59,970 research outputs found
Litoblatta tucumanae Valverde & Crespo 2021, sp. nov.
No full textLitoblatta tucumanae sp. nov. (Figs. 22–26, 71) Holotype. Argentina. Province of Tucumán: ♁, Departamento Cruz Alta, La Soledad, Cañete (lat 26.8685S, long 64.8452W), 27/I/1966, Bucher E. coll. (IFML) TBLA 002 (= L. brasiliensis in Crespo & Valverde 2008; Crespo et al. 2010) Paratypes. Argentina. Province of Salta: ♁, Cafayate, 20/XII/1970, Stange L. coll. (IFML). Province of Tucumán: ♁, locality missing, 430 m. a.s.l., XII/1946, Córdoba J. coll. (IFML ); ♁, Tucumán, locality missing, 12/I/1965, Weyrauch W. coll. (MLP); ♁, Tafí Viejo 700 m. a.s.l., 10/ III /1962, Weyrauch W. coll. (IFML); ♁, Departamento Leales, San Genaro, V /1948, coll. missing, (IFML); ♁, Famaillá, X/1947, García B.L. coll. (IFML); ♁, Cochuna, (lat 27.317S, long 65.917W), 10/ II /2013, Rubio G.D., Iuri H., Ojanguren A., Porta A. & Adilardi R. colls. (FCEN): ♁, Departamento Cruz Alta, La Soledad, Cañete (lat 26.8685S. long 64.8452W) 4/ III /1967, Bucher E. coll. (IFML) TBLA003. Diagnosis. Paraprocts similar to L. lutea but the spines of the right paraproct are shorter and are placed on the internal basal border (Fig. 23). L2 and via are disposed in an almost right angle (Fig. 24). The scale zone sz (Figs. 26, 71) occupies less than half of the sclerotized surface. Male. Measurements in mm. N= 8. PL: 3.40‾4.36 (3.72); TeL: 13.85‾18.73 (18.73); TL: 17.67‾22.07 (19.73); IO: 0.50‾1.00 (1.00); IOc: 0.40‾0.80 (0.80); IA: 0.80‾0.90 (0.90). Supra anal plate with an apical straight margin (Fig.22). Paraprocts: similar to L. lutea but the spines of the right paraproct are shorter and are placed on the internal basal border (Fig. 23). L2 and via are disposed in an almost right angle. Via slender and slightly curved uniformly (Fig. 24). L3 hook shaped, with an apical incision (Fig. 25). R1P with a quadrangular posterior area sclerotized with scale zone included. The scale zone sz occupies less than half of the sclerotized surface (Fig. 26). Female. Unknown. Etymology. From the Province of Tucumán. Distribution. Argentina-Provinces of Salta and Tucumán.Published as part of Valverde, Alejandra Del Carmen & Crespo, Francisco A., 2021, Four new species of Litoblatta from Argentina with a key to species based on males (Blattaria: Ectobiidae: Blattellinae), pp. 553-568 in Zootaxa 4941 (4) on pages 558-559, DOI: 10.11646/zootaxa.4941.4.5, http://zenodo.org/record/459568
Litoblatta lutea Valverde & Crespo 2021, sp. nov.
