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FIGURE 7 in Redescription of two species and five new species of Dispio Hartman, 1951 (Spionidae: Polychaeta) from the eastern Pacific Coast and Caribbean Sea, with a review of the genus

FIGURE 7. Dispio longibranchiata sp. nov. Holotype (LACM AHF POLY 6237: A, F, H–J; paratype LACM AHF POLY 6237/1: B–E, G, K–T): (A) anterior region, dorsal view; (B) anterior region with palps, dorso-lateral view paratype; (C) notopodium of anterior chaetigers; (D) posterior region, dorso-lateral view; (E) parapodium of chaetiger 7; (F) parapodium of middle chaetiger; (G) posterior postchaetal lamellae and chaeta; (H) anterior region, lateral view; (I) parapodium of chaetigers 5–12; (J) parapodium of middle chaetigers; (K) neuropodium of chaetiger 49 with unidentate hooded hooks and sabre chaetae; (L) parapodium of posterior chaetigers; (M) anterior notopodial chaeta of dorsal tuft; (N) anterior notopodial chaeta of anterior row; (O) anterior notopodial chaeta of posterior row; (P) middle notopodial chaeta of anterior row; (Q) posterior notopodial chaeta of dorsal tuft; (R) anterior neuropodial chaeta of anterior row; (S) anterior neuropodial chaeta of posterior row; (T) anterior chaeta in position of sabre chaeta. CBC= C-shaped double band of cilia. Scale bars: A, C, D, F, H–J, L 1.0 mm; B 1.5 mm; E, G, K M–T 0.05 mm.

FIGURE 4 in Redescription of two species and five new species of Dispio Hartman, 1951 (Spionidae: Polychaeta) from the eastern Pacific Coast and Caribbean Sea, with a review of the genus

FIGURE 4. Dispio anauncinata sp. nov. Holotype (LACM-AHF POLY -6242: A, C–X; paratype LACM-AHF POLY -6239: B): (A) anterior region, dorsal view; (B) anterior region with palps, dorso-lateral view; (C) parapodium of anterior chaetigers; (D) parapodium of posterior chaetigers; (E) anterior region, dorso-lateral view; (F) notopodium of chaetigers 2–6; (G) parapodium of chaetiger 5; (H) parapodium of chaetiger 44; (I) parapodium of chaetiger 83; (J) parapodium of posterior chaetigers; (K) anterior region, dorsal view; (L) anterior region, dorsal view; (M) parapodium of chaetiger 102; (N) dorsal tuft notopodial chaeta of anterior chaetigers; (O, O') anterior notopodial chaeta of anterior row; (P) anterior notopodial chaeta of posterior row; (Q) posterior notopodial chaeta of dorsal tuft; (R) anterior neuropodial chaeta of anterior row; (S) anterior neuropodial chaeta of posterior row; (T) anterior chaeta of ventral tuft; (U) sabre chaeta of chaetiger 44; (V) unidentate neuropodial hooded hook; (V') bidentate neuropodial hooded hook; (W) posterior neuropodial chaeta of posterior row; (X) pygidium, dorso-lateral view. Br= Branchiae, CBC= C-shaped double band of cilia. Scale bars: A, L 1.5 mm; B, C–F, J, K, X 1.0 mm; G–H, M 0.05 mm; I, U–W 0.025 mm; N–S 0.005 mm; T 0.0025 mm.

FIGURE 3. Dispio mororoi Gibbs, 1971 in Redescription of two species and five new species of Dispio Hartman, 1951 (Spionidae: Polychaeta) from the eastern Pacific Coast and Caribbean Sea, with a review of the genus

FIGURE 3. Dispio mororoi Gibbs, 1971. Holotype (BMNH-1970.53: A–J; paratype BMNH-1970.54: K–P): (A) anterior region, lateral view right; (B) anterior region, lateral view left; (C) middle region, dorsal view; (D) parapodium of anterior chaetigers; (E) notopodium of middle chaetigers; (F) parapodium of middle chaetigers; (G) neuropodium of anterior chaetigers; (H) parapodium of chaetigers 10–14; (I) parapodium of chaetigers 30–35; (J) notopodium of posterior chaetigers with accessory branchiae; (K) anterior notopodial chaeta of posterior row; (L) anterior notopodial chaeta of anterior row; (M) middle notopodial chaeta of posterior row; (N) hooded hook; (O) neuropodial chaeta of posterior chaetiger; (P) sabre chaetae. CBC= C-shaped double band of cilia. Scale bars: A–I 0.5 mm; mm; J 0.25 mm; K–P 0.03 mm.

