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FIGURE 3. Spionid adult morphology. Head and anterior segments. A in Spionidae (Annelida) from shallow waters around the British Islands: an identification guide for the NMBAQC Scheme with an overview of spionid morphology and biology
FIGURE 3. Spionid adult morphology. Head and anterior segments. A, Dispio sp., anterior end, left lateral view, pointed prostomium, long notochaetae of segment 1 directed anteriorly, and papillated postchaetal lamellae on anterior segments, palps missing. B, Aonides sp., anterior end, left lateral view, conical prostomium and branchiae from segment 2, palps missing. C, Scolelepis sp., anterior end, left lateral view, pointed snout composed by anterior peristomial part and posterior prostomial part, and coiled palps with transverse ridges bearing short non-motile cilia. D, Streblospio benedicti, anterior end, left lateral view, peristomial hood, short palps, one pair of branchiae on chaetiger 1, and lateral ciliated organ on achaetous and apodous segment 1. E, Paraprionospio sp., anterior end, dorsal view, peristomial hood enveloping prostomium, palps and first two pairs of branchiae missing. F, Paraprionospio sp., anterior end, left lateral view, peristomial hood, basal sheath on palp, three pairs of branchiae, and lateral ciliated organ on achaetous and apodous segment 1. br—branchia; bs—basal sheath enveloping basal part of palp; dr—dorsal ridge; lo—lateral ciliated organ; nc—notopodial capillaries; pa—palp; pe—peristomium; ph— peristomial hood; pr—prostomium. Scales: A, E—200 µm. B, D—50 µm. C, F—100 µm.
FIGURE 6 in Spionidae (Annelida) from shallow waters around the British Islands: an identification guide for the NMBAQC Scheme with an overview of spionid morphology and biology
FIGURE 6. Spionid adult morphology. General arrangement of chaetae in Spionidae and modified chaetae in segment 5 in Polydorini adults; notice absence of parapodial lamellae on segment 5 in B, E, F, and presence of low lamellae in both rami in C. A, Dipolydora cardalia, segment 4 neuropodium, left lateral view, anterior, posterior and inferior groups of capillaries. B, Boccardia sp., segment 5, left lateral view, brush-topped spines in anterior row and falcate spines in posterior row of notochaetae, and a tuft of short ventral capillaries. C, Pseudopolydora sp., segment 5, left lateral view, dorsal superior capillaries, enlarged capillaries with inflated limbation in anterior row and falcate spines in posterior row of notochaetae (both arranged in reflected J-shaped rows), and ventral capillaries. D, Polydora cornuta, companion chaetae in anterior row and falcate spines in posterior row of notochaetae, characteristic dishevelled, feathery tip in companion chaetae and small lateral tooth in falcate spines. E, Dipolydora cardalia, segment 5, left lateral view, dorsal superior capillaries, companion chaetae in anterior row and falcate spines in posterior row of notochaetae, and ventral capillaries. F, Dipolydora armata, segment 5, left lateral view, three dorsal superior capillaries, two falcate spines with large lateral tooth and cowling on convex side, and three ventral capillaries. an—anterior group of chaetae in podium; ds—dorsal superior capillaries in notopodium; fa—heavy falcate spines; in—inferior capillaries in neuropodium; ne—neuropodial postchaetal lamella; no—notopodial postchaetal lamella; po—posterior group of chaetae in podium; to—lateral tooth in heavy falcate spine; ve—ventral capillaries. Scales: A, D, F—10 µm. B—100 µm. C—50 µm. E—20 µm.
