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571 results for “Hydrothermal vents”
Figure 9 in New records of Alvinocarididae (Crustacea: Decapoda: Caridea) from the southwestern Pacific hydrothermal vents, with descriptions of one new genus and three new species
Figure 9. Chorocaris variabilis sp. nov., holotype, female (carapace length 13.6 mm), CBM-ZC 11945. (A) Left third maxilliped, lateral view; (B) same, epipod, dorsal view; (C) left first pereopod, lateral view; (D) same, chela, inner (flexor) view; (E) same, outer (extensor) view; (F) same, carpus, mesial view, showing grooming apparatus; (G) left second pereopod, lateral view; (H) same, chela, extensor view; (I) left third pereopod, lateral view; (J) same, dactylus and distal part of propodus, flexor view; (K) right fourth pereopod (distal 2 segments missing); (L) left fifth pereopod, lateral view; (M) same, dactylus and distal part of propodus, flexor view. Scale bars: 2 mm for A–C, G, I, K, L; 1 mm for D–F, H; 0.5 mm for J, M.
Figure 7 in New records of Alvinocarididae (Crustacea: Decapoda: Caridea) from the southwestern Pacific hydrothermal vents, with descriptions of one new genus and three new species
Figure 7. Chorocaris variabilis sp. nov., holotype, female (carapace length 13.6 mm), CBM-ZC 11945. (A) Anterior part of carapace and cephalic appendages, dorsal view; (B) same, lateral view; (C) carapace, dorsal view; (D) fifth and sixth pleomeres, left side, lateral view; (E) telson and right uropod, dorsal view (marginal setae on uropod omitted); (F) posterior part of telson, dorsal view (slightly deformed); (G) left antennal scale, dorsal view (setae omitted); (H) protopod of right uropod, dorsolateral view. Scale bars: 5 mm for C; 2 mm for A, B, D, E, G, H; 1 mm for F.
Figure 6 in New records of Alvinocarididae (Crustacea: Decapoda: Caridea) from the southwestern Pacific hydrothermal vents, with descriptions of one new genus and three new species
Figure 6. Chorocaris variabilis sp. nov., holotype, female (carapace length 13.6 mm), CBM-ZC 11945, entire animal in lateral view (fourth pereopod in process of regeneration). Scale bar: 5 mm.
Figure 5 in New records of Alvinocarididae (Crustacea: Decapoda: Caridea) from the southwestern Pacific hydrothermal vents, with descriptions of one new genus and three new species
Figure 5. Chorocaris parva sp. nov., paratype, male (carapace length 6.9 mm), CBM-ZC 11940. (A) Anterior part of carapace and cephalic appendages, dorsal view (setae on antennal scale omitted); (B) same, lateral view; (C) endopod of left first pleopod, dorsal view; (D) appendices interna and masculina of left second pleopod, mesial view. Scale bars: 1 mm for A, B; 0.5 mm for C, D.
Figure 4 in New records of Alvinocarididae (Crustacea: Decapoda: Caridea) from the southwestern Pacific hydrothermal vents, with descriptions of one new genus and three new species
Figure 4. Chorocaris parva sp. nov., holotype, ovigerous female (carapace length 8.0 mm), CBM-ZC 11939. (A) Left third maxilliped, lateral view (distal part of ultimate segment damaged); (B) close up of distal part of ultimate segment of right third maxilliped, lateral view; (C) epipod of left third maxilliped, dorsal view; (D) left first pereopod, lateral view; (E) left second pereopod, lateral view; (F) left third pereopod, lateral view; (G) left fourth pereopod, lateral view; (H) left fifth pereopod, lateral view. Scale bars: 1 mm for A, D–H; 0.5 mm for B, C.
Figure 8 in New records of Alvinocarididae (Crustacea: Decapoda: Caridea) from the southwestern Pacific hydrothermal vents, with descriptions of one new genus and three new species
Figure 8. Chorocaris variabilis sp. nov., holotype, female (carapace length 13.6 mm), CBM-ZC 11945. Left mouthparts. (A) Mandible, inner view; (B) maxillule, outer view; (C) maxilla, outer view (posterior lobe of scaphognathite broken off); (D) first maxilliped, outer view; (E) left second maxilliped, outer view; inset, epipod and podobranch, inner view. Scale bars: 1 mm.