No full textLitoblatta lutea sp. nov. (Figs. 1–8, 68) Holotype. Argentina, Province of Chaco: ♁, Castelli J.J. (lat 25.9463S, long 60.6204W), 30/XII/2002, Minoli S. coll. (MACN) MACN-En 34648 (= L. brasiliensis in Crespo & Valverde 2008; Crespo et al. 2010). Paratypes. Argentina. Province of Catamarca: ♁, La Banderita, XI/1951, Kormiley N. coll. (MACN) (= L. brasiliensis in Crespo et al. 2010). Province of Córdoba: ♁, locality missing, 20/XI/1948, López P. coll. (IFML). Province of Corrientes: ♁, Paso Amores, date and coll. missing (MLP). Province of Jujuy: ♁, locality missing, 29/ I/1958, Torres & Ferreira colls. (MLP); ♁, Calilegua (lat 23.7735S, long 64.7710W), I/1949, Willink A. & Monrós colls. (IFML) TBLA001. ♁, Calilegua, XII/1948, Poore B. coll. (IFML); ♁, PN Calilegua, Camping Aguas Negras, 20/ II /2013, Rubio G.D., Iuri H., Ojanguren A., Porta A. & Adilardi R. colls. (FCEN). Province of Salta: ♁, Campo Durán, 16-21/ III /1984, WiIllink A., Claps & Navarro colls. (IFML); ♁, Río Piedras, 15/ III /1938, Birabén M. coll. (MLP). Province of Santiago del Estero: ♁, Matará, 12/XII/1939, Birabén M. coll. (MLP); ♁, Río Salado, Wagner coll. (MLP). Province of Tucumán: ♁, Rumi Punco, 20/ III /1939, Birabén M. & Scott colls. (MLP), ♁, Tucumán (km 1333 between Tapia and Vipos, 700 m. a.s.l.), 4/ III /1965, Weyrauch W. coll. (IFML). Diagnosis. Supra anal apical margin sinuous (Fig. 1). Right paraproct presents a group of converging spines, a feature that allows specific identification (Figs.1–3). R1P ends distally as a quadrangular area bigger than the inner convex scale zone included (Figs. 7–8, 68). Male. Measurements in mm: N= 15. PL: 3.2‾4.42 (4.30); TeL: 11.98‾18.26 (13.10); TL: 15.42‾21.45 (16.00); IO: 0.50‾0.90 (0.60); IOc: 0.40‾0.70 (0.60); IA: 0.50‾1.10 (0.90). Supra anal plate wider than longer. Apical margin sinuous (Fig. 1). Cerci long and hairy (Fig. 2). Left paraproct hook shaped, right paraproct with a group of spines convergent on the internal inferior apex (Fig. 3). Asymmetrical subgenital plate with styli. Left stylus cylindrical and pilous. Right stylus shorter and stouter, conical with its surface covered by small spines (Fig. 4). The margin between the styli is almost straight. Genital sclerites: L3 hook shape with apical incision, L4U present; L2 strait broader basally with a curved via distally, whose width decreases apically. R with the following recognizable sclerites: R3; the cleft, R1S + R2; R4 and R1P (Figs. 5–7). R4 has a tobacco pipe shape and articulates with R2. R1P articulates cranially with R1S and ends distally as a quadrangular area which contains a convex scale zone sz (Fig. 8). Female. Unknown. Etymology. From Latin adjective (masculine), luteus -a (feminine), -um (neuter), yellowish. Distribution. Argentina-Provinces of Catamarca, Chaco, Córdoba, Corrientes, Jujuy, Salta, Santiago del Estero and Tucumán.Published as part of Valverde, Alejandra Del Carmen & Crespo, Francisco A., 2021, Four new species of Litoblatta from Argentina with a key to species based on males (Blattaria: Ectobiidae: Blattellinae), pp. 553-568 in Zootaxa 4941 (4) on page 555, DOI: 10.11646/zootaxa.4941.4.5, http://zenodo.org/record/459568
A new nothotaxon in the genus Salix L. (Salicaceae)
No full textA new nothospecies is described in the genus Salix L. (Salicaceae) from the E. Spain: S. atroelaeagnos L. SERRA & M. B. CRESPO (S. atrocinerea S. elaeagnos). Morphological, ecological and chorological features of the new hybrid are reported, and a table showing diagnostic features of S. atroelaeagnos and its parental taxa, is also presented.This research was partly supported by DGICYT (PB91-0886), and the Investigation Agreement GV-0963/93 between Universidad de Alicante and Conselleria de Medi Ambient (Generalitat Valenciana)
Phlebotomine del Bosque Pico-Pico, Municipio Crespo, Estado Lara, Venezuela.