FIGURE 2 in Spionidae (Annelida) from shallow waters around the British Islands: an identification guide for the NMBAQC Scheme with an overview of spionid morphology and biology
FIGURE 2. Spionid adult morphology. Head and anterior segments, all with palps missing. A, Aurospio dibranchiata, anterior end, dorsal view, rounded prostomium, short caruncle extending over segment 1, and two pairs of small branchiae on segments 3 and 4. B, Laonice sp., left fronto-lateral view, prostomium well separated from peristomium, anterior part of U-shaped nuchal organ, and branchiae from segment 2 free from notopodial lamellae. C, Malacoceros sp., anterior end, left lateral view, prostomium with fronto-lateral horns, and branchiae from segment 1 basally fused to notopodial lamellae. D, Laonice cirrata, left fronto-lateral view, prostomium fused to peristomium on fronto-lateral margin, and occipital antenna. E, Microspio sp., anterior end, dorsal view, prostomium bifurcate anteriorly and clearly divided into anterior, middle and posterior parts, branchiae from segment 2 free from notopodial lamellae. F, Microspio sp., anterior end, dorsal view, prostomium rounded anteriorly, branchiae from segment 2 basally fused to notopodial lamellae. an—occipital antenna; br—branchia; fh—frontolateral prostomial horn; lo—lateral ciliated organ; nu—nuchal organ; pa—palp scar; pe—peristomium; pr—prostomium. Scales: A, B—100 µm. C, D—200 µm. E, F—50 µm.
FIGURE 1 in Spionidae (Annelida) from shallow waters around the British Islands: an identification guide for the NMBAQC Scheme with an overview of spionid morphology and biology
FIGURE 1. Spionid adult morphology. Head and anterior segments, all in dorsal view with palps missing. A, Microspio sp., prostomium narrow and rounded anteriorly. B, Spio cf. filicornis, prostomium wide anteriorly, with frontal median incision. C, Marenzelleria viridis, prostomium wide and rounded anteriorly. D, Polydora cornuta, prostomium bilobed anteriorly. E, Malacoceros sp., prostomium with fronto-lateral horns. F, Spiophanes sp., prostomium with fronto-lateral horns and characteristic crook-like spines in neuropodia of segment 1. an—occipital antenna; cr—crook-like spine; fh—fronto-lateral prostomial horn; lo—lateral ciliated organ. Scales: A, B, D–F—100 µm. C—200 µm.
FIGURE 11. Spionid adult morphology. A in Spionidae (Annelida) from shallow waters around the British Islands: an identification guide for the NMBAQC Scheme with an overview of spionid morphology and biology
FIGURE 11. Spionid adult morphology. A, schematic composition of anterior parapodia in Spionidae adults, three groups of chaetae and two kinds of lamellae in each ramus, and lateral sensory ciliated organ between notopodium and neuropodium. B– E, chaetal arrangement in segment 5 in adult polydorins: B, Pseudopolydora spp., three groups of chaetae and small postchaetal lamellae in each ramus; two kinds of spines (anterior- and posterior-row notochaetae) arranged in two J-shaped rows (reflected J in left lateral view); lateral organs lacking. C, Dipolydora spp. and Polydora spp., typical complete set of chaetae, comprising three groups of notochaetae and a group of neurochaetae (ventral capillaries); anterior-row (slender companion chaetae) and posterior-row (heavy falcate spines) notochaetae arranged in a double diagonal row; lateral organs and all parapodial lamellae lacking. D, Dipolydora armata, reduced set of notochaetae (anterior-row notochaetae lacking) and a group of neurochaetae (ventral capillaries); lateral organs and all parapodial lamellae lacking. E, Polydora cornuta, reduced set of notochaetae (superior notochaetae lacking); ventral chaetae, lateral organs and all parapodial lamellae lacking. F–K, six types of openings of glandular organs on neuropodial postchaetal lamellae of segments 5–14 in Spiophanes adults: F, Type 1, Spiophanes tcherniai, small round holes on segments 5–8. G, Type 2, Spiophanes wigleyi, curved horizontal slits on segments 5–8. H, Type 3, Spiophanes japonicum, semicircular openings with one-lobe chaetal spreader on segments 5–7. I, Type 4, Spiophanes berkeleyorum, ornamented openings with bilobed chaetal spreaders on segments 5–7. J, Type 5, Spiophanes duplex, ornamented openings with trilobed chaetal spreaders on segments 5–7. K, Type 6, simple vertical slits, characteristic of all Spiophanes adults from segment 9 to segments 13–14. Newly developed chaetae are depicted by larger signs. All the schemes show segments in left lateral view. an—anterior row notochaetae; lo—lateral sensory ciliated organ; ne—neuropodial postchaetal lamella; no—notopodial postchaetal lamella; po—posterior row notochaetae; su—superior notochaetae; ve— ventral chaetae. A–E—modified from Radashevsky & Fauchald (2000).
