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FIGURE 2 in First zoeal stage of the Indian Ocean hydrothermal vent crab, Austinograea rodriguezensis Tsuchida & Hashimoto, 2002 (Decapoda: Brachyura: Bythograeidae)

FIGURE 2. CLSM images of Austinograea rodriguezensis Tsuchida & Hashimoto, 2002, zoea I, SMF 61980: A, lateral view; B, dorsal view. Scale bars = 100 µm.

FIGURE 4 in First zoeal stage of the Indian Ocean hydrothermal vent crab, Austinograea rodriguezensis Tsuchida & Hashimoto, 2002 (Decapoda: Brachyura: Bythograeidae)

FIGURE 4. CLSM images of Austinograea rodriguezensis Tsuchida & Hashimoto, 2002, zoea I, SMF 61980: A, maxillule; B, maxilla; C, first maxilliped; D, setation of first maxilliped coxal article; E, right second maxilliped; F, setation of the terminal endopodal article of the left second maxilliped. Scale bars = 50 µm.

FIGURE 3 in First zoeal stage of the Indian Ocean hydrothermal vent crab, Austinograea rodriguezensis Tsuchida & Hashimoto, 2002 (Decapoda: Brachyura: Bythograeidae)

FIGURE 3. Drishti images of Austinograea rodriguezensis Tsuchida & Hashimoto, 2002, zoea I, SMF 61980: A, antennule; B, antenna; C, mandible, anterior view; D, mandible, posterior view. Scale bars = 100 µm.

FIGURE 6 in First zoeal stage of the Indian Ocean hydrothermal vent crab, Austinograea rodriguezensis Tsuchida & Hashimoto, 2002 (Decapoda: Brachyura: Bythograeidae)

FIGURE 6. Austinograea rodriguezensis Tsuchida & Hashimoto, 2002, zoea I, dorsal view, SMF 61980: A, pleon, schematic illustration of pleomeres 3–5; B, telson. Scale bar = 100 µm.

FIGURE 3 in Levensteiniella manusensis sp. nov., a new polychaete species (Annelida: Polynoidae) from deep-sea hydrothermal vents in the Manus Back-Arc Basin, Western Pacific

FIGURE 3. Levensteiniella manusensis sp. nov., detailed structures of the holotype (A–D, G–J) and paratypes (E, MBM285998; F, MBM285999; K, L, MBM285997). A, B, Head and anterior segments, in dorsal and ventral views, right palp detached; C, D, Lateral sides of segments 11–14 in ventral views, arrows point to the dichotomous branches in the first pair of ventral papillae; E, Extended pharynx in dorsal view; F, Posterior segments in ventral view; G, Left 1st elytron from segment 2; H, Left 2nd elytron from segment 4; I, Left 3rd elytron from segment 5; J, Elytron from posterior segment; K, Elytron from anterior segment; L, Elytron from posterior segment. Abbreviation: S1 referring to segment 1, and so on. Scale bars: 1 mm (A– D, K, L), 0.5 mm (E, F) and 2 mm (G–J).

FIGURE 4 in Levensteiniella manusensis sp. nov., a new polychaete species (Annelida: Polynoidae) from deep-sea hydrothermal vents in the Manus Back-Arc Basin, Western Pacific

FIGURE 4. Levensteiniella manusensis sp. nov., parapodia and chaetae of the holotype (A–D, G) and paratype (E, F, H–J, right 9 parapodium, MBM285999). A–D, Four parapodia in anterior (upper positions) and posterior (lower positions) views (A, Right 1st parapodium; B, Right 9th parapodium; C, Right 18th parapodium; D, Left last parapodium); E, Upper notochaetae; F, Lower notochaetae; G, Notochaetae; H, Subacicular neurochaetae; I, Same, showing details of proximal spinous region; J, Supra-acicular neurochaetae, showing details of distal (upper position) and proximal (lower position) spinous regions. Abbreviation: S2 referring to segment 2, and so on. Scale bars: 0.5 mm (A, D), 1 mm (B, C), 100 µm (E–H) and 10 µm (I, J).

FIGURE 1 in Levensteiniella manusensis sp. nov., a new polychaete species (Annelida: Polynoidae) from deep-sea hydrothermal vents in the Manus Back-Arc Basin, Western Pacific

FIGURE 1. Distribution of six species of Levensteiniella described to date based on present study and those of Pettibone (1985, 1988, 1989a, b, 1990) and Hourdez & Desbruyères (2000, 2003).

FIGURE 2 in Levensteiniella manusensis sp. nov., a new polychaete species (Annelida: Polynoidae) from deep-sea hydrothermal vents in the Manus Back-Arc Basin, Western Pacific

FIGURE 2. Levensteiniella manusensis sp. nov. in dorsal (A, C, E, G, I) and ventral (B, D, F, H, J) views. A, B, Holotype in vivo (MBM285996); C, D, Holotype preserved in alcohol; E, F, Paratype (MBM285999); G, H, The other paratype (MBM285999); I, J, Paratype (MBM286000). Scale bars: 5 mm (A, B) and (E–J).

FIGURE 5 in A new deep-sea scalpelliform barnacle, Vulcanolepas buckeridgei sp. nov. (Eolepadidae: Neolepadinae) from hydrothermal vents in the Lau Basin

FIGURE 5. Vulcanolepas buckeridgei sp. nov. (holotype). A. magnified view of protuberant segments of the posterior (pos) and anterior rami (ant) of cirrus I. B. Simple setae of the anterior ramus of cirrus I. C. Serrulate setae of anterior ramus of cirrus I. D. Distal segments of anterior ramus of cirrus I E. Maxilla. F. Serrulate setae on the cutting margin of the maxillule. G. Maxillule. H. simple robust setae on the cutting edge of the maxillule. Scale bars in µm.