No full textEsta investigaci\uf3n de tipo descriptiva transversal, tiene como objetivo identificar algunos aspectos biol\uf3gicos de fleb\uf3tomos capturados en el Bosque Pico Pico del Municipio Crespo, Estado Lara, durante los a\uf1os 1992-1998 y elaborar un gui\uf3n t\ue9cnico para un documental del mismo. Para el logro de \ue9ste se realizaron capturas de fleb\uf3tomos con las trampas denominadas Shannon, CDC, manual y cebo humano. Se llevaron al laboratorio de Entomolog\ueda de la Unidad de Parasitolog\ueda M\ue9dica (UNIPARME) los espec\uedmenes capturados, para proceder a seleccionarlos de los dem\ue1s insectos, separando las hembras y los machos, aplic\ue1ndoseles la t\ue9cnica de los alcoholes, coloc\ue1ndoseles a cada uno de ellos sobre l\ue1minas portaobjetos, se cubrieron con laminillas o cubreobjetos para llevarlos al microscopio y clasificarlos. Fueron capturados 5.475 Lutzomyia (LU), predominando Lu. ovallesi, con 5.308 (96,95%), seguida de Lu. trinidadensis 62 (1,13%) y Lu gomezi 34 (0,62%). La investigaci\uf3n ha permitido conocer e identificar algunos g\ue9neros y especies de inter\ue9s m\ue9dico en el \ue1rea estudiada, con el prop\uf3sito de que los organismos de salud controlen y tomen las medidas preventivas necesarias para evitar la proliferaci\uf3n, ya que ha sido incriminado por otros investigadores como potencial vector antropof\uedlico de Leishmaniasis en este Municipio. Asimismo la producci\uf3n del documental contribuir\ue1 a mejorar la ense\uf1anza-aprendizaje del tema en estudio, por parte de la comunidad universitaria del Decanato de Medicina, y a nivel regional, nacional e internacional
Value Based and Intelligent Asset Management. Mastering the Asset Management Transformation in Industrial Plants and Infrastructures
No full textOverview The fundamental motivation of this book is to contribute to the future advancement of Asset Management in the context of industrial plants and infrastructures. The book aims to foster a future perspective that takes advantage of value-based and intelligent asset management in order to make a step forward with respect to the evolution observed nowadays. Indeed, the current understanding of asset management is primarily supported by well-known standards. Nonetheless, asset management is still a young discipline and the knowledge developed by industry and academia is not set in stone yet. Furthermore, current trends ¬in new organizational concepts and technologies lead to an evolutionary path in the field. Therefore, this book aims to discuss this evolutionary path, starting first of all from the consolidated theory, then moving forward to discuss: • The strategic understanding of value-based asset management in a company; • An operational definition of value, as a concept on the background of value-based asset management; • The identification of intelligent asset management, with the aim to frame a set of “tools” recommended to support the asset-related decision-making process over the asset lifecycle. The book compiles information gathered from interesting research and innovation efforts in projects that were relevant to this scope, especially considering the evidences from state of the art and current research trends of Physical Asset Management (PAM) and Operations & Maintenance (O&M) of industrial plants and infrastructures. Among the new trends, digitalization is enabling new capabilities for asset management, by means of the appearance of Cyber Physical Systems (CPS), and the subsequent issues resulting from building the digital twins of the physical assets. This may lead to a new era of intelligent asset management systems. At the same time, basic principles of asset management will continue to be relevant in the new era, helping to guide the development of digitalization programs in assets intensive companies, and being transformed along the evolutionary path towards the achievement of a more digitized and intelligent management. Relevant Topics One of the main challenges in the field of physical asset management is to enhance the identification and quantification of cost and value to evaluate the total cost and value of industrial assets throughout their lifecycle. These concepts have been widely discussed in literature, by offering different perspectives and also using plenty of terms partially overlapping or providing slightly