FIGURE 8 in Redescription of two species and five new species of Dispio Hartman, 1951 (Spionidae: Polychaeta) from the eastern Pacific Coast and Caribbean Sea, with a review of the genus

FIGURE 8. Dispio panamensis sp. nov. Holotype (LACM-AHF POLY -6233; A, B, D–Z; paratype LACM-AHF POLY -6233/ 1): C): (A) anterior region, dorsal view; (B) anterior region, lateral view; (C) anterior region, dorsal view; (D) parapodium of chaetiger 3; (E) parapodium of chaetigers 1–6; (F) parapodium of chaetigers 7–14; (G) parapodium of chaetiger 32; (H) parapodium of chaetigers 27–31; (I) parapodium of chaetiger 38; (J) parapodium of posterior chaetiger; (K) middle segment, dorsal view; (L) notopodial chaeta of anterior row on chaetiger 1; (M) notopodial chaeta of anterior row on chaetiger 2; (N) notopodial chaeta of anterior row on chaetiger 7; (O) notopodial chaeta of posterior row on chaetiger 32; (P) posterior notopodial chaeta of anterior row; (Q) posterior notopodial chaeta of posterior row; (R) dorsal tuft chaetae of notopodial chaeta on posterior chaetiger; (S) anterior neuropodial chaeta of anterior row; (T) anterior neuropodial chaeta of posterior row; (U) ventral chaeta located in the position of the sabre chaeta of anterior chaetiger; (V, V') anterior neuropodial chaeta of anterior row (dorsal position, ventral position); (W) sabre chaeta of chaetiger 32; (X) neuropodial hooded hook; (Y) neuropodial chaeta of posterior row on chaetiger 32; (Z) posterior neuropodial chaeta. CBC= C-shaped double band of cilia. Scale bars: A–H 1.0 mm; I–J 0.2 mm; K–M 0.5 mm; N–R, V–Z 0.01 mm; S–U 0.005 mm.

FIGURE 2. Dispio uncinata Hartman, 1951 in Redescription of two species and five new species of Dispio Hartman, 1951 (Spionidae: Polychaeta) from the eastern Pacific Coast and Caribbean Sea, with a review of the genus

FIGURE 2. Dispio uncinata Hartman, 1951. Holotype (LACM-AHF POLY 0634: A–C, E, H; paratype LACM-AHF POLY 0635: D, F, G, I–X): (A) anterior region, dorsal view; (B) anterior region, lateral view; (C) anterior region, lateral view; (D) parapodium of chaetiger 1; (E) anterior region, lateral view; (F) parapodium of chaetiger 10; (G) parapodium of posterior chaetiger; (H) prostomium, dorsal view; (I) anterior notopodial chaeta of anterior row; (J) anterior notopodial chaeta of posterior row; (K) dorsal tuft chaetae of chaetiger 2; (L) dorsal tuft chaetae of chaetiger 7; (M) notopodial chaeta of chaetiger 7; (N) posterior chaeta of tuft from posterior fragment; (O) notopodial chaeta of posterior chaetiger; (P) notopodial chaeta of posterior chaetiger; (Q) anterior neuropodial chaeta; (R) anterior neuropodial chaeta; (S) anterior neuropodial chaeta; (T) sabre chaeta of chaetiger 11; (U) sabre chaeta of posterior chaetiger; (V) neuropodial hooded hook; (W) neuropodial chaeta; (X) neuropodial hooded hook. Lateral lobes (Ll), dorsal tuft (dt), ventral fascicle (vf). Scale bars: A, B, C, E, F–G, H, Q–T, V–X 0.005 mm; D 0.5 mm; I–L, M–P, U 0.001 mm.

