869 research outputs found
Eucalathis daphneae Bitner & Logan 2016, n. sp.
No full textEucalathis daphneae n. sp. (Fig. 10 E-O; Table 9) TYPE MATERIAL. — North-West Madagascar. MIRIKY, stn DW 3234, holotype (MNHN IB-2013-61; Fig. 10 F-J). — Same data, stn DW 3196, paratypes (MNHN IB-2013-62, 63; Fig. 10E, K-O). TYPE LOCALITY. — Madagascar, MIRIKY, stn DW 3234, 13°27'S, 47°55'E, 187- 247 m. DIAGNOSIS. — Eucalathis with single, broad, rounded costae nearly smooth in anterior half, and incomplete loop. MATERIAL EXAMINED. — North-West Madagascar. MIRIKY, stn DW 3196, 8 bivalved specimens. — Stn DW 3234, 2 bivalved specimens, 1 ventral valve, 1 dorsal valve. DEPTH RANGE. — 187-249 m DESCRIPTION Shell small (maximum observed length 5.9 mm), ventribiconvex, widely subtriangular in outline. Shell surface covered with 10-12 strong, single, rounded costae. Costae weakly beaded posteriorly, nearly smooth in anterior half except where crossed by elevated growth lines; intercostal spaces wide. Anterior commissure rectimarginate. Hinge line slightly curved. Beak low, suberect. Foramen large, subcircular, mesothyrid; deltidial plates small, triangular (Fig. 10E, G). Ventral valve interior with small teeth; pedicle collar wide. Dorsal valve interior with massive inner socket ridges extending beyond margin. Cardinal process distinct. Crura long, slender; crural processes short, can be slightly incurved. Loop short with an incomplete transverse band (Fig. 10 I-O). Low, short median ridge visible on inner dorsal valve. Inner margin of both valves crenulated. REMARKS In size, outline and ornamentation the new species described here is most similar to Eucalathis rotundata. In the strong costation E. daphneae n. sp. also resembles E. rugosa Cooper, 1973, differing in size and outline, as well as in the character of costae. E. rugosa possesses beaded, strongly tuberculate ribs (Cooper 1973c; Laurin 1997; Bitner 2008, 2009, 2010); in E. daphneae ribs are nearly smooth. However, the species described by Cooper (1973c, 1981a) have a typical loop for the genus, whereas in all specimens collected in North-West Madagascar the loop has an incomplete transverse band. Among Recent representatives of chlidonophorids only in the species Melvicalathis macroctena (Zezina, 1981) may the loop be incomplete (Zezina 1981b; Lee et al. 2008), however, it possesses broad, triangular in cross-section costae with smooth ridges without any tubercles, differing greatly from E. daphneae. In the fossil chlidonophorids an incomplete loop is observed only in the Eocene-Oligocene genus Orthothyris Cooper, 1955 (see Bitner & Müller 2015).Published as part of Bitner, Maria Aleksandra & Logan, Alan, 2016, Recent Brachiopoda from the Mozambique-Madagascar area, western Indian Ocean, pp. 5-41 in Zoosystema 38 (1) on page 18, DOI: 10.5252/z2016n1a1, http://zenodo.org/record/457814
Hearing in 44-45 year olds with m.1555A > G, a genetic mutation predisposing to aminoglycoside-induced deafness: a population based cohort study.