different interpretations. Terms such as TCO (Total Cost of Ownership), LCC (Life Cycle Cost), WLC (Whole Life Cost), COO (Cost of Ownership) and, if extending to values, TVO (Total Value of Ownership) and Whole Life Value (WLV), are widely cited. If one surfs the Internet, a myriad of definitions and references can be found. This does not mean that the terms are well understood and widely adopted in practice. Considering the industrial applications of TCO and TVO, it is worth remarking that their benefits are clearly envisioned (e.g., the benefits of TCO can be considered cost control support, management strategy selection, quality optimization, and best cost-effectiveness management). However, in practice, some missing links can be pointed out with regard to their use: even though the need and desire to implement life cycle costing is very much talked about, there are a number of difficulties that limit a widespread adoption by industry. This is even more challenging when extending to value and, thus, to the whole life value, which is a more recent concept. Another relevant challenge addressed by physical asset management, is the assurance of the cost and value along the asset lifecycle. Henceforth, appropriate “tools” are required in order to assure that the value delivery from industrial assets (at reasonable cost) is effectively achieved and, when not, that proper decisions are activated with the aim to guarantee value delivery. In particular, proper “tools” should be used when planning in advance, and when monitoring and controlling the effective outcomes, to eventually activate re-planning in case of extant discrepancies with respect to expectations, thus leading to a continuous improvement of what is decided over the asset life cycle. Identification and quantification of value delivered by the assets is essential in all the cases. Structure of the Book The book is divided into four Parts. In Part 1, the first Chapter introduces fundamental concepts used in this book and presents a generalized framework providing relevant dimensions of value-based and intelligent asset management. The rest of the chapters in this Part offer a long-term perspective of asset management, dealing with topics like societal impact of investments in infrastructure assets, performance and economic impacts of investments in manufacturing plants, and long-term deterioration and renewal of assets. In Part 2 the value-based decision-making approach is stressed as an overall perspective for management of the assets over their life cycle, and also exemplified in real world specific cases. The concept of value, understood as presented in the first Chapter of this book, is operationalized to drive day to day management decisions and activities. Part 3 is dedicated to different advanced developments at the operational level. Different tools are presented to predict and/or to determine properly assets conditions leading to the release and execution of the maintenance activities. Predictive analytics are used to make predictions about assets future behavior. Many techniques from data mining, statistics, modeling, machine learning, and artificial intelligence can be applied to analyze current data to make predictions about future. The scalability of these emerging models, in this new scenario of individualised asset prognostics, is another topic discussed in this part of the book, trying to find a compromise between accuracy and computational power of these tools. Part 4 is devoted to new emerging processes, and new ideas that can be implemented by exploiting the power of new technologies such as cyber-physical systems that can certainly embed more intelligence and orientation to value in existing asset management systems. European Project and Worldwide Collaboration This book results from a collaboration of the authors, strengthened within the context of SustainOwner, ‘‘Sustainable Design and Management of Industrial Assets through Total Value and Cost of Ownership’’, a project sponsored by the EU Framework Programme Horizon 2020 and based on a knowledge sharing scheme involving many universities worldwide, from the Americas, Asia and Africa. Chapters Including Previously Published Research Results This book compiles a set of Chapters that were previously published as journal papers by the research groups involved in the Sustain Owner