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FIGURE 1 in New species of the scale worm genus Pholoe (Polychaeta: Pholoidae) from southeast Brazil

FIGURE 1. Pholoe microantennata sp. nov. A. completed specimen without elytra, dorsal view; B, C. anterior region of body without elytra, dorsal view; D. prostomium, dorsal view; E, F. prostomium, dorsal view, with details of lateral antennae; G. right lateral antenna; H. anterior region, dorsal view. MA—median antenna, LA—lateral antenna, TC—tentacular cirrus, P— palp, VC—ventral cirrus, Pa—papillae.

FIGURE 4. Archeterokrohnia docrickettsae n in Archeterokrohnia docrickettsae (Chaetognatha: Phragmophora: Heterokrohniidae), a new species of deep-sea arrow worm from the Gulf of California

FIGURE 4. Archeterokrohnia docrickettsae n. sp., holotype. A, trace of corona ciliata. B, lateral fins. C, seminal vesicles and tail fin. Scale bars: 1 mm.

FIGURE 3 in Archeterokrohnia docrickettsae (Chaetognatha: Phragmophora: Heterokrohniidae), a new species of deep-sea arrow worm from the Gulf of California

FIGURE 3. Head of Archeterokrohnia docrickettsae n. sp., holotype. A, ventral view of living specimen with apical gland protruding from beneath the hood. B, ventral view of preserved specimen with teeth/hooks. Scale bars: 0.5 mm. Abbreviations: at, anterior teeth; h, edge of hood; pt, posterior teeth; vp, vestibular plate.

FIGURE 1. Archeterokrohnia docrickettsae n in Archeterokrohnia docrickettsae (Chaetognatha: Phragmophora: Heterokrohniidae), a new species of deep-sea arrow worm from the Gulf of California

FIGURE 1. Archeterokrohnia docrickettsae n. sp., holotype. A, lateral view, shortly after recovery aboard ship. B, dorsal view, shortly after recovery aboard ship. C, dorsal view, after 4 months preservation in 5% formalin/seawater. Total length (not including tail fin) 28.5 mm. Scale bar: 2 mm.

FIGURE 2. Archeterokrohnia docrickettsae n in Archeterokrohnia docrickettsae (Chaetognatha: Phragmophora: Heterokrohniidae), a new species of deep-sea arrow worm from the Gulf of California

FIGURE 2. Archeterokrohnia docrickettsae n. sp., holotype. A, ventral view. B, ventral ganglion, preserved specimen. Scale bars: 1 mm. Abbreviations: vg, ventral ganglion; ov, ovary; ag, accessory gland.

FIGURE 5. a, b in The first record of an association between a pontoniine shrimp (Crustacea: Decapoda: Palaemonidae: Pontoniinae) and a thalassematid spoon worm (Echiura: Thalassematidae), with the description of a new shrimp species

FIGURE 5. a, b—Eupontonia nudirostris sp. nov., holotype, non-ovigerous female, live coloration; c—echiurian host—Listriolobus sp. (Echiura, Thalassematidae).

FIGURE 4 in The first record of an association between a pontoniine shrimp (Crustacea: Decapoda: Palaemonidae: Pontoniinae) and a thalassematid spoon worm (Echiura: Thalassematidae), with the description of a new shrimp species

FIGURE 4. Eupontonia nudirostris sp. nov., holotype, non-ovigerous female: a—pereiopod I; b—distal segments of pereiopod I; c—pereiopod II; d—distal segments of pereiopod II; e—carpo-meral articulation of pereiopod II; f—fingers of pereiopod II; g—pereiopod III; h—dactylus of pereiopod III; i—pereiopod IV; j—pereiopod V.

FIGURE 2 in The first record of an association between a pontoniine shrimp (Crustacea: Decapoda: Palaemonidae: Pontoniinae) and a thalassematid spoon worm (Echiura: Thalassematidae), with the description of a new shrimp species

FIGURE 2. Eupontonia nudirostris sp. nov., holotype, non-ovigerous female: a, b—front of carapace and rostrum, lateral view; c—front of carapace and anterior appendages, dorsal view; d—processes of fourth and fifth thoracic sternites; e—sixth abdominal somite, telson and uropods, lateral view; f—same, dorsal view; g—distal margin of telson, dorsal view; h—antennule, dorsal view; 1—same, ventral view; j—antenna, ventral view; k—pleopod II.