No full textBackground The mitochondrial DNA mutation m.1555A>G predisposes to permanent idiosyncratic aminoglycoside-induced deafness that is independent of dose. Research suggests that in some families, m.1555A>G may cause non-syndromic deafness, without aminoglycoside exposure, as well as reduced hearing thresholds with age (age-related hearing loss). Objectives To determine whether adults with m.1555A>G have impaired hearing, a factor that would inform the cost-benefit argument for genetic testing prior to aminoglycoside administration. Design Population-based cohort study. Setting UK. Participants Individuals from the British 1958 birth cohort. Measurements Hearing thresholds at 1 and 4 kHz at age 44-45 years; m.1555A>G genotyping. Results 19 of 7350 individuals successfully genotyped had the m.1555A>G mutation, giving a prevalence of 0.26% (95% CI 0.14% to 0.38%) or 1 in 385 (95% CI 1 in 714 to 1 in 263). There was no significant difference in hearing thresholds between those with and without the mutation. Single-nucleotide polymorphism analysis indicated that the mutation has arisen on a number of different mitochondrial haplogroups. Limitations No data were collected on aminoglycoside exposure. For three subjects, hearing thresholds could not be predicted because information required for modelling was missing. Conclusions In this cohort, hearing in those with m.1555A>G is not significantly different from the general population and appears to be preserved at least until 44-45 years of age. Unbiased ascertainment of mutation carriers provides no evidence that this mutation alone causes non-syndromic hearing impairment in the UK. The findings lend weight to arguments for genetic testing for this mutation prior to aminoglycoside administration, as hearing in susceptible individuals is expected to be preserved well into adult life. Since global use of aminoglycosides is likely to increase, development of a rapid test is a priority
BRYOZOANS AND MICROMORPHIC BRACHIOPODS (LOPHOPHORATA) FROM THE BARTONIAN-PRIABONIAN OF THE ALANO DI PIAVE SECTION (NE ITALY)
No full textThe Alano di Piave section (Veneto region, NE Italy) contains one of the best Tethyan hemipelagic records of the Middle-Late Eocene transition and has been recently proposed as candidate for the Global Stratotype Section and Point (GSSP) of the Priabonian (Agnini et al., 2011). It consists of ~130m of mid bathyal marls with intercalated several silty-sandy and ruditic layers of variable thickness and composition. During micropaleontological investigations, several specimens of bryozoans and brachiopods have been recovered, mostly in correspondence of two bioclastic beds located at +19 and +32m within the Bartonian portion of the section. Such beds include larger foraminifera (nummulitids and orthophragminids) and other bioclasts whose source area was the nearby Lessinian Shelf. Bryozoans commonly occur, but their moderate to poor preservation state often hampers confident taxonomic identification. The bryofaunal composition is identical in both the beds and arborescent cyclostomes dominate in abundance over cheilostomes. Cyclostomes and cheilostomes belong to erect rigid and flexible growth forms, indicating a source area in a quiet environment at about 150-200m of depths. The presence of the encrusting species Vibracella trapezoidea is compatible with such environment, because it frequently encrusted on nummulitids. The Bartonian assemblage from Alano, on the whole, is very similar to the rich Priabonian-Rupelian bryofaunas of the classical shallow-water sections of the Berici Hills and Lessini Mts., West of Alano di Piave (e.g. Braga, 2008).
The brachiopod fauna, mostly recovered from the upper bioclastic bed ("Canova bed", at +32m) consists of six, exclusively micromorphic, species belonging to five genera, i.e. Terebratulina tenuistriata, Orthothyris pectinoides, Lacazella mediterranea, Joania cf. cordata, Argyrotheca cf. cuneata, and Argyrotheca sp. cf. A. crassicostata. The former three species have been already reported from the Late Eocene of NE Italy (Bitner & Dieni, 2005) and are widely distributed throughout whole Europe. The occurrence in the studied assemblage of Joania extends the stratigraphical range of this genus from the Oligocene to the Middle Eocene (Bartonian).
