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FIGURE 1 in A new species of Marphysa (Annelida: Eunicida: Eunicidae) from India, with notes on previously described or reported species from the region

FIGURE 1. Sampling sites of Marphysa madrasi n. sp. in Ennore Creek (Bay of Bengal, India). The Kosasthalaiyar River has three branches, one enters Pulicat Lake and one enters Ennore Creek and all drain into the Bay of Bengal.

FIGURE 3. Marphysa madrasi n in A new species of Marphysa (Annelida: Eunicida: Eunicidae) from India, with notes on previously described or reported species from the region

FIGURE 3. Marphysa madrasi n. sp., holotype NL-ENNORE_01 ZSI A. Chaetiger 5, right side anterior view. B. Chaetiger 45, right side anterior view. C. Chaetiger 130, right side anterior view. D. Chaetiger 300, right side anterior view. E. Acicula from chaetiger 100. F. Chaetiger 150, anterior view. Scale bars: A–D= 0.5 mm; E–F = 50 µm. Abbreviation: SA, subacicular hook.

FIGURE 5. Marphysa madrasi n in A new species of Marphysa (Annelida: Eunicida: Eunicidae) from India, with notes on previously described or reported species from the region

FIGURE 5. Marphysa madrasi n. sp., holotype NL-ENNORE_01 ZSI (B, C, F), paratype ZSI XXX (A, B, E) A. Limbate chaetae (chaetiger 60). B. Compound spinigers (chaetiger 83). C. Pectinate chaetae (chaetiger 81). D. Pectinate chaetae (chaetiger 315). E. Pectinate chaetae (far posterior chaetiger). F. Subacicular hook (chaetiger 81). Scale bars: C = 10 µm, D = 20 µm, F = 30 µm. Type 1 and 2 refer to the different types of pectinate chaetae.

FIGURE 2. Marphysa madrasi n in A new species of Marphysa (Annelida: Eunicida: Eunicidae) from India, with notes on previously described or reported species from the region

FIGURE 2. Marphysa madrasi n. sp., holotype NL-ENNORE_01 ZSI A. Anterior part, dorsal view. B. Anterior part, lateroventral view. C. Parapodia from mid-body, dorso-lateral view. D. Pygidium and last few abranchiate chaetigers, dorsal view. Scale bars: A, D =125 µm, B = 65 µm, C = 2 mm

FIGURE 6 in A new species of Marphysa (Annelida: Eunicida: Eunicidae) from India, with notes on previously described or reported species from the region

FIGURE 6. Marphysa mossambica (Peters, 1854), specimen 4005-Berlin. A. general view of chaetiger 2. B. Pectinate chaetae from chaetiger 32. C. Pectinate chaetae from chaetiger 160. D. Pectinate chaetae from chaetiger 224. Scale bars: A = 100 µm, B = 20 µm, C, D = 10 µm.

FIGURE 4. Marphysa madrasi n in A new species of Marphysa (Annelida: Eunicida: Eunicidae) from India, with notes on previously described or reported species from the region

FIGURE 4. Marphysa madrasi n. sp., paratype ZSI. A. Maxilla, dorsal view. B. Mandibles, dorsal view (left one broken). Scale bars: 0.5 mm.

FIGURE 7 in A new species of Marphysa (Annelida: Eunicida: Eunicidae) from India, with notes on previously described or reported species from the region

FIGURE 7. Majority-rule consensus tree of Marphysa species from Bayesian analysis using COI. Asterisk indicates posterior probability> 90%. Text in red indicates specimens used in this study.

FIGURE 6 in A new species of Eunice Cuvier, 1817 (Polychaeta: Eunicidae) from the slope of the Desventuradas Islands and seamounts of the Nazca Ridge, southeastern Pacific Ocean

FIGURE 6. Different habitats (S22, SF9 and SFX) for Eunice decolorhami n. sp. a) habitat at S22 with predominance of fine sand; b, c) bottom at SF9 and SFX, dominated by coarse calcareous sediments produced by foraminiferous tests, debris of deepsea corals, holopelagic gastropod shells and rhodoliths, with scattered rocky outcrops.