FIGURE 3 in The first record of an association between a pontoniine shrimp (Crustacea: Decapoda: Palaemonidae: Pontoniinae) and a thalassematid spoon worm (Echiura: Thalassematidae), with the description of a new shrimp species

FIGURE 3. Eupontonia nudirostris sp. nov., holotype, non-ovigerous female: a—mandible; b—palp of mandible; c—maxillula; d—same, distal margin of upper lacinia; e—maxilla; f—maxilliped I; g—maxilliped II; h—maxilliped III.

FIGURE 4 in Aracia sinaloae sp. n., a new brooding, simultaneous hermaphroditic fan worm from southern Gulf of California (Polychaeta: Sabellidae)

FIGURE 4. Aracia sinaloae sp. n. A, Ventral collar lappets and ventral shields stained with methyl green; B, dorsal lips indicated by arrows and embryos attached to right dorsal-most radiole; C, left dorsal-most radiole with two attached early larvae indicated by arrows; D, late larvae; E–F, dorsal lips (indicated by arrows), dorsal view; G. dorsal lips (indicated by arrows), frontal view of peristomium (ventral lips and radioles removed); H, superior group of thoracic notochaetae; I, thoracic uncinus; J, abdominal uncinus; K, oocytes; L, spermatozoa. A–K, Paratypes EMU–ICML–10034/10035. Abbreviations: vlventral lappets, vsc—ventral shield of collar. Scale bars: A, 0.5 mm; B, E–G, 0.25 mm; C–D, 100 µm; H, 20µm; I–J, 5µm; K, not scaled, 40X; L, not scaled, 100X.

FIGURE 2 in Aracia sinaloae sp. n., a new brooding, simultaneous hermaphroditic fan worm from southern Gulf of California (Polychaeta: Sabellidae)

FIGURE 2. Body structures of Aracia sinaloae sp. n. A, Adult, dorsal view; B, juvenile, dorsal view; C, branchial crown of mature specimen, lateral view; D, cocoon; E, detail of embryos; F, larva; G, collar, dorsal view; H, collar, ventral view, midventral patch of cilia as indicated by arrow. A–H, Paratypes UAA–M142B, M145C mounted for SEM. Abbreviations: apranterior peristomial ring, fg—faecal groove, vsc—ventral shield of collar. White arrow in F: neurotroch, black arrow: prototroch. Scale bars: A, 500 µm; B–D, 200 µm; E, G–H, 100 µm; F, 20 µm.

FIGURE 1 in Aracia sinaloae sp. n., a new brooding, simultaneous hermaphroditic fan worm from southern Gulf of California (Polychaeta: Sabellidae)

FIGURE 1. Aracia sinaloae sp. n., live colour. A, Entire body, dorsal view, showing distribution of oocytes and sperm; B, as A, arrow indicates cocoon; C, thorax and anterior abdomen showing oocytes through body wall as indicated by arrow; D, detail of collar and base of branchial crown, dorsal view; E, cocoon attached to dorsal-most radiolar pair; F, collar and base of branchial crown, lateral view, showing peristomial eye as indicated by arrow. A–F, Holotype MCZ–20145. Scale bars: A–B, 1 mm; C–D, F, 0.5 mm; E, 0.8 mm.

FIGURE 3 in Aracia sinaloae sp. n., a new brooding, simultaneous hermaphroditic fan worm from southern Gulf of California (Polychaeta: Sabellidae)

FIGURE 3. Chaetae and uncini of Aracia sinaloae sp. n. A, Thoracic chaetigers (1: chaetiger 1, 2: chaetiger 2, 3: chaetiger 3); B, thoracic chaetae; C, paleate chaetae; D, thoracic, narrowly hooded chaetae; E, thoracic uncini and companion chaetae; F, abdominal noto- and neurochaetae; G, abdominal neurochaetae; H–I, abdominal uncini. A–I, Paratypes UAA–M147A mounted for SEM. Scale bars: A, 50 µm; B, D, 20 µm; C, E–H, 10 µm; I, 5 µm.