FIGURE 5 in Redescription of two species and five new species of Dispio Hartman, 1951 (Spionidae: Polychaeta) from the eastern Pacific Coast and Caribbean Sea, with a review of the genus

FIGURE 5. Dispio bescanzae sp. nov. Holotype (Ecosur- 0178: B-C; paratype (Ecosur- 0179: A, D-Z): (A) anterior region, dorsal view, (B); anterior region, dorsal view; (C) same, lateral view; (D) parapodium of chaetiger 1, anterior view; (E) parapodium of chaetiger 2, anterior view; (F) parapodium of chaetiger 3, anterior view; (G); parapodium of chaetiger 7, anterior view (H) parapodium of chaetiger 35, anterior view; (I) parapodium of chaetiger 58, anterior view; (J) parapodium of chaetiger 90, anterior view; (K) mid-anterior segments, dorsal view; (L) lateral organs from middle chaetigers; (M) accessory branchiae; (N) notopodial chaetae from anterior row of chaetiger 1; (O) notopodial chaetae from ventral fascicle of chaetiger 1, anterior row; (P) notopodial chaetae from ventral fascicle of chaetiger 1, posterior row; (Q) notopodial chaetae from anterior row of chaetiger 2 and subsequent chaetigers; (R) notopodial chaetae from posterior row of chaetiger 2 and subsequent chaetigers; (S) uppermost notopodial chaetae from subsequent chaetigers; (T) lower notopodial chaetae from subsequent chaetigers; (U) notopodial chaetae from anterior row; (V) neuropodial chaetae from posterior row; (W) sabre chaetae; (X) unidentate neuropodial hooded hooks; (Y) neurochaetae bundle from chaetiger 20; (Z) pygidium, dorsal view. Lateral organ (LO). Scale bars: A, B, C, J, Z 0.5 mm; D–I 0.5 mm; K 0.5 mm; L 0.05; M–W 0.045 mm; Y 0.05 mm.

FIGURE 6 in Redescription of two species and five new species of Dispio Hartman, 1951 (Spionidae: Polychaeta) from the eastern Pacific Coast and Caribbean Sea, with a review of the genus

FIGURE 6. Dispio lenislamellata sp. nov. Holotype (LACM-AHF POLY- 6238: B-Z; paratype (LACM-AHF POLY- 6238/1: A): (A) anterior region, dorso-lateral view; (B) anterior region, lateral view; (C) notopodium of chaetigers 1–3; (D) notopodium of chaetigers 8; (E) notopodium of chaetiger 27; (F) notopodium of chaetigers 25–33; (G) parapodium of chaetiger 75; (H) middle segment, dorsal view; (I) middle segment, lateral view; (J) neuropodium of chaetigers 1–2; (K) neuropodium of chaetiger 5; (L) neuropodium of chaetiger 22; (M) notopodial lamellae and branchiae, dorsal view and accessory branchiae; (N) dorsal tuft notopodial chaeta of chaetiger 1; (O) anterior notopodial chaeta of anterior row; (P) anterior notopodial chaeta of posterior row; (Q) dorsal tuft notopodial chaeta of chaetiger 4; (R) middle notopodial chaeta of anterior row; (S) dorsal tuft chaetae of notopodial chaeta of posterior chaetiger; (T) anterior neuropodial chaeta of anterior row; (U) anterior neuropodial chaeta of posterior row; (V) ventral chaeta located in the position of a sabre chaeta of anterior chaetiger; (W) sabre chaeta of chaetiger 27; (X) unidentate neuropodial hooded hook; (Y) bidentate neuropodial hooded hook; (Z) pygidium, lateral view. N1= Notolamellae of chaetiger 1, N2= Notolamellae of chaetiger 2, N3= Notolamellae of chaetiger 3, CBC= C-shaped double band of cilia. LO= Lateral organ. Scale bars: A, F, H, I, M, Z 0.5 mm; B 1.0 mm; C–E, Q, S 0.005 mm; G 5 0.05 mm; J–L, V 0.0025; N 0.01 mm; O–P, R, T, U, W 0.025 mm; X, Y 0.0125 mm.