FIGURE 1 in A new species of Eunice Cuvier, 1817 (Polychaeta: Eunicidae) from the slope of the Desventuradas Islands and seamounts of the Nazca Ridge, southeastern Pacific Ocean

FIGURE 1. Location of the stations sampled between 22 October and 1 November 2016 in the CIMAR 22 cruise. Red triangles represent the collection points of the material examined. (Credits: Ariadna Mecho (ESMOI)).

FIGURE 4. Eunice decolorhami n in A new species of Eunice Cuvier, 1817 (Polychaeta: Eunicidae) from the slope of the Desventuradas Islands and seamounts of the Nazca Ridge, southeastern Pacific Ocean

FIGURE 4. Eunice decolorhami n. sp.: a) anterior end, lateral view (paratype SCBUCN 6856); b) chaetiger 3, anterior view (AV); c) chaetiger 8, AV; d) chaetiger 36, AV (paratype); e) chaetiger 48, AV; f) posterior chaetiger, near posterior end, PV; g) limbate chaeta; h) pectinate chaeta; i) falciger chaeta; j) aciculum; k, l) anterior hooded hooks; m) middle hooded hook; n) posterior hooded hook; o) maxillary complex.

FIGURE 2. Eunice decolohami n in A new species of Eunice Cuvier, 1817 (Polychaeta: Eunicidae) from the slope of the Desventuradas Islands and seamounts of the Nazca Ridge, southeastern Pacific Ocean

FIGURE 2. Eunice decolohami n. sp.: a) anterior end, dorsal view (paratype MNHNCL ANN-15036); b) same, ventral view; c) anterior end, lateral view (holotype); d) chaetigers 7–8 (holotype); e) chaetiger 15, posterior view (paratype MNHNCL ANN- 15036); f) chaetiger 36, anterior view (paratype MNHNCL ANN-15036); g) chaetiger 80, anterior view (paratype MNHNCL ANN-15036); h) falciger chaeta; i) pectinate chaeta; j) subacicular hooded hook, lateral view; j´) same, frontal view; k) pygidium, dorsal view (paratype MNHNCL ANN-15036).

FIGURE 4. A, B in A new species of Marphysa Quatrefages, 1865 (Polychaeta: Eunicida: Eunicidae) from northern Australia and a review of similar taxa from the Indo-west Pacific, including the genus Nauphanta Kinberg, 1865

FIGURE 4. A, B. Relationships between body size (maximum body width including parapodia, mm) and A, the first chaetiger with branchiae; and B, first chaetiger with subacicular hooks, in specimens of M. mossambica from northern Australia n = 13), the lectotype of M. mossambica (n = 1) and the holotype of M. novaehollandiae (n = 1) (data for types from Fauchald (1987)). Regression equations and coefficients are for all data points (n = 15).

FIGURE 3. A−F. Marphysa fauchaldi n in A new species of Marphysa Quatrefages, 1865 (Polychaeta: Eunicida: Eunicidae) from northern Australia and a review of similar taxa from the Indo-west Pacific, including the genus Nauphanta Kinberg, 1865

FIGURE 3. A−F. Marphysa fauchaldi n. sp., all SEM images of paratype, AM W35419, except F, light microscopic image of non-type NTM W23042: A, limbate capillaries and compound spinigers (cs) of ventral bundle chaetiger 8; B, limbate capillaries (li), compound spinigers and pectinates (pe) of dorsal (upper) and ventral bundles, chaetiger 20; C, limbate capillaries (li), pectinates (pe) and subacicular hook (sh) of dorsal (upper) and ventral bundles, chaetiger 264; D, compound spinigers, chaetiger 8; E, subacicular hook, chaetiger 98; F, subacicular hook, mid-body parapodia; G, pectinate chaetae, chaetiger 13; H, pectinate chaeta, chaetiger 21; I, pectinate chaetae, chaetiger 281. Scales: A, B, C, I, 20 μm; E, F, G, H 10 μm; D, 5 μm.

FIGURE 2. A−H, Marphysa fauchaldi n in A new species of Marphysa Quatrefages, 1865 (Polychaeta: Eunicida: Eunicidae) from northern Australia and a review of similar taxa from the Indo-west Pacific, including the genus Nauphanta Kinberg, 1865

FIGURE 2. A−H, Marphysa fauchaldi n. sp., holotype (NTM W23040), parapodia, left side, anterior views, DIC imagery, A, chaetiger 3; B, chaetiger 10; C, chaetiger 20; D, chaetiger 30; E, chaetiger 41; F, chaetiger 60; G, 24 chaetigers from pygidium; H, 12 chaetigers from pygidium, n = notoaciculae. Scale: A−H, 0.2 mm.