FIGURE 7. Pinnixa banzu n in A new species of Pinnixa (Crustacea: Decapoda: Brachyura: Pinnotheridae) associated with a tube worm, Chaetopterus cautus (Annelida: Polychaeta), from Tokyo Bay, Japan

FIGURE 7. Pinnixa banzu n. sp., paratype, female (5.8 × 11.6 mm), CBM-ZC 12294. A, carapace, dorsal view (setae on left side omitted); B, left chela, outer (extensor) view; C, abdominal somite 6 and telson, outer view (setae omitted). Scale bars: 2 mm for A, C; 1 mm for B.

FIGURE 4. Pinnixa banzu n in A new species of Pinnixa (Crustacea: Decapoda: Brachyura: Pinnotheridae) associated with a tube worm, Chaetopterus cautus (Annelida: Polychaeta), from Tokyo Bay, Japan

FIGURE 4. Pinnixa banzu n. sp., holotype, male (6.6 × 13.1 mm), CBM-ZC 12293. A, left third maxilliped, outer view (setae omitted); B, merus and carpus of left cheliped, dorsal view (setae omitted); C, left chela, outer (extensor) view; D, left second pereopod, inner view (setae omitted); E, left third pereopod, outer view (setae omitted); F, same, dactylus, inner view; G, left fourth pereopod, outer view (setae omitted); H, same, dactylus, inner view; I, left fifth pereopod, outer view (setae omitted); J, same, dactylus, inner view. Scale bars: 2 mm for B–E, G, I; 1 mm for A, F, H, J.

FIGURE 1 in A new species of Pinnixa (Crustacea: Decapoda: Brachyura: Pinnotheridae) associated with a tube worm, Chaetopterus cautus (Annelida: Polychaeta), from Tokyo Bay, Japan

FIGURE 1. Schematic illustration of the fourth pereopod of Pinnixa banzu n. sp., showing measurements of the merus and propodus and terminology specifying surfaces or margins.

FIGURE 6. Pinnixa banzu n in A new species of Pinnixa (Crustacea: Decapoda: Brachyura: Pinnotheridae) associated with a tube worm, Chaetopterus cautus (Annelida: Polychaeta), from Tokyo Bay, Japan

FIGURE 6. Pinnixa banzu n. sp., paratype, female (5.8 × 11.6 mm), CBM-ZC 12294, showing color in life. A, entire animal in dorsal view; B, same, ventral view.

FIGURE 9. Pinnixa rathbuni Sakai, 1934 in A new species of Pinnixa (Crustacea: Decapoda: Brachyura: Pinnotheridae) associated with a tube worm, Chaetopterus cautus (Annelida: Polychaeta), from Tokyo Bay, Japan

FIGURE 9. Pinnixa rathbuni Sakai, 1934, male (5.0 × 10.5 mm), NSMT-Cr 8387. Left ambulatory legs (setae omitted). A, second pereopod, outer view; B. third pereopod, outer view; C, fourth pereopod, outer view; D, same, dactylus, inner view; E, fifth pereopod, outer view; F, same, dactylus, inner view. Scale bars: 1 mm.

FIGURE 3. Pinnixa banzu n in A new species of Pinnixa (Crustacea: Decapoda: Brachyura: Pinnotheridae) associated with a tube worm, Chaetopterus cautus (Annelida: Polychaeta), from Tokyo Bay, Japan

FIGURE 3. Pinnixa banzu n. sp., holotype, male (6.6 × 13.1 mm), CBM-ZC 12293. A, carapace, dorsal view (setae omitted on left side); B, close up of front and ocular peduncles, dorsal view (setae partially omitted); C, frontal part of carapace, ocular peduncles and antennae, anterior view (setae omitted); D, thoracic sternites 1–4, ventral view (setae omitted); E, left side of thoracic sternite 8, posterior view. Scale bars: 2 mm for A, D–F; 1 mm for B, C.

FIGURE 2. Pinnixa banzu n in A new species of Pinnixa (Crustacea: Decapoda: Brachyura: Pinnotheridae) associated with a tube worm, Chaetopterus cautus (Annelida: Polychaeta), from Tokyo Bay, Japan

FIGURE 2. Pinnixa banzu n. sp., holotype, male (6.6 × 13.1 mm), CBM-ZC 12293, showing coloration in life. A, entire animal in dorsal view; B, same, ventral view.