Project. The Editors would like to idenfify the correspondence between each book Chapter and the original research paper. According to Springer policy, the publishers were asked to provide their permissions for this work to be presented in its current form. The Editors thank the publishers for their cooperation making this book possible. The referred Chapters are: - Chapter 2: Heaton, J., Parlikad, A.K., “A conceptual framework for the alignment of infrastructure assets to citizen requirements within a smart cities framework,” Cities, Volume 90, pp 32-41, 2019. - Chapter 3: Roda I., Garetti M., “Application of a Performance-driven Total Cost of Ownership (TCO) Evaluation Model for Physical Asset Management”. In: Amadi-Echendu J., Hoohlo C., Mathew J. (eds) 9th WCEAM Research Papers. Lecture Notes in Mechanical Engineering. Springer, Cham, 2015, © Springer International Publishing Switzerland 2015, DOI 10.1007/978-3-319-15536-4. - Chapter 5: Roda, I., and M Macchi. “A framework to embed Asset Management in production companies.” Proceedings of the Institution of Mechanical Engineers, Part O: Journal of Risk and Reliability 232, no. 4: 368-378, 2018, © IMechE 2018, DOI: 10.1177/1748006X17753501. - Chapter 6: Srinivasan, R., Parlikad, A.K., “An approach to value-based infrastructure asset management,” Infrastructure Asset Management, Volume 4, Issue 3, pp 87-95, 2017. - Chapter 9: Olivencia Polo F.A , Ferrero Bermejo J. Gómez Fernández JF., Crespo Márquez A..,”Failure mode prediction and energy forecasting of PV plants to assist dynamic maintenance tasks by ANN based models”. Renewable Energy, Volume 81, pp 227-238. 2015. - Chapter 10: Liu, B., Liang, Z., Parlikad, A.K., Xie, M., Kuo, W., “Condition-based maintenance for systems with aging and cumulative damage based on proportional hazards model,” Reliability Engineering & System Safety, Volume 168, pp 200-209, 2017. - Chapter 11: C. Colace, L. Fumagalli, S. Pala, M. Macchi, N. R. Matarazzo, M. Rondi., “Implementation of a condition monitoring system on an electric arc furnace through a risk-based methodology.” Proceedings of the Institution of Mechanical Engineers, Part O: Journal of Risk and Reliability, Volume 229, Issue 4, August 2015, 327-342, 2015, © IMechE 2015, DOI: 10.1177/1748006X15576441. - Chapter 12: Erguido A., Crespo Márquez A.. Castellano E., Gómez Fernández JF.,”A dynamic opportunistic maintenance model to maximize energy- based availability while reducing the life cycle cost of wind farms”. Renewable Energy, Volume 114, pp 843-856. 2017. - Chapter 13: Negri E., L. Fumagalli, M. Macchi, “A Review of the Roles of Digital Twin in CPS-based Production Systems”, in Proceedings 27th International Conference on Flexible Automation and Intelligent Manufacturing, FAIM2017, Volume 11, 939-948, 27-30 June 2017, Modena, Italy, (Eds.) Marcello Pellicciari, Margherita Peruzzini, 2017, 2351-9789, © 2017 The Authors. Published by Elsevier B.V., doi: 10.1016/j.promfg.2017.07.198. - Chapter 14: Li, H., Salvador-Palau, A., Parlikad, A.K., “A Social Network of Collaborating Industrial Assets,” Proceedings of the IMechE Part O: Journal of Risk & Reliability, Volume 232, Issue 4, pp. 389-400, 2018, © IMechE 2018, DOI: 10.1177/1748006X18754975. - Chapter 15: Salvador-Palau, A., Liang, Z., Lutgehetmann, D., Parlikad, A.K., “Collaborative Prognostics in Social Asset Networks,” Future Generation Computer Systems, Volume 92, pp 987-995, 2019. - Chapter 16: Chekurov S, Metsä-Kortelainen S, Salmi M, Roda I, Jussila A., “The perceived value of additively manufactured digital spare parts in industry: an empirical investigation”. International Journal of Production Economics, 2015, 87-97, 2018, 0925-5273 © 2018 The Authors. Published by Elsevier B.V. T., DOI: 10.1016/j.ijpe.2018.09.008. Adolfo Crespo Márquez Marco Macchi Ajith Kumar Parlika
Supplementary material 52 from: Cardoso P, Crespo L, Silva I, Borges P, Boieiro M (2017) Species conservation profiles of endemic spiders (Araneae) from Madeira and Selvagens archipelagos, Portugal. Biodiversity Data Journal 5: e20810. https://doi.org/10.3897/BDJ.5.e20810
No full textDistribution of Typhochrestus madeirensis Crespo, 201
Masteria C. L. Koch 1873