FIGURE 1. A−C. Marphysa fauchaldi n in A new species of Marphysa Quatrefages, 1865 (Polychaeta: Eunicida: Eunicidae) from northern Australia and a review of similar taxa from the Indo-west Pacific, including the genus Nauphanta Kinberg, 1865

FIGURE 1. A−C. Marphysa fauchaldi n. sp., anterior end, A, holotype (NTM W23040), dorsal view; note palps damaged; B, holotype, ventral view; note palps damaged; C, Paratype (NTM W23042), lateral view. Scale: A−C, 1 mm.

FIGURE 4 in Redescriptions of Eunice filamentosa and E. denticulata and description of E. tovarae n. sp. (Polychaeta: Eunicidae), highlighted with morphological and molecular data

FIGURE 4. Simplified neighbour-joining tree of COI sequences included in this study using K2P distances.

FIGURE 3. Eunice tovarae n in Redescriptions of Eunice filamentosa and E. denticulata and description of E. tovarae n. sp. (Polychaeta: Eunicidae), highlighted with morphological and molecular data

FIGURE 3. Eunice tovarae n. sp. A. Anterior end, dorsal view; B. Chaetiger 3, frontal view; C. Chaetiger 17, frontal view; D. Chaetiger 118, frontal view; E. Chaetiger 231, frontal view; F. Maxillae III and IV, ventral view; G. Compound falciger, chaetiger 3; H. Compound falciger, chaetiger 215; J. Acicula, chaetiger 17; K. Acicula, chaetiger 118; L. Acicula, chaetiger 231; M. Subacicular hook, chaetiger 84. A–E, G–M. from holotype ECOSUR-104; F. from paratype ECOSUR-105. Scale bars: A, 1.0 mm; B, C, E, 0.11 mm; D, 0.22 mm; F, 1.3 mm; G, H, 0.01 mm; J, K, L, 0.02 mm; M, 0.03 mm.

FIGURE 2. Eunice denticulata. A in Redescriptions of Eunice filamentosa and E. denticulata and description of E. tovarae n. sp. (Polychaeta: Eunicidae), highlighted with morphological and molecular data

FIGURE 2. Eunice denticulata. A. Anterior end, dorsal view; B. Chaetiger 3, frontal view; C. Chaetiger 17, frontal view; D. Chaetiger 134, frontal view; E. Chaetiger 384, frontal view; F. Compound falciger, chaetiger 3; G. Compound falciger, chaetiger 267; H. Subacicular hook, chaetiger 267; J. Acicula, chaetiger 17; K. Acicula, chaetiger 134; L. Maxillae III and IV, ventral view. A, D, F. from syntype of E. conglomerans ZMB6730; B, C, E, G–L. from specimen UMML P-1283. Scale bars: A, 0.4 cm; B, C, D, 2.0 mm; E, 1.4 mm; F, G, H, 0.01 mm; J, 0.02 mm; K, 0.025 mm; L, 0.2 mm.

FIGURE 1. Eunice filamentosa. A in Redescriptions of Eunice filamentosa and E. denticulata and description of E. tovarae n. sp. (Polychaeta: Eunicidae), highlighted with morphological and molecular data

FIGURE 1. Eunice filamentosa. A. Anterior end, dorsal view; B. Chaetiger 3, frontal view; C. Chaetiger 17, frontal view; D. Chaetiger 31, frontal view; E. Chaetiger 230, frontal view; F. Maxillae III and IV, ventral view; G. Compound falcigers, chaetiger 3; H. Compound falcigers, chaetiger 281; J. Subacicular hook, chaetiger 230; K. Acicula, chaetiger 17; L. Acicula, chaetiger 93; M. Acicula, chaetiger 281. A. from specimen ECOSUR-OH-562; B–M. from specimen ECOSUR-OH-158. Scale bars: A, 1.5 mm; B, C, E, 0.12 mm; D, F, 0.15 mm; G, H, 0.01 mm; J, K, L, M, 0.02 mm.