E specimen selected as neotype (ICZN 999, Art. 75.3.five). The proposed neotype was
E specimen selected as neotype (ICZN 999, Art. 75.three.five). The proposed neotype was collected in the type locality, Naples (ICZN 999,Revision of Sternaspis Otto, 82 (Polychaeta, Sternaspidae)Art. 75.three.6), and it has been deposited in the Zoological Museum of the Copenhagen University (ICZN 999, Art. 75.3.7). The shield of S. thalassemoides features a posterior margin straight, equal in posterior extension to posterolateral corners resembling S. princeps, S. rietschi, S. spinosa and S. 2’,3,4,4’-tetrahydroxy Chalcone web thorsoni sp. n.; however, S. spinosa can be separated in the other individuals because its shield is considerably wider than extended and by having its anterior keels exposed. Additional, S. thorsoni can be separated in the other folks by getting more abundant, strawcoloured, delicate introvert hooks, whereas the remaining species have fewer, thicker, darker hooks. Because there are actually no concentric lines in their shield, S. princeps could be distinguished from S. thalassemoides and S. rietschi. These two species differ simply because in S. thalassemoides the shield lateral margins are just about straight, not markedly expanded medially, whereas in S. rietschi they are rounded, markedly expanded medially. Sternaspis affinis Stimpson, 864, emended http:speciesid.netwikiSternaspis_affinis Figures B, two, five Sternaspis affinis Stimpson, 864:59; von Marenzeller 890:five, Pl. , fig. 7. Sternaspis fossor: Treadwell PubMed ID:https://www.ncbi.nlm.nih.gov/pubmed/10899433 94:25; Chamberlin 99:40506; Moore 923:two; Berkeley 930:69; Berkeley and Berkeley 94:9 (list), five; 952:590, fig. 23; Hartman 963:59, 969:3552, fig. ; Fauchald 972:23839 (partim); Bilyard and Carey 979: fig. 2, Tab. two, 980:22; Fauchald and Hancock 98:35 (non Stimpson 853). Sternaspis fossor: Moore 908:358. Sternaspis scutata: Hartman and Reish 950:38; Pettibone 954:3090, fig. 35 a, b (partim); Fauchald 077:three, fig. 33C, D; Hobson and Banse 98:eight, 9, 63, Tab. 3, fig. F (non Ranzani 87). Form material. Canada, British Columbia, Strait of Georgia. Neotype (RBCM 0053800), and five paraneotypes (RBCM 00538002), 490’47″N, 238’02″W, 80 m, 3III2003. More material. Canada, British Columbia. 2 spec. (LACM n2939), Departure Bay, mud and rocks, 8VII940, G.E. N. MacGinitie, coll. spec. (NHMW 565), Vancouver Island, 875. 34 spec. (RBCM 987254023), Vancouver Island, southwest of Cape Beale, 485’54″N, 258’24″W, 04 m, 23VII987. 7 spec. (RBCM 0024800), Vancouver Island, Trevor Channel, Helby Island, 480’00″N, 250’00″W, 9VI2002. spec. (RBCM 99648004), Vancouver Island, Nanoose Bay, 495’30″N, 248’30″W, 28 m, 4VI996. three spec. (RBCM 99924006), Vancouver Island, Saanich Inlet, 482’36″N, 23’00″W, 600 m, 6II987. 24 spec. (RBCM 9889032), Dixon Entrance, west of Dundas Island, 549’40″N, 3’0″W, 43 m, 23I988. 4 spec. (RBCM 990320043),Kelly Sendall Sergio I. SalazarVallejo ZooKeys 286: four (203)Vancouver Island, southwest of Nootka 
Sound, 495’4″N, 27’55″W, 00066 m, 3II990. U.S.A Alaska. two spec. (CAS 5054), Boca de Quadra Inlet, III98. 2 spec. (CAS 7805), Gulf of Alaska, Cook Inlet, 594’54″N, 50’24″W, 99 m, 22X976. 4 spec. (CAS 8987), Chukchi Sea, 675’N, 655’W, 33 m, IX907. 2 spec. (USNM 6342), Gulf of Alaska, 59’30″N, 426’50″W, 5300 m, VII976. Washington. 4 spec. (RBCM 98547400), west of Cape Flattery, 485’24″N, 254’00″W, 68 m, 8VI985. Oregon. 8 spec. (USNM 7497), mouth of Columbia River, 9 m, 5IX96. California. 20 spec. (ANSP 335), Monterey Bay, 66 m, 3V904. Mexico, Gulf of California. 2 spec. (SIO A838), Isla Angel de Ia Guarda, 56242 m, 8I968. 6 spec. (SIO A839), Isla Angel de Ia Guarda, 474 m, 8I968. Description. Neotype (RBCM 0.