Within the Priabonian portion of the Alano section, from ca. +100m upward, a bispecific, low-density bryozoan assemblage (Batopora rosula + B. stoliczkai) is present. The absence of bioclastic beds or other sedimentary disturbances indicate a genuine, in situ assemblage. Based on benthic foraminiferal assemblages and Recent monospecific or oligospecific assemblages of conescharelliniform (e.g. Moissette 1996), we interpret such Batopora assemblage as characteristic of soft sediments deposited in a full bathyal environment. Such finding probably represents the first record of a deep-water conescharelliniform assemblage in the Eocene of Italy
Investigation of mitochondrial m.1555A>G aminoglycoside hearing loss
No full textThe mitochondrial DNA mutation, m.1555A>G, predisposes to severe hearing loss following aminoglycoside antibiotic exposure. The m.1555A>G mutation can also lead to hearing loss in the absence of antibiotic exposure termed non-syndromic m.1555A>G hearing loss. Two distinct concepts of mitochondrial dysfunction related to the m.1555A>G mutation have been postulated - mRNA misreading and 12S m⁶₂A rRNA methylation. Evidence from cell and animal models has indicated that m.1555A>G may make the 12S rRNA a better substrate for m⁶₂A methylation by the mitochondrial transcription factor B1 (TFB1M) enzyme, resulting in a higher ratio of methylated: unmethylated 12S rRNA transcripts in the mitochondrion, so called ‘hypermethylation’. Hypermethylation is thought to trigger a cascade of events, which results in mitochondrial dysfunction and hearing loss. Using a novel fluorescent method, suitable for paediatric patients, 12S m⁶₂A rRNA methylation was investigated in primary and non-primary cell-derived RNA samples from patients with m.1555A>G and controls. The data presented in this work indicates that previous findings may be an artefact of the experimental models used to study this hypothesis and 12S m⁶₂A rRNA methylation is unlikely to be a pathogenic mechanism. Aminoglycoside-induced reactive oxygen species (ROS) production is reported to play a key role in cochlear cell death. It is hypothesised that increased mitochondrial mRNA misreading disrupts oxidative phosphorylation, which leads to increased ROS. Using a multiplex flow cytometry-based method to measure mitochondrial superoxide, the response of cells from cases with m.1555A>G and controls to aminoglycoside treatment was examined. The data indicates that the control response to aminoglycoside treatment is variable. Exploring this variation will be crucial if the effects of antibiotic-induced changes in mitochondrial mRNA misreading are to be investigated and the cellular events that ensue to be targeted for treatment
FIG. 5. — A-G in New data on the recent brachiopods from the Fiji and Wallis and Futuna islands, South-West Pacific
No full textFIG. 5. — A-G, Basiliola lucida (Gould, 1862), Fiji, Lau Ridge, BORDAU 1: A-D, ventral, dorsal, lateral and anterior views of complete specimen (MNHN BRA-3069), stn DW 1472, 262-266 m; E, SEM micrograph of inner view of ventral valve, posterior part (MNHN BRA-3070), stn CP 1469, 314-377 m; F, G, SEM micrographs of posterior part of dorsal valve interior (MNHN BRA-3071), stn CP 1469, 314-377 m; H-L, Basiliola beecheri (Dall, 1895), Fiji, Lau Ridge; H-J, dorsal, lateral and anterior views of complete specimen (MNHN BRA-3072), stn CP 1412, 400-407 m; K, L, SEM micrographs of posterior part of dorsal valve interior (MNHN BRA-3073), stn CP 1394, 416 m. Scale bars: A-D, 0.5 cm; E-G, 1 mm; H-J, 1 cm; K, L, 2 mm.Published as part of Bitner, Maria Aleksandra, 2008, New data on the recent brachiopods from the Fiji and Wallis and Futuna islands, South-West Pacific, pp. 419-461 in Zoosystema 30 (2) on page 428, DOI: 10.5281/zenodo.539293
Oceanithyris juveniformis Bitner & Zezina