FIGURE 1 in A new deep-sea scalpelliform barnacle, Vulcanolepas buckeridgei sp. nov. (Eolepadidae: Neolepadinae) from hydrothermal vents in the Lau Basin

FIGURE 1. Sampling locations of Vulcaolepas buckeridgei sp. nov. and Vulcanolepas sp. 1 in Herrera et al (2015). Note DNA barcode sequences of Vulcanolepas buckeridgei and V. sp. 1 is similar, suggesting they are con-specific.

FIGURE 7 in A new deep-sea scalpelliform barnacle, Vulcanolepas buckeridgei sp. nov. (Eolepadidae: Neolepadinae) from hydrothermal vents in the Lau Basin

FIGURE 7. Genetic results showing that Vulcanolepas buckeridgei sp. nov. represents a single taxon with Neoverruca brachylepadoformis as outgroup in this study. Numbers at nodes are percentages of bootstrap support from maximum likelihood and posterior probabilities from Bayesian inference analysis (ML/BI).

FIGURE 3 in A new deep-sea scalpelliform barnacle, Vulcanolepas buckeridgei sp. nov. (Eolepadidae: Neolepadinae) from hydrothermal vents in the Lau Basin

FIGURE 3. Vulcanolepas buckeridgei sp. nov. (holotype). Dissected individual showing the internal face of the capitulum (S—scutum, T—tergum, ML—medial latus). B. somatic body showing the six pairs of cirri (I–VI) and caudal appendage (CA). Note the six pairs of cirri are located close to each other, without the first pairs being separated from other pairs of cirri, as seen in most scalpellomorph species. Scale bars in cm.

FIGURE 2 in A new deep-sea scalpelliform barnacle, Vulcanolepas buckeridgei sp. nov. (Eolepadidae: Neolepadinae) from hydrothermal vents in the Lau Basin

FIGURE 2. Vulcanolepas buckeridgei sp. nov. (holotype). A. Left view, B. Right view, C. Rostral view, D. Carinal view of whole specimens. T—tergum, S—scutum, R—Rostrum, C—Carina. White arrows indicate the basal angle of the tergum, which is elevated above the capitular-peduncular interface. Scale bars in cm.

FIGURE 4 in A new deep-sea scalpelliform barnacle, Vulcanolepas buckeridgei sp. nov. (Eolepadidae: Neolepadinae) from hydrothermal vents in the Lau Basin

FIGURE 4. Vulcanolepas buckeridgei sp. nov. (holotype). A. Cirri I. B. Cirrus II. C. Cirrus III. D. Cirrus IV. E. Cirrus V. F. Cirrus VI. G. Caudal appendages (CA, indicated by arrow). H. Penis. Scale bars in µm. ant—anterior ramus, pos—posterior ramus.

FIGURE 6 in A new deep-sea scalpelliform barnacle, Vulcanolepas buckeridgei sp. nov. (Eolepadidae: Neolepadinae) from hydrothermal vents in the Lau Basin

FIGURE 6. Vulcanolepas buckeridgei sp. nov. (holotype). A. Right mandible B. Serrated teeth on mandular cutting margin. C. Spine behind the first tooth. D. Inferior angle of mandible. E. Left mandible. F. Magnified view of serrated teeth on cutting margin. G. Mandibulatory palp. H. Labrum. Scale bars in µm.

FIGURE 3. Stygiopontius senokuchiae n in A new dirivultid copepod (Siphonostomatoida) from hydrothermal vent fields of the Izu-Bonin Arc in the North Pacific Ocean

FIGURE 3. Stygiopontius senokuchiae n. sp. adult female, holotype (NSMT-Cr 26842). A, right maXilliped, poSterior; B, right leg 1, anterior; C, left leg 2, anterior; D, left leg 3, anterior; E, left leg 4, anterior; F, right leg 5, dorSal. Scale barS: A, F, 30 µm; B–E, 40 µm.

FIGURE 1 in A new dirivultid copepod (Siphonostomatoida) from hydrothermal vent fields of the Izu-Bonin Arc in the North Pacific Ocean

FIGURE 1. Sampling Site of Stygiopontius senokuchiae n. sp. at 795 m depth on Myojin-Sho Caldera, IZu-Bonin Arc. A, hydrothermal ventS; B, magnified image of the Site and populationS of Paralvinella Spp (yelloWiSh portionS) and bacterial matS (WhitiSh portionS).

FIGURE 4. Stygiopontius senokuchiae n in A new dirivultid copepod (Siphonostomatoida) from hydrothermal vent fields of the Izu-Bonin Arc in the North Pacific Ocean

FIGURE 4. Stygiopontius senokuchiae n. sp. adult male, allotype (NSMT-Cr 26843). A, habituS, dorSal; B, fifth pedigerouS Somite to firSt uroSomite, ventral; C, right antennule, poSterior; D, endopod of right maXilliped, poSterior. Scale barS: A, 100 µm; B, 40 µm; C, 30 µm; D, 20 µm.

FIGURE 2. Stygiopontius senokuchiae n in A new dirivultid copepod (Siphonostomatoida) from hydrothermal vent fields of the Izu-Bonin Arc in the North Pacific Ocean

FIGURE 2. Stygiopontius senokuchiae n. sp. adult female, holotype (NSMT-Cr 26842). A, habituS, dorSal; B, roStral area; C, uroSome, dorSal; D, genital aperture and leg 6, dorSal; E, right caudal ramuS, dorSal; F, left antennule, poSterior; G, right antenna, anterior; H, right mandible; I, right maXillule, poSterior; J, right maXilla, poSterior. Scale barS: A, 200 µm; B, 100 µm; C, 70 µm; D, I, J, 30 µm; E–G, 40 µm; H, 20 µm.