No full textGenus Masteria L. Koch, 1873 Type species. Masteria hirsuta L. Koch, 1873 Diagnosis. See Passanha & Brescovit 2018: 8. Composition. For complete list of species see WSC 2021. M. chalupas n. sp., M. jatunsacha n. sp., M. lasdamas n. sp., M. machay n. sp., M. otongachi n. sp., M. papallacta n. sp., M. pasochoa n. sp. Distribution in the Americas. Costa Rica, Panama, Cuba, Puerto Rico, Martinique, Dominican Republic, St. Vincent, Jamaica, Trinidad, Tobago, Venezuela, Guyana, Colombia, Ecuador, Brazil and Peru.Published as part of Dupérré, Nadine, Tapia, Elicio, Quandt, Dietmar, Crespo-Pérez, Verónica & Harms, Danilo, 2021, From the lowlands to the highlands of Ecuador, a study of the genus Masteria (Araneae, Mygalomorphae, Dipluridae) with description of seven new species, pp. 538-568 in Zootaxa 5005 (4) on pages 539-540, DOI: 10.11646/zootaxa.5005.4.4, http://zenodo.org/record/514203
Adipicola leticiae Crespo 2017, new species
No full textAdipicola leticiae new species Figs 2A ̄J, 3ĀK, 4ĀD Type material. Holotype CNP-Inv 2 229 and twelve paratypes: CNP-Inv 2230, one articulated specimen, CNP-Inv 2231, one articulated specimen, CNP-Inv 2232, one articulated specimen and CNP-Inv 2233, nine articulated specimens, all attached to the skull of a sei whale Balaenoptera borealis. Type locality. 46° 10´S; 61° 50´W, off San Jorge Gulf, Argentina, from a depth of 104 m (Fig. 1). The collection date was July 21, 2010. Etymology. This species is dedicated to Leticia Mercante, the first author´s wife, for her invaluable support during many years. Diagnosis. The new species is characterized by the combination of the following characters: adult shell of medium size, up to 20 mm in length, elongate, fragile, ventral margin straight, distance from umbos to anterior shell margin about 30% of shell length; larval shell with prodissoconch 1 of about 175 µm and prodissoconch 2 with a size between 425 to 580 µm in length. Description. Shell, fragile, subequilateral, equivalve, subrectangular, with anterior end rounded, dorsalanterior margin anteriorly inclined, lunule not defined; dorsal-posterior margin straight, posterior end rounded, ventral margin straight; umbones prosogyrate, not in touch, placed at 30% of shell length measured from the anterior margin. Periostracum dark-reddish brown. Ligament extending along the dorsal-posterior margin for about 65% of posterior length. External surface smooth with irregular growth wrinkles, periostracal hair absent. Internally white, porcelaneous, pallial line complete, without sinus; hinge plate without teeth or crenulations below umbo or behind ligament; posterior adductor scar circular, anterior scar oval, slightly smaller; pedal retractors fused with the posterior byssal retractors just above the posterior scar; anterior retractor scars not observed; prodissoconch 1 about 175 µm, prodissoconch 2 size between 425 to 580 µm in length. No direct anatomical observations could be made on the dried remains. Morphological comparisons. The conchological features are compared with other Bathymodiolinae species that were or still are placed in Adipicola. Among these, A. osseocola Dell, 1987, has a more sharply pointed anterior shell margin and its ventral margin is softly arched rather than straight (Figs 5A ̄B). Adipicola pelagica (Forbes in Woodward, 1854) has a slightly arched ventral margin and a less forward-placed umbo (see B/L ratio) than A. leticiae n. sp.; it also attains a larger size of up to 36 mm in the holotype (Figs 5 C̄F). The taxonomic position of A. projecta (Verco, 1908) is contentious. Originally described as Modiola Lamarck, 1801, Lamprell & Healy (1998) included it in Idas, Dell (1987) placed it in Adipicola, and Huber (2010) suggested a new genus for this species. Type material was not found in the cabinets of SAMA. The original description and illustration by Verco (1908, p. 195, pl.13, figs. 12̄13) suggest an Adipicola species distinguishable from our new species by a less elongate shell. Although the ventral border is nearly straight and almost parallel with the dorsal margin, both the shell length and ligament groove are shorter than in A. leticiae n. sp. “ Adipicola ” longissima Thiele & Jaeckel, 1931, is a regionally rather restricted species (Pante et al. 2012) that is predominantly attached to Nypa fruticans nuts, in localities where palm trees grow (Philippines, Indonesia and Solomon Islands mainly). Genetically, it clusters with “ Adipicola ” simpsoni Marshall, 1900. Therefore, Thubaut et al. (2013b) proposed a new