No full text<i>Oceanithyris juveniformis</i> Bitner & Zezina gen. et sp. nov. <p>(Fig. 3 A–Q)</p> <p> <b>Diagnosis.</b> As for the genus.</p> <p> <b>Etymology.</b> Referring to the juvenile morphological features.</p> <p> <b>Type locality.</b> Clarion-Clipperton Zone, north-eastern Pacific, station 41, 13.27°N, 134.45°W, depth 4790 m.</p> <p> <b>Holotype.</b> Specimen in Fig. 3 B–E (XI-52-23 /1), collected in 2006, station 41.</p> <p> <b>Paratypes.</b> Ventral valve in Fig. 3 M– O (XI-52-23 /4), collected in 2000, station 27; specimen in Fig. 3 F–H (XI-52-23 /2), collected in 2003, station 217; dorsal valve in Fig. 3 I–L (XI-52-23 /3), station 217.</p> <p> <b>Other material examined.</b> Three specimens collected in 2003, stations 185–199; three specimens collected in 2006, station 41.</p> <p> <b>Depth range.</b> 4580–4850 m.</p> <p>Measurements (in mm).</p> <p> <b>Description.</b> Shell very small (maximum length 3.1 mm), thin, translucent, punctate, elongate oval in outline with the greatest width at midvalve to slightly anterior, strongly biconvex with dorsal valve slightly more convex. Lateral commissures nearly straight, incipiently ventrally convex; anterior commissure rectimarginate. Shell surface smooth with distinct, wrinkled growth lines (5 of them are assumed to constitute annual rings), with very fine striae in the posterior part of the dorsal valve (Fig. 3 E). Hinge line short, curved. Beak short, suberect, eroded in all examined specimens, suggesting a very short pedicle (Fig. 3 E, G) and close attachment to the substrate. Beak ridges rounded. Foramen large, subcircular, deltidial plates rudimentary, triangular, disjunct.</p> <p>Ventral valve interior with moderately large, hooked teeth directed medianly. No dental plates. No pedicle collar but a step-like thickening of the shell is observed (Fig. 3 N). Muscle scars distinct.</p> <p>Dorsal valve interior with strong, high inner socket ridges directed anteriorly. Dental sockets deep. Cardinal process and hinge plates not developed. No brachial skeleton and septum. Lophophore trocholophous with two arms forming a ring (Fig. 3 I).</p> <p> <b>Remarks.</b> The presence of numerous growth lines, including 4 or 5 yearly rings, clearly indicates that the studied specimens represent adult shells. In addition, two ripe eggs were found in gonads, supporting the interpretation of these specimens as mature, despite their diminutive condition.</p> <p>Although these specimens display very few diagnostic morphological features, possessing only high inner socket ridges, they strongly differ in this respect from any brachiopods hitherto described, thus we propose a new genus and a new species.</p>Published as part of <i>Bitner, Maria Aleksandra, Melnik, Vjacheslav P. & Zezina, Olga N., 2013, New paedomorphic brachiopods from the abyssal zone of the north-eastern Pacific Ocean, pp. 281-288 in Zootaxa 3613 (3)</i> on pages 283-285, DOI: 10.11646/zootaxa.3613.3.6, <a href="http://zenodo.org/record/215765">http://zenodo.org/record/215765</a>
Ebiscothyris bellonensis Bitner & Cohen 2015
No full text<i>EBISCOTHYRIS BELLONENSIS</i> GEN. ET SP. NOV. <p>(FIGS 7A–I, 8A–F, 9A–D)</p> <p> <i>Diagnosis</i></p> <p>As for the genus.</p> <p> <i>Etymology</i></p> <p>Referring to the Bellona Plateau, where part of the material was collected.</p> <p> <i>Holotype</i></p> <p>The specimen illustrated in Figure 7E–H, IB-2013-1, was collected at station CP 2616 on the Chesterfield Plateau.</p> <p> <i>Paratypes</i></p> <p>The specimens illustrated in Figures 7A–D, I and 8A– F, IB-2013-2 to IB-2013-6, were collected at stations CP 2557 and CP 2616.</p> <p> <i>Type locality</i></p> <p>Cruise EBISCO, station CP 2616, Coral Sea, Chesterfield Plateau, 19°35.08′S, 158°49.83′E, 786–836 m depth.