FIGURE 4 in Spionidae (Annelida) from shallow waters around the British Islands: an identification guide for the NMBAQC Scheme with an overview of spionid morphology and biology
FIGURE 4. Spionid adult morphology. Nuchal organs; palps missing in A–C. A, Spiophanes sp., anterior end, dorsal view, bell-shaped prostomium with extended fronto-lateral edges, and nuchal organs as long straight longitudinal ciliary bands; notice that prostomium not extending posteriorly as a caruncle. B, Spio sp., anterior end, dorsal view, anterior J-shaped metamers of nuchal organs. C, Prionospio sp., anterior end, fronto-dorsal view, U-shaped nuchal organs, ear-like structure formed by fusion of posterior dorsal part of peristomium and notopodial postchaetal lamella of segment 1, and everted proboscis. D, Spio cf. filicornis, middle segments, dorsal view, paired oval nuchal metamers. E, Laonice sp., middle segments, dorsal view, posterior part of long low caruncle sided by U-shaped nuchal organs. F, Dispio sp., middle segments, dorsal view, nuchal metamers and various dorsal ciliation. ea—ear-like structure; lo—lateral ciliated organ; nt—nototroch; nu—nuchal organ; pa—palp scar; pb—proboscis; pe—peristomium; pr—prostomium; tc—intersegmental transverse ciliation. Scales: A, C, F—100 µm. B, D—50 µm. E—30 µm.
FIGURE 3 in On some shallow-water Tanaidomorpha (Crustacea: Peracarida: Tanaidacea) of Chilean fjords, with description of a new species of Zeuxoides Sieg, 1980
FIGURE 3. Zeuxoides troncosoi sp. nov., A, female cheliped. B, detail of the female chela. C-H, pereopods 1–6 respectively. I, pleopod 1. J, uropod.
FIGURE 7 in On some shallow-water Tanaidomorpha (Crustacea: Peracarida: Tanaidacea) of Chilean fjords, with description of a new species of Zeuxoides Sieg, 1980
FIGURE 7. Pancoloides litoralis: A-D, pereopods 1–4 respectively. E, pereopod 6. F, pleopod 1. G, pleopod 3. H, uropod.
FIGURE 10 in On some shallow-water Tanaidomorpha (Crustacea: Peracarida: Tanaidacea) of Chilean fjords, with description of a new species of Zeuxoides Sieg, 1980
FIGURE 10. Nototanais dimorphus, female: A–D, pereopods 1–4 respectively. E, detail of dactylus and unguis of pereopod 4. F, pereopod 6. G, cheliped, outer view. H, chela, inner view. I, uropod. J, pleopod.
FIGURE 2 in On some shallow-water Tanaidomorpha (Crustacea: Peracarida: Tanaidacea) of Chilean fjords, with description of a new species of Zeuxoides Sieg, 1980
FIGURE 2. Zeuxoides troncosoi sp. nov., A, labrum. B, right mandible. C, left mandible. D, detail of mandibular molar. E, labium (only half figured). F, maxillule. G, maxillular palp. H, epignath. I, maxilliped. J, maxilliped endite.
FIGURE 1 in On some shallow-water Tanaidomorpha (Crustacea: Peracarida: Tanaidacea) of Chilean fjords, with description of a new species of Zeuxoides Sieg, 1980
FIGURE 1. Zeuxoides troncosoi sp. nov., female: A, holotype, dorsal. B, pleotelson. C, antennule. D, antenna.
FIGURE 9 in On some shallow-water Tanaidomorpha (Crustacea: Peracarida: Tanaidacea) of Chilean fjords, with description of a new species of Zeuxoides Sieg, 1980
FIGURE 9. Nototanais dimorphus, female: A, habitus, dorsal. B, antennule. C, antenna. D, labrum. E, maxilla. F, maxillule. G, maxillular palp. H, left mandible. I, right mandible. J, maxilliped. K, labium.