generic name, “Nypamodiolus” for the two species. Unfortunately, the introduction of the genus name does not fulfil the requirements of the ICZN code (especially Art. 13) and is unavailable, therefore. The types of “ A. ” longissima are smaller than the present species and possess a pellucid shell with a sharper, anteriorly more elongated and overall arched shell outline (Figs 5 ĪJ). “ Adipicola ” simpsoni is characterized by a more elliptical, posteriorly expanded shell (Figs 6A ̄D) in contrast to the more subrectangular shape of our species. This is also reflected by different H/L and B/L ratios (Table 2). The holotype of Gigantidas crypta (Dall, Bartsch & Rehder, 1938), previously placed in Adipicola by Dell (1987), is only about 4 mm long and has a slightly elevated and much forward-placed umbo. The shell outline is oval with a smaller posterior than anterior end and a slightly concave ventral margin. Much larger specimens of up to 52.9 mm were reported from Japan (Habe 1977; Habe in Koyama et al. 1981; Kurozumi 2000). According to genetic studies, the species must be placed in the genus Gigantidas Cosel & Marshall, 2003, related to G. gladius Cosel & Marshall, 2003 and the “ Bathymodiolus ” childressi group (Thubaut et al. 2013a). Huber (2010) excluded Prashad’s Modiolus dubius from the genus Idas and placed it within Adipicola due to the absence of periostracal hairs and the non-glossy interior aspect. Our examination of the holotype and paratype (ZMA.MOLL.135265, ZMA.MOLL.135270) (Figs 5 ḠH) suggests otherwise. The holotype, from Rotti Island, Indonesia, shows a rhomboidal shell outline with conspicuous periostracal hairs over posterior portions of the shell. In addition, it shows a well-developed concentric sculpture and elongate ligament from the beak to virtually the end of the dorsal posterior margin. These morphological features are more characteristic of Idas. Species Material Length (mm) Height (mm) B (mm) B/L H/L Adipicola leticiae Holotype 20 7 5 23,9 33,7 Paratype 1 18 6 4 24,2 35,1 Paratype 2 17 6 4 25,2 36,0 Paratype 3 16 5 5 29,2 31,1 Paratype 4 16 6 5 29,0 35,8 Paratype 5 13 5 4 27,7 37,0 Paratype 6 9 4 2 22,8 39,3 Paratype 7 11 4 3 26,8 40,6 Paratype 8 10 4 3 24,0 38,9 Paratype 9 9 4 3 28,3 41,2 Paratype 10 9 3 2 27,1 38,5 Paratype 11 8 3 2 25,5 39,3 Paratype 12 9 4 2 21,1 42,5 A. osseocola * Holotype 24 9 6 24,6 37,3 Paratype 1 28 9 8 28,1 32,7 Paratype 2 24 9 6 26,4 36,2 Paratype 3 19 8 5 24,3 39,7 A. pelagica * Syntype 1 36 17 12 32,0 46,1 Syntype 2 32 14 10 31,0 44,9 “ A. ” simpsoni* Syntype 1 23 10 4 19,6 46,2 Syntype 2 21 10 3 15,0 45,9 Syntype 3 17 7 3 16,4 42,7 North Sea 20 9 4 21,4 44,4 Shetlands 19 8 4 19,4 42,5 Shetlands 18 8 4 19,7 43,8 T. pacifica * Holotype 27 11 6 22,6 42,6 Japan 150 m 26 12 8 32,4 45,3 Japan 150 m 15 7 4 25,0 48,0 Dell (1987) suggested that the types of A. iwaotakii (Habe, 1958) could belong to larger specimens of A. crypta. However, the genetic analysis by Thubaut et al. (2013b) places this species within Gigantidas and close to the Bathymodiolus “childressi group”. Terua arcuatilis Dell, 1995, differs from A. leticiae n. sp. by having an arched rather than straight ventral margin, a longer ligament and a larger and more elongate shell (Figs 6 ĒF). Terua pacifica (Dall, Bartsch & Rehder, 1938) (Figs 6 ḠH) differs from the new species by having an arched ventral margin and a less elongate shell. Its collection sites in the Pacific off Oahu, Hawaii and southern Japan (Dell 1987; Habe 1977) also suggests that these are different species.Published as part of Crespo, Enrique, 2017, First record of the genus Adipicola (Mollusca: Bivalvia: Mytilidae) and description of a new species from the Argentine SW Atlantic Ocean, pp. 325-338 in Zootaxa 4318 (2) on pages 329-332, DOI: 10.11646/zootaxa.4318.2.6, http://zenodo.org/record/88684
Galaxy cluster mass density profile derived using the submillimetre galaxies magnification bias
No full textContext. The magnification bias is a gravitational lensing effect that produces an increase or decrease in the detection probability of background sources near the position of a lense. The special properties of the submillimetre galaxies (SMGs; steep source number counts, high redshift, and a very low cross-contamination with respect to the optical band) makes them the optimal background sample for magnification bias studies.