</p> <p> <i>Material examined</i></p> <p>Coral Sea, cruise EBISCO, western Bellona Plateau: station DW 2544, 21°09.91′S, 158°38.15′E, 650– 723 m depth, five specimens; station CP 2545, 21°10.04′S, 158°37.40′E, 765–778 m depth, three specimens; station CP 2556, 21°05.29′S, 158°33.72′E, 741– 791 m depth, nine specimens; station CP 2557, 21°06.05′S, 158°31.66′E, 800–923 m depth, three specimens. Chesterfield Plateau: station CP 2616, 19°35.08′S, 158°49.83′E, 786–836 m depth, 28 specimens.</p> <p> <i>Depth range</i></p> <p>650–923 m.</p> <p> <i>Measurements (station, length, width, and thickness, all in mm)</i></p> <p> CP 2616 (holotype), 13.1, 12.0, 8.1; CP 2616 (paratype), 13.1, 12.3, 7.1. Measurements of all currently available specimens of <i>E. bellonensis</i> gen. et sp. nov. are given in Appendix S7.</p> <p> <i>Description</i></p> <p> Shell of medium size, white, thin to translucent anteriorly, elongate oval to subpentagonal in outline, with maximum width at about mid valve. Shell surface smooth, with weakly defined growth lines; lateral and anterior valve margins slightly incurved, thickened (Fig. 7C, D, G, H). Shell biconvex, ventral valve more convex. Lateral commissures dorsally curved, anteri- or commissure strongly and broadly unisulcate. Beak short, suberect to erect. Foramen of medium size, circular, permesothyrid. Deltidial plates conjunct, forming a well-exposed symphytium with only a weak median line of junction in some specimens (cf. Fig. 8A). Pedicle variable, may be as much as ten times as long as the shell (Fig. 7I). The long pedicle differentiates <i>E. bellonensis</i> gen. et sp. nov. from <i>Abyssothyris</i> and other terebratulids. Ventral valve interior with welldeveloped tubular, excavate pedicle collar (Fig. 8F). Teeth small, short (Fig. 8A). Dorsal valve interior with long and medially inclined inner socket ridges that bound wide sockets; fulcral plates well developed. Cardinal process prominent, semi-elliptical (Fig. 8D, F). Outer hinge plates narrow, triangular; crural bases ill defined. Loop short, occupying about 25% of dorsal valve length, with blunt, short, crural processes directed ventrally (Fig. 8B–E). Descending branches subparallel, very wide; transverse band broad, medially folded. Muscle scars strongly impressed on both valves, elongate oval in outline.</p> <p> Ultrastructural analysis shows three shell layers (Fig. 9A–D). The microgranular primary layer is 5.2– 7.8 μm thick, the secondary layer is very thin (3.2– 5.6 μm), and its fibres are wide, implying that mantle epithelial cells are large, and/or that the angle between the fibres and the primary layer is small. In transverse section, the secondary layer shows only two overlapping layers of fibres (Fig. 9B), a feature that has only been reported before in the dyscoliid <i>Xenobrochus norfolkensis</i> Bitner, 2011 (Bitner, 2011: fig. 4E, F); however, the incurved, thickened valve margins are built of several, densely arranged sheets of secondary fibres (see Fig. 9C). The tertiary layer of <i>E. bellonensis</i> gen. et sp. nov. is thick (85–152 μm), with its internal surface showing clear traces of large, irregularly interlocking prisms (Fig. 9C, D). The total shell thickness is 96–160 μm. In <i>Kanakythyris</i> (Fig. 9E, F) the shell is also composed of three layers; however, the secondary layer is much thicker, and the prisms are more irregular on the internal surface, and display delicate ornamentation (Fig. 9F), whereas in <i>E. bellonensis</i> gen. et sp. nov. they are smooth (see Fig. 9D).</p>Published as part of <i>Bitner, Maria Aleksandra & Cohen, Bernard L., 2015, Congruence and conflict: case studies of morphotaxonomy versus rDNA gene tree phylogeny among articulate brachiopods (Brachiopoda: Rhynchonelliformea), with description of a new genus, pp. 486-504 in Zoological Journal of the Linnean Society 173 (2)</i> on pages 494-495, DOI: 10.1111/zoj.12217, <a href="http://zenodo.org/record/5454597">http://zenodo.org/record/5454597</a>
Annuloplatidia richeri Bitner, 2009, sp. nov.