FIGURE 6 in On some shallow-water Tanaidomorpha (Crustacea: Peracarida: Tanaidacea) of Chilean fjords, with description of a new species of Zeuxoides Sieg, 1980
FIGURE 6. Pancoloides litoralis: A, right mandible. B, left mandible. C, labium. D, maxillule. E, maxilliped. F, maxilliped endite. G, epignath.
FIGURE 10 in Tanaidacea (Crustacea) from Macaronesia III. The shallow-water Tanaidomorpha from the Cape Verde archipelago
FIGURE 10. Pseudotanais (Akanthinotanais) breviaquas n. sp. A, cheliped. B, pereopod 1. C, pereopod 2. D, pereopod 3. E, Pereopod 4. F, pereopod 5. G, pereopod 6. Scales bars 0.5 mm.
FIGURE 9 in Tanaidacea (Crustacea) from Macaronesia III. The shallow-water Tanaidomorpha from the Cape Verde archipelago
FIGURE 9. Pseudotanais (Akanthinotanais) breviaquas n. sp., female. A holotype, lateral view scale bar 1.0 mm. B–M paratype, Scale bars 0.1 mm. B, antennule. C, antenna. D, labrum. E, left mandible. F, right mandible. G, labium. H, maxillule. I, maxilla. J, maxilliped. K, epignath. L, pleopod. M, Uropod.
FIGURE 8. Paratanais vicentetis n in Tanaidacea (Crustacea) from Macaronesia III. The shallow-water Tanaidomorpha from the Cape Verde archipelago
FIGURE 8. Paratanais vicentetis n. sp., paratype, female. A, cheliped. B, pereopod 1. C, pereopod 2. D, pereopod 3. E, Pereopod 4. F, pereopod 5. G, pereopod 6. H, pleopod. I, uropod. Scale bar 0.5 mm.
FIGURE 7. Paratanais vicentetis n in Tanaidacea (Crustacea) from Macaronesia III. The shallow-water Tanaidomorpha from the Cape Verde archipelago
FIGURE 7. Paratanais vicentetis n. sp., female. A–B holotype, scale bar 1.0 mm. C–N paratype, Scale bars 0.1 mm. A, dorsal view. B, lateral view. C, antennule. D, antenna. E, labrum. F, left mandible, incisor & lacinia mobilis. G, same, molar. H, right mandible. I, labium. J, maxillule, endite. K, same, palp. L, maxilla. M, maxilliped. N, same endite.
FIGURE 6. Leptochelia parasavignyi n in Tanaidacea (Crustacea) from Macaronesia III. The shallow-water Tanaidomorpha from the Cape Verde archipelago
FIGURE 6. Leptochelia parasavignyi n. sp., primary male, paratype. A, pereopod 1. B, pereopod 2. C, pereopod 3. D, Pereopod 4. E, pereopod 5. F, pereopod 6. Scale bar 0.5 mm.
FIGURE 4. Leptochelia parasavignyi n in Tanaidacea (Crustacea) from Macaronesia III. The shallow-water Tanaidomorpha from the Cape Verde archipelago
FIGURE 4. Leptochelia parasavignyi n. sp., primary male, paratype. A, lateral view, scale bar 1.0 mm. B, antennule. C, antenna, scale bar 0.5 mm. D, same, article 1–3, scale bar 0.1 mm.
FIGURE 5. Leptochelia parasavignyi n in Tanaidacea (Crustacea) from Macaronesia III. The shallow-water Tanaidomorpha from the Cape Verde archipelago
FIGURE 5. Leptochelia parasavignyi n. sp., primary male, paratype. A–D & F–H scale bars 0.1 mm. E, scale bar 0.5 mm. A, labrum. B, maxillule palp. C, maxilliped. D, epignath. E, cheliped. F, same, propodus. G, pleopod. H, uropod.
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