′38″E)	01/07/2004	Sand mixed with gravel
Castiglioncello in Caletta Beach (43°23′46″N, 10°25′38″E)	10/11/2004	Sand mixed with gravel
Castiglioncello in Caletta Beach (43°23′46″N, 10°25′38″E)	04/04/2005	Sand mixed with gravel
Marina di Cecina (43°17′44″N, 10°29′43″E)	04/04/2005	Fine sand
Quercianella in Cala Sonnino (43°27′40″N, 10°21′38″E)	04/04/2005	Gravel
Rosignano Marittimo (43°23′5″N, 10°25′50″E)	04/04/2005	Intermediate sand
Castiglioncello in Caletta Beach (43°23′46″N, 10°25′38″E)	03/05/2005	Sand mixed with gravel

Figure 1 Habitus of Parotoplana rosignana sp. nov.: th = tactile hairs, sw = cephalic swelling, sta = statocyst, b = brain, i = intestine, te = testes, ge = germaries, vi = vitellaries, ph = pharynx, s = sclerotic apparatus, vg = vesicula granulorum, vs = vesicula seminalis, c = cocoon and ap = adesive papillae.

Figures 2–5 Photographs ofParotoplana rosignana sp. nov. in vivo: 2–3, living animals; 4, Anterior end; 5, Posterior end.

Figures 6–8 Photographs(6–7) and spatial distribution (8) of the spines of male sclerotic apparatus of Parotoplana rosignana sp. nov. S = funnel‐shaped sting.

Figure 9 Representation by drawings and photos of the life cycle ofParotoplana rosignana sp. nov.: sw = cephalic swelling, sta = statocyst, b = brain, i = intestine, te = testes, ge = germaries, ph = pharynx, vi = vitellaries, s = sclerotic apparatus, vg = vesicula granulorum, vs = vesicula seminalis, c = cocoon, ap = adhesive papillae, vc = vitellocytes, iesg = internal egg‐shell granules, eesg = external egg‐shell granules, c = cocoon, dc = digestive cells and gz = growth zone.