No full textAnnuloplatidia richeri sp. nov. (Fig. 10 A–K) Material examined. Norfolk 1 cruise, Éponge seamount, Stn DW 1692, 178 complete specimens, one ventral valve; Jumeau East seamount, Stn DW 1704, 3 complete specimens; Crypthelia seamount, Stn DW 1724, 9 complete, 3 ventral valves, one dorsal valve. Holotype. The specimen in Figure 10 J–L (MNHN BRA- 3161). Paratypes. The specimens in Fig. 10 A–I (MNHN BRA- 3162–3166). Type locality. Jumeau East seamount, Norfolk Ridge, Stn DW 1704, 23 ° 45 ’ S, 168 ° 16 ’ E, 400– 420 m. Etymology. In honour of Dr Bertrand Richer de Forges, IRD, Nouméa, cruise leader on Norfolk 1 and 2. Diagnosis. Annuloplatidia with ventral valve densely pustulose. Dental plates and short ventral median ridge present. Crura long, descending branches attached directly to the short ascending branches connected by a transverse band. Dorsal septum very high, triangular in profile. Depth range. 200– 967 m. Measurements. (in mm). Station Length Width Thickness Number Depth (m) DW 1692 507–967 1.1–2.1 1.0–2.1 0.3–0.8 DW 1704 400–420 1.0–1.8 0.9–2.0 0.3–0.7 Description. Shell very small with maximum length 2.1 mm, conspicuously punctate. Shell outline very variable, from elongate oval, subcircular to transversely oval or widely subtriangular, usually wider than long in adults; sometimes shell outline irregular if dorsal valve closely applied to the substratum because of a very short pedicle. Ventral valve gently convex, dorsal valve flat anteriorly, slightly convex posteriorly. Ventral valve surface covered with numerous prominent, transversely elongate pustules, dorsal valve surface smooth with very faint radial lines; growth lines numerous on both valves. Beak very short with distinct ridges. Foramen large, subcircular, amphithyrid, flanked by very narrow deltidial plates. Ventral valve interior with sessile, relatively wide pedicle collar and short median ridge in umbonal region, not reaching apex, however (Fig. 10 B, C). Teeth small, hooked with short dental plates. Dorsal valve interior with prominent inner socket ridges. Crura long, crural processes indistinct. Descending branches directly attached to short ascending branches, these connected by transverse band (Fig. 10 D–G). Dorsal median septum very high, triangular in profile. Remarks. The genus Annuloplatidia was erected for those platidiid brachiopods that have ascending branches connected by a transverse band (Zezina 1981 b). So far three species of this genus have been described, i.e. A. annulata (Atkins, 1959) known from the Atlantic and Eastern Pacific, A. horni (Gabb, 1861) from the Pacific coast of North America, and A. indopacifica Zezina, 1981 b from the Western Pacific and eastern part of the Indian Ocean. Annuloplatidia richeri sp. nov. can be readily distinguished from these species in that the ventral valve is densely covered with pustules; in the other species the ventral valve surface is smooth (Atkins 1959; Bernard 1972; Zezina 1981 b; Lüter 2007), although in some specimens of A. annulata the surface can be slightly wrinkled or pustulose (Lüter 2007). Annuloplatidia richeri is half as big as A. annulata (Atkins 1959; Lüter 2007). Being equal to the maximum length of A. richeri, A. annulata lacks fully developed descending branches (Atkins 1959: fig. 4). The latter species also has a narrower pedicle collar, and its ventral median septum runs anteriorly from the pedicle collar (Atkins 1959). Annuloplatidia horni has a ventral valve ornamented by radial lines and lacks, or has very weakly developed, dental plates (Hartlein & Grant 1944; Bernard 1972). Annuloplatidia richeri is also readily distinguished by its smaller size, presence of a ventral septum and hooked teeth, from Western Pacific A. indopacifica, which has teeth in the form of elongate ridges (Zezina 1981 b).Published as part of Bitner, Maria Aleksandra, 2009, Recent Brachiopoda from the Norfolk Ridge, New Caledonia, with description of four new species, pp. 1-39 in Zootaxa 2235 on pages 25-26, DOI: 10.5281/zenodo.19039
