Approach (Fig. H). Colour white, slightly opalescent, dirty white on posteriorProcess (Fig. H). Colour white,

Approach (Fig. H). Colour white, slightly opalescent, dirty white on posterior
Process (Fig. H). Colour white, slightly opalescent, dirty white on posterior segments. Cuticle covered by minute papillae, specifically on segments seven and eight and the segments near ventrocaudal shield. Physique as much as 29 mm lengthy, mm wide, 30 segments.Kelly Sendall Sergio I. PubMed ID:https://www.ncbi.nlm.nih.gov/pubmed/18686015 SalazarVallejo ZooKeys 286: 4 (203)Prostomium hemispherical, opalescent, light yellow in colour. Peristomium rounded, raised at position of mouth and without papillae. Mouth oval, covered by minute papillae, extends from edge of second segment halfway to the border of prostomium. First three chaetigers with about 05 bronze, broadly separated, slightly falcate introvert hooks, each and every with subdistal, narrow dark regions. Genital papillae protrude ventrally from intersegmental groove among segments 7 and eight (Fig. I). Preshield area with 7 segments, sometimes with row of small, short fascicles of fine capillary chaetae, barely protruding from physique wall laterally. Ventrocaudal shield surface virtually flat. Shield surface faintly ribbed with one bigger oblique rib; suture indistinct, barely defined anteriorly, poorly defined GS 4059 hydrochloride site posteriorly (Fig. I); larger syntype with faint concentric lines, smaller person with a lot more distinct concentric lines. Anterior margins rounded; anterior depression deep; anterior keels not exposed. Lateral margins straight, barely expanded posteriorly. Fan truncate, margin crenulated, with shallow median notch. Marginal chaetal fascicles consist of ten lateral ones, and six posterior fascicles; all chaetae broken on both syntypes, except for initial two lateral fascicles. Peg chaetae present as stubs. Further chaetae damaged. Branchiae lost; branchial plates visible, oriented close to parallel with respect to each other. Remarks. Selenka (885) indicated a shallow furrow operating along the middle on the ventral surface, dividing each half into a bigger anterior triangle in addition to a smaller posterior triangle. Despite the fact that he did not indicate this especially, he was likely referring towards the anterolateral and posterior portions from the shield. He also counted 40 tufts of chaetae along the margins of the shield. If the secondary groups of chaetae, including the delicate fascicles at the posterolateral edges are incorporated, there are nonetheless only 34. Mainly because a single syntype is quite significant, and chaetal fascicles might be irregularly broken, he may possibly have inadvertently counted some of your fascicles more than after. You can find 5 species having shields with straight posterior margins: S. princeps, S. rietschi, S. spinosa, S. thalassemoides and S. thorsoni sp. n. Sternaspis princeps is most equivalent to S. thalassemoides for the reason that each have deep anterior depressions and rounded anterior margins. Even so, they differ simply because in S. princeps only the larger, radial rib is a lot more or much less visible, but concentric lines usually are not, whereas in S. thalassemoides the shield has radial ribs and concentric lines. An additional difference is that in S. princeps the shield anterior keels are exposed whereas they may be covered in S. thalassemoides. Distribution. Only known from the kind locality, off North Island, New Zealand, about 274 m depth. Sternaspis rietschi Caullery, 944 http:speciesid.netwikiSternaspis_rietschi Figure 2 Sternaspis rietschi Caullery, 944:680, fig. 54a ; Bleeker and van der Spoel 992:59.Revision of Sternaspis Otto, 82 (Polychaeta, Sternaspidae)Sort material. Indonesia. Holotype (ZMA 500), west of Wokam Island, 56’S, 340’E, 788 m, 899900, Stn. 27. Description. Holotype (ZMA 500) dam.