Figure 2 in New records of Alvinocarididae (Crustacea: Decapoda: Caridea) from the southwestern Pacific hydrothermal vents, with descriptions of one new genus and three new species
Figure 2. Chorocaris parva sp. nov., holotype, ovigerous female (carapace length 8.0 mm), CBM-ZC 11939. (A) Anterior part of carapace and cephalic appendages, dorsal view; (B) same, lateral view; (C) carapace, dorsal view; (D) fourth to sixth pleomeres, right side, lateral view; (E) telson and right uropod, dorsal view (marginal setae on uropod omitted); (F) posterior margin of telson, dorsal view; (G) right antennal scale, dorsal view (setae omitted); (H) distolateral tooth of right antennal scale, dorsal view; (I) protopod of right uropod, dorsolateral view. Scale bars: 2 mm for C; 1 mm for A, B, D, E, G, I; 0.5 mm for F, H.
Figure 1 in New records of Alvinocarididae (Crustacea: Decapoda: Caridea) from the southwestern Pacific hydrothermal vents, with descriptions of one new genus and three new species
Figure 1. Chorocaris parva sp. nov., holotype, ovigerous female (carapace length 8.0 mm), CBM-ZC 11939, entire animal in lateral view (third and fourth pleonal pleura and left uropod partially damaged). Scale bar = 2 mm.
Figure 3 in New records of Alvinocarididae (Crustacea: Decapoda: Caridea) from the southwestern Pacific hydrothermal vents, with descriptions of one new genus and three new species
Figure 3. Chorocaris parva sp. nov., holotype, ovigerous female (carapace length 8.0 mm), CBM-ZC 11939. (A) Left mandible, inner view; (B) left maxillule, outer view; (C) left maxilla, outer view; (D) left first maxilliped, outer view; (E) same, endopod, inner view; (F) left second maxilliped, outer view; (G) chela of left first pereopod, inner (flexor) view; (H) same, outer (extensor) view; (I) carpus of left first pereopod, mesial view, showing grooming apparatus; (J) chela of left second pereopod, extensor view; (K) dactylus and propodus of left third pereopod, lateral view; (L) same, flexor view; (M) distal part of propodus of left third pereopod, obliquely flexor view; (N) dactylus and distal part of propodus of left fifth pereopod, lateral view; (O) same, flexor view; (P) propodus of left fifth pereopod, flexor view. Scale bars: 1 mm for C–F; 0.5 mm for A, B, G–P.
Figure 2 in Geochemistry drives the allometric growth of the hydrothermal vent tubeworm Riftia pachyptila (Annelida: Siboglinidae)
Figure 2. Morphology of the vestimentiferan tubeworms Riftia pachyptila. A, drawings of a female in different positions. Body parts measured in this study: obturaculum (ob) comprising the obturacular lobes (obl) and tentacular lamellae (tl), vestimentum (vm), trunk (tr), and opisthosoma (op). B, male individual distinguished by genital grooves (gg). C, the unique finding of Riftia individuals from the Guaymas Basin with split lobes of the ventral posterior vestimental fold (pvm). D–F, individuals with different body proportions: D, juvenile female; E, F, adult females.
Figure 3 in Geochemistry drives the allometric growth of the hydrothermal vent tubeworm Riftia pachyptila (Annelida: Siboglinidae)
Figure 3. Summary of our findings on the allometric growth of Riftia pachyptila. A, all body parts, namely obturaculum (ob), vestimentum (vm), trunk (tr), and opisthosoma (op), are shorter in juveniles than in adults; the growth rate is higher for the trunk, and minimal for the opisthosoma (Hypothesis 1). The lines connect the body parts to make these differences even more evident. B, the different conditions between the basalt-hosted, sulphide-rich vents at 9 °EPR and 21 °N EPR, and the highly sedimented, sulphide-poor vents at 27 °N EPR in the Guaymas Basin affect the growth of each body part (Hypothesis 2). The 'fat' morphotype from basalt locations is characterized by the presence of thicker vestimentum (Ø vm), wider tube opening (Ø tb), longer trunk (L tr), and comparatively shorter obturaculum (L ob) and smaller number of tentacular lamellae (N lam). The 'slim' morphotype from the sedimented vents has thinner and shorter trunk, but longer tentacular crowns and higher number of lamellae. This variability might be adaptive and selected to keep the sulphide uptake near to the optimum values for the symbionts.
Figure 1. A in Geochemistry drives the allometric growth of the hydrothermal vent tubeworm Riftia pachyptila (Annelida: Siboglinidae)
Figure 1. A, map showing the position of the vents investigated in this study. For details on each sampling stations see Table 1. B, C, the hydrothermal landscapes in the sediment-hosted hydrothermal vents on the Guaymas Basin (27 °N EPR). D–F, basalt-hosted hydrothermal vents in the 21 °N EPR and 9 °N EPR fields. Photo taken using DSRV "Mir" camera.
