The proposed neotype (ICZN 999, Art. 75.three.five), and distinct from the other Mediterranean
The proposed neotype (ICZN 999, Art. 75.three.five), and distinct in the other Mediterranean species, S. thalassemoides Otto, 82, since it has a rather straight posterior margin. This feature is consistent and has been discovered within the studied components; they included specimens from the eastern Italian coast, which will be similar to the original kind locality (Adriatic Sea). Nonetheless, the most effective specimen was selected as neotype and it was collected inside the Aegean Sea, some distance from the original form locality (ICZN 999, Art. 75.three.6). As stated above, there had been no variations among the supplies 
studied. The neotype and added paraneotypes happen to be deposited in the Royal British Columbia Museum (ICZN 999, Art. 95.three.7).Revision of Sternaspis Otto, 82 (Polychaeta, Sternaspidae)As stated above, S. scutata differs from S. thalassemoides by shield features, especially relating to their fan improvement; in S. scutata it is actually notched and markedly expanded beyond the degree of the posterior corners, whereas in S. thalassemoides it is actually truncate, whole, and not expanded beyond the posterior corners level. Additional, S. scutata is distinctive inside the genus by a combination PubMed ID:https://www.ncbi.nlm.nih.gov/pubmed/12172973 of functions of their shields: the anterior margins are truncate, the lateral margins are straight or barely rounded, and also the posterior margin and fan are markedly expanded beyond the posterolateral corners. Distribution. Mediterranean Sea for the English Channel, 96 m depth. Deeper water records from the Eastern Mediterranean (BenEliahu and Fiege 995) PRIMA-1 site deserve a cautious comparison to define if they’re conspecific with all the shallow water material. Some records from nonMediterranean or Northeastern Atlantic localities could possibly belong to other, in all probability undescribed species. Following segments with welldefined single rows of clustered, longer filamentous, white papillae; bigger specimens with median segments papillae eroded. Neotype 7.5 mm lengthy, eight.7 mm wide; physique as much as 20 mm lengthy, 8.five mm wide, about 29 segments. Prostomium hemispherical, opalescent in bigger folks, translucent in smaller sized individuals. Peristomium rounded, little. Mouth oval, covered by papillae (vibrant white in smaller sized specimens), extends from prostomium to anterior edge of second segment.Figure four. Sternaspis spinosa Sluiter, 882, Neotype (NHM 889.six.5.52, No. 36) A Full, ventral view B Exact same, anterior end, exposed, oblique lateral view C Identical, ventrocaudal shield. Bars: A .four mm B .0 mm C 0.8 mm.Revision of Sternaspis Otto, 82 (Polychaeta, Sternaspidae)Initial 3 anterior chaetigers with over 0 bronze, extensively separated, falcate hooks (paler in smaller specimens), every single with subdistal dark locations (Fig. 4B). Genital papillae protrude ventrally from intersegmental furrow between segments 7 and eight. Preshield area with 7 segments, with brief delicate fascicles of some capillary chaetae on some specimens. Ventrocaudal shield pale brown, normally clean, at times with adhered sediment; ribs not welldefined, concentric lines present; suture extended all through shield, barely visible. Anterior margins angular; anterior depression shallow; anterior keels exposed (Fig. 4C). Lateral margins rounded, expanded posteriorly. Fan truncate, barely projected beyond posterior corners, margin crenulated. Marginal shield chaetal fascicles involve 0 lateral ones, chaetae inside a slightly curved arrangement, and 5 posterior fascicles, chaetae in a narrow oval arrangement. Peg chaetae narrow, occasionally provided that posterior shield chaetae. Additional d.