FIGURE 15 in New records and description of four new species of spionids (Annelida: Polychaeta: Spionidae) from the Philippines: the genera Dispio, Malacoceros, Polydora, and Scolelepis, with notes on palp ciliation patterns of the genus Scolelepis

FIGURE 15. Scolelepis magnicornuta sp. n. A–H, paratypes (USNM 1096810) SEM micrographs. A, anterior end, lateral view; B, anterior end, lateral view (palps missing); C, anterior end, dorsal view; D, occipital tentacle (arrowhead shows cilia on side of tentacle); E, middle region of palp, frontal view (arrowhead indicates faint division in transverse rows of cilia; short rows top, long rows bottom); F, setigers 10–15 (right to left), lateral view; G, setigers 30–33 (right to left), lateral view (arrowhead indicates lateral organ); H, pygidium, dorsal view. Scale bars: A–C = 500 µm; D = 100 µm; E = 50 µm; F–H = 250 µm.

FIGURE 13. Scolelepis hutchingsae A–E in New records and description of four new species of spionids (Annelida: Polychaeta: Spionidae) from the Philippines: the genera Dispio, Malacoceros, Polydora, and Scolelepis, with notes on palp ciliation patterns of the genus Scolelepis

FIGURE 13. Scolelepis hutchingsae A–E, voucher specimens (USNM 1096812) SEM micrographs. A, setigers 2–4 (left to right), lateral view (arrowhead indicates lateral organ); B, setigers 13–21 (right to left), lateral view (arrowhead indicates lateral organ); C, setiger 20 neuropodial hooded hooks; D, posterior setigers and pygidium, dorsal view; E, posterior setigers and pygidium, lateral view. Scale bars: A, D = 100 µm; B = 250 µm; C = 25 µm; E = 250 µm.

FIGURE 12. Scolelepis hutchingsae A–G in New records and description of four new species of spionids (Annelida: Polychaeta: Spionidae) from the Philippines: the genera Dispio, Malacoceros, Polydora, and Scolelepis, with notes on palp ciliation patterns of the genus Scolelepis

FIGURE 12. Scolelepis hutchingsae A–G, voucher specimens (USNM 1096812) SEM micrographs. A, anterior end, lateral view (palp missing on right side); B, anterior end, dorsal view; C, anterior end, oblique en-face view; D, anterior end, lateral view; E, caruncle and nuchal organ (base of palp at top, arrowhead indicates patches of cilia on palp base shown in F); F, base of palp with patches of cilia; G, lateral view of palp; H, middle region of palp, oblique frontal view (arrowheads show two short ciliary rows on elevated lobes). Scale bars: A–B, D = 250 µm; C = 125 µm; E = 50 µm; F = 25 µm; G = 100 µm; H = 20 µm.

FIGURE 17 in New records and description of four new species of spionids (Annelida: Polychaeta: Spionidae) from the Philippines: the genera Dispio, Malacoceros, Polydora, and Scolelepis, with notes on palp ciliation patterns of the genus Scolelepis

FIGURE 17. Scolelepis villosivaina sp. n. A–I, paratypes (USNM 1096815) SEM micrographs. A, anterior end, lateral view; B, anterior end, lateral view (palps missing); C, anterior end, oblique dorsal view; D, anterior end, dorsal view (palps missing); E, base of palp showing sheath (arrow indicates beginning of ciliary rows; arrowhead indicates groups of cilia on palp sheath); F, middle region of palp, frontal view; inset shows part of a single transverse ciliary row (N indicates neck of gland cells, C indicates cilia); G, setiger 8–10 (right to left), lateral view; H, setiger 33–36 (left to right), lateral view; I, bacterial cells attached to setiger 1 (same specimen as shown in A). Scale bars: A–D, H = 500 µm; E = 100 µm; F = 50 µm; G = 250 µm; I = 10 µm.