Aims. We want to study the average mass density profile of tens to hundreds of clusters of galaxies acting as lenses that produce a magnification bias on the SMGs, and to estimate their associated masses and concentrations for different richness ranges. The cluster richness is defined as R = L200/L* with L200 as the total r-band luminosity within the radius r200.
Methods. The background sample is composed of SMGs observed by Herschel with 1.2 < z < 4.0 (mean redshift at ∼2.3) while the foreground sample is made up of galaxy clusters extracted from the Sloan Digital Sky Survey III with photometric redshifts of 0.05 < z < 0.8 (mean redshift at ∼0.38). Measurements are obtained by stacking the SMG–cluster pairs to estimate the cross-correlation function using the Davis-Peebles estimator. This methodology allows us to derive the mass density profile for a wide range of angular scales, ∼2 − 250 arcsec or ∼10 − 1300 kpc for z = 0.38, with a high radial resolution, and in particular to study the inner part of the dark matter halo (< 100 kpc). In addition, we also divide the cluster sample into five bins of richness and we analyse the estimated cross-correlation data using different combinations of the most common theoretical mass density profiles.
Results. It is impossible to fit the data with a single mass density profile at all scales: in the inner part there is a clear excess in the mass density profile with respect to the outer part that we interpret as the galactic halo of the big central galaxy. As for the outer part, the estimated average masses increase with richness from M200c = 5.8 × 1013 M⊙ to M200c = 51.5 × 1013 M⊙ (M200c = 7.1 × 1013 M⊙ for the total sample). With respect to the concentration parameter, its average also increases with richness from C = 0.74 to C = 1.74 (C = 1.72 for the total sample). In the small-scale regions, the obtained average masses fluctuate around M200c = 3 − 4 × 1013 M⊙ with average concentration values of around C ∼ 4.
Conclusions. The total average masses are in perfect agreement with the mass–richness relationship estimated from the cluster catalogue. In the bins of lowest richness, the central galactic halo constitutes ∼40% of the total mass of the cluster and its relevance decreases for higher richness values. While the estimated average concentration values of the central galactic halos are in agreement with traditional mass–concentration relationships, we find low concentrations for the outer part. Moreover, the concentrations decrease for lower richness values, probably indicating that the group of galaxies cannot be considered to be relaxed systems. Finally, we notice a systematic lack of signal at the transition between the dominance of the cluster halo and the central galactic halo (∼100 kpc). This feature is also present in previous studies using different catalogues and/or methodologies, but is never discussed
A new taxonomic arrangement in Linaria sect. Supinae (Antirrhineae)
No full textComo resultado de un estudio macromorfológico y de los caracteres seminales de Linaria benitoi Fern. Casas, endemismo de los alrededores del Cabo de Gata (SE Península Ibérica) y de los táxones del grupo de L. oblongifolia, se discuten la