FIGURE 2 in First columbellid species (Gastropoda: Buccinoidea) from deep-sea hydrothermal vents, discovered in Okinawa Trough, Japan
FIGURE 2. Phylogenetic reconstruction using the COI gene (618 bp) showing Astyris thermophilus n. sp. nested within Columbellidae. Node values indicate Bayesian posterior probability, those lower than 0.7 are omitted. The DDBJ/EMBL/GenBank accession numbers for each sequence used are shown inside brackets (LC329027 and LC329028 for the two sequenced specimens of A. thermophilus n. sp.).
FIGURE 1. Astyris thermophilus n in First columbellid species (Gastropoda: Buccinoidea) from deep-sea hydrothermal vents, discovered in Okinawa Trough, Japan
FIGURE 1. Astyris thermophilus n. sp. A–D. Holotype (UMUT RM32644). E. Paratype #1 (NSMT Mo 78990). F. Paratype #2 (UMUT RM32645), periostracum removed to show spiral striae. G. Protoconch of paratype #6, a juvenile specimen (UMUT RM 32646). H. Operculum of paratype #2 (UMUT RM32645). I. Radula of paratype #2, UMUT RM32645). Scale bars = 2 mm (A–F), 500 µm (G, H), 20 µm (I).
FIGURE 5 in A new genus and one new species of the family Uristidae Hurley, 1963 (Amphipoda, Lysianassoidea) described from hydrothermal vent of the Okinawa Trough, NW pacific
FIGURE 5. Liuiuristis thermalis sp. nov., MBM 286562, Paratype, J(6.3 mm): G1 L, left gnathopod; G2 L, left gnathopod 2.
FIGURE 3 in A new genus and one new species of the family Uristidae Hurley, 1963 (Amphipoda, Lysianassoidea) described from hydrothermal vent of the Okinawa Trough, NW pacific
FIGURE 3. Liuiuristis thermalis sp. nov., MBM 286562, Holotype, ♀(6.8 mm): LL, lower lip; Md R, right mandible; Md L, left mandible; Mx1 L, left maxilla 1 with SEM picture of outer plate; Mx2 R, right maxilla 2; Mxp, maxilliped; Paratype, J(6.3 mm): UL, upper lip.
FIGURE 4 in A new genus and one new species of the family Uristidae Hurley, 1963 (Amphipoda, Lysianassoidea) described from hydrothermal vent of the Okinawa Trough, NW pacific
FIGURE 4. Liuiuristis thermalis sp. nov., MBM 286562, Holotype, ♀(6.8 mm): P3 R, right pereopod 3; P4 R, right pereopod 4; P5 R, right pereopod 5; P6 R, right pereopod 6; P7 R, right pereopod 7; H, head; U2 L, left uropod 2; U3 L, left uropod 3; T, telson; Paratype, J(6.3 mm): A1, antenna 1; A2, antenna 2; Md L, left mandible, U1 L, left uropod 1.
FIGURE 2 in A new genus and one new species of the family Uristidae Hurley, 1963 (Amphipoda, Lysianassoidea) described from hydrothermal vent of the Okinawa Trough, NW pacific
FIGURE 2. Liuiuristis thermalis sp. nov., MBM 286562, Holotype, ♀(6.8 mm): G1 R, right gnathopod; G2 R, right gnathopod 2.
FIGURE 1 in A new genus and one new species of the family Uristidae Hurley, 1963 (Amphipoda, Lysianassoidea) described from hydrothermal vent of the Okinawa Trough, NW pacific
FIGURE 1. Maximum likelihood (ML) and Bayesian Inference (BI) trees of Uristidae using combined sequences of COI and 28S. The number at each node represent bootstrap values (BP) (left) and Bayesian posterior probability (BPP) (right). Liuiuristis gen. nov.is highlighted in red and bold.
FIGURE 1 in First zoeal stage of the Indian Ocean hydrothermal vent crab, Austinograea rodriguezensis Tsuchida & Hashimoto, 2002 (Decapoda: Brachyura: Bythograeidae)
FIGURE 1. Map showing the study area along the Central and Southeast Indian Ridges in the Indian Ocean. Sampling locations indicated with stars and position of videos as dots.
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Allen Brain Atlas
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International Brain Laboratory public data
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OpenNeuro
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