FIGURE 10 in New records and description of four new species of spionids (Annelida: Polychaeta: Spionidae) from the Philippines: the genera Dispio, Malacoceros, Polydora, and Scolelepis, with notes on palp ciliation patterns of the genus Scolelepis

FIGURE 10. Scolelepis alisonae sp. n. A–D, paratypes (USNM 1096806) SEM micrographs. A, proximal region of palp, frontal view (arrowhead indicates faint division in transverse rows of cilia; short rows top, long rows bottom; note that at point of arrowhead there are two long rows below and only one short row above); B, distal tip of palp, frontal view; C, setiger 68, oblique dorsolateral view; D, posterior setigers and pygidium, dorsal view. Scale bars: A–B = 25 µm; C = 100 µm; D = 250 µm.

FIGURE 9 in New records and description of four new species of spionids (Annelida: Polychaeta: Spionidae) from the Philippines: the genera Dispio, Malacoceros, Polydora, and Scolelepis, with notes on palp ciliation patterns of the genus Scolelepis

FIGURE 9. Scolelepis alisonae sp. n. A–H, paratypes (USNM 1096806) SEM micrographs. A, anterior end, oblique lateral view (palps missing); B, anterior end, dorsal view; C, anterior end, lateral view; D, setiger 1 and base of palp, lateral view; E, tips of neurosetae from setiger 3; F, setiger 2, lateral view; G, setiger 19 & 20 (left to right), lateral view (arrowheads indicate lateral organs); H, setigers 49–51 (top to bottom), lateral view. Scale bars: A–C = 250 µm; D = 100 µm; E–H = 200 µm.

FIGURE 7. Malacoceros indicus. A–E in New records and description of four new species of spionids (Annelida: Polychaeta: Spionidae) from the Philippines: the genera Dispio, Malacoceros, Polydora, and Scolelepis, with notes on palp ciliation patterns of the genus Scolelepis

FIGURE 7. Malacoceros indicus. A–E, voucher specimens (USNM 1096801); F–G (USNM 1096800) SEM micrographs. A, anterior end, oblique lateral view (arrowhead indicates 2 bulbous lobes of proboscis); B, anterior end, dorsal view; C, neuropodium of setiger 10 (arrowhead indicates lateral organ); D, sabre setae of setiger 10; E, neuropodium of setiger 72 (arrowhead indicates nipple-like projection); F, setigers 20–24 (right to left), lateral view; G, posterior setigers and pygidium, lateral view. Scale bars: A–B = 500 µm; C = 5µm; D–E = 50 µm; F = 500 µm; G = 1 mm.

FIGURE 3. Polydora cavitensis. A–D in New records and description of four new species of spionids (Annelida: Polychaeta: Spionidae) from the Philippines: the genera Dispio, Malacoceros, Polydora, and Scolelepis, with notes on palp ciliation patterns of the genus Scolelepis

FIGURE 3. Polydora cavitensis. A–D, voucher specimen (USNM 1096803) SEM micrographs. A, anterior end, dorsal view; B, anterior end, lateral view (occipital tentacle indicated by arrowhead); C, setigers 1–4 (left to right), lateral view (lateral organs indicated by arrowheads); D, major spines of setiger 5, lateral view. Scale bars: A–B = 250 µm; C = 50 µm; D = 10 µm.

FIGURE 5 in New records and description of four new species of spionids (Annelida: Polychaeta: Spionidae) from the Philippines: the genera Dispio, Malacoceros, Polydora, and Scolelepis, with notes on palp ciliation patterns of the genus Scolelepis

FIGURE 5. Dispio latilamella sp. n. A–H, paratype (USNM 1096796) SEM micrographs. A, anterior end, lateral view (arrowhead shows papillae on prostomium); B, anterior end, lateral view (opposite side of specimen in A, palp missing); inset shows spinelets on notoseta of setiger 1; C, anterior end, dorsal view; D, setiger 1 notopodia; E, proximal to middle region of palp, frontal view (arrowhead indicates a transverse row of cilia on one side of ventral ciliated groove); F, setigers 10–14 (left to right), lateral view; G, setigers 18–20 (left to right), lateral view (first accessory branchiae on setiger 19 shown by arrowhead; horizontal arrow indicates lateral organ); H, setiger 30–33 (right to left), lateral view. Scale bars: A–C = 500 µm; D = 100 µm; E = 50 µm; F–H = 250 µm; inset of B = 2.5 µm.