Macandrevia King 1859
No full textMacandrevia sp. (Fig. 1 C–G) Material examined. DongSha 2014 cruise, stn CP 4123, 21°36’N, 118°16’E, depth 1612–1665 m, one specimen. Measurements. Length 13.3 mm, width 10.8 mm, thickness 6.1 mm. Description. Shell of medium size, thin, elongate oval with greatest width at mid-valve, ventribiconvex. Shell surface smooth, ornamented only by numerous growth lines. Lateral commissures straight, anterior commissure rectimarginate. Hinge line short, curved. Beak ridges rounded, beak short, suberect. Foramen subcircular, permesothyrid, deltidial plates minute. Ventral valve interior with small hooked teeth supported by strong dental plates united by a callus closely applied to the valve floor (Fig. 1 E, F). Dorsal valve interior with high inner socket ridges. Hinge plates attached directly to the valve floor (Fig. 1 G). No median septum. Loop not preserved. Remarks. The genus Macandrevia is readily recognized by its characteristic permesothyrid foramen, well developed dental plates, and hinge plates extending directly to the valve floor without a median septum. This is the first record of this genus from the West Pacific but the limited material precludes assignment at species level. In size the specimen is close to the northern Atlantic species, Macandrevia novangliae Cooper, 1977 and M. tenera (Jeffreys, 1876) (Cooper 1973b, 1981) as well as to M. emigi Bitner & Logan, 2016 from the Indian Ocean (Bitner & Logan 2016). The specimen differs from M. novangliae in possessing rudimentary deltidial plates (Cooper 1981) and from M. emigi by its elongate oval outline (Bitner & Logan 2016).Published as part of Bitner, Maria Aleksandra & Romanin, Marco, 2017, Recent brachiopods from the South China Sea, NW Pacific, pp. 287-290 in Zootaxa 4306 (2) on page 289, DOI: 10.11646/zootaxa.4306.2.9, http://zenodo.org/record/84383
FIG. 6. — A-H, Xenobrochus rotundus n in New data on the recent brachiopods from the Fiji and Wallis and Futuna islands, South-West Pacific
No full textFIG. 6. — A-H, Xenobrochus rotundus n. sp., Fiji, Lau Ridge, BORDAU 1, stn DW 1469, 314-377 m, SEM: A-D, ventral, dorsal, lateral and anterior views of complete specimen, holotype (MNHN BRA-3075); E, F, inner views of ventral and dorsal valves, paratype (MNHN BRA-3076); G, H, dorsal view of complete specimen (G) and enlargement of dorsal interior (H) to show brachial skeleton, paratype (MNHN BRA-3077);I-L, Abyssothyris wyvillei (Davidson, 1878), complete specimen (MNHN BRA-3074), Fiji, Viti Levu, MUSORSTOM 10, CP 1361; I-K, dorsal, lateral and anterior views; L, SEM micrograph of dorsal interior to show cardinalia and brachidium. Scale bars: A-G, 2 mm; H, L, 1 mm; I-K, 0.5 cm.Published as part of Bitner, Maria Aleksandra, 2008, New data on the recent brachiopods from the Fiji and Wallis and Futuna islands, South-West Pacific, pp. 419-461 in Zoosystema 30 (2) on page 430, DOI: 10.5281/zenodo.539293
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