FIGURE 6. Malacoceros indicus. A–E, G–H in New records and description of four new species of spionids (Annelida: Polychaeta: Spionidae) from the Philippines: the genera Dispio, Malacoceros, Polydora, and Scolelepis, with notes on palp ciliation patterns of the genus Scolelepis

FIGURE 6. Malacoceros indicus. A–E, G–H, voucher specimens (USNM 1096799); F (ZRC 2006.0221). A, anterior end, dorsal view; B, anterior end, lateral view; C, setiger 1, anterior lateral view; D, setiger 2, anterior lateral view; E, setiger 19, lateral view (posterior end to left); F, setiger 79, anterior lateral view; G, hooded hook from posterior setiger; H, posterior setigers and pygidium, lateral view. Scale bars: A–B = 250 µm; C–F = 100 µm; G = 10 µm; H = 125 µm.

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FIGURE 3 in Two new species of spionids from the genera Dispio and Prionospio (Polychaeta Spionidae) from the Iberian Peninsula with redescription and notes on Prionospio (Minuspio) multibranchiata Berkeley, 1927

FIGURE 3. Prionospio (Minuspio) sanmartini sp. nov.: A) anterior end, dorsal view (holotype MNCN 16.01/18446); B) anterior end, lateral view (holotype MNCN 16.01/18446); C) prostomium, peristomium and chaetiger 1, lateral view; D) chaetiger 3, anterior view; E) chaetiger 4, anterior view; F) chaetiger 9, anterior view; G) chaetiger 12, anterior view; H) chaetiger 16, anterior view; I) anterior row notochaeta on anterior chaetiger; J) posterior row notochaeta on anterior chaetiger; K) anterior row notochaeta on mid-chaetiger; L) posterior row notochaeta on mid-chaetiger; M) notochaeta from posterior chaetigers; N) sabre chaeta; O) neuropodial hooded hook; P) alimbate capillary companion chaeta; Q) notopodial hooded hook. Scale bars: A, B: 0.4 mm; C–H: 0.3 mm; I–N, O–Q: 0.01 mm.

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FIGURE 1 in Two new species of spionids from the genera Dispio and Prionospio (Polychaeta Spionidae) from the Iberian Peninsula with redescription and notes on Prionospio (Minuspio) multibranchiata Berkeley, 1927

FIGURE 1. Dispio glandulosa sp. nov: A) anterior end, dorsal view (holotype MNCN 16.01/6033), with diagrammatic view of O-shape dorsal organs; B) anterior end, lateral view (holotype MNCN 16.01/6033); C) chaetiger 1, anterior view; D–E) chaetigers 2 and 3, respectively, anterior view; F–G) chaetigers 24 and 26 respectively, anterior view; H) chaetiger 29, anterior view; I–J) chaetigers 48 and 50 respectively, anterior view; K) unilimbate capillary notochaeta from anterior row on chaetiger 1; L) smooth, unilimbate capillary notochaeta from posterior row on chaetiger 1; M) anterior row unilimbate capillary notochaeta from chaetiger 12; N) posterior row striated, long, unilimbate capillary notochaeta from chaetiger 12; O) granulated, reticulated, unilimbate capillary notochaeta from posterior notopodium; P) anterior row short, reticulated, granulated, unilimbate capillary neurochaeta from anterior chaetigers; Q) posterior row smooth, unilimbate capillary from anterior chaetigers; R) ventral tuft neurochaeta; S) ventral tuft reticulated, unilimbated neurochaeta from chaetiger 13; T) unidentate neuropodial hooded hooks; U) slender, short, smooth, alimbate capillary companion chaeta; V) posterior row: granulated, reticulated, unilimbate capillary chaeta; W) granulated, reticulated, alimbate ventral tuft chaeta. O-sDo: O-shape dorsal organ. Scale bars: A: 2 mm; B: 1 mm; C–J: 0.5 mm; K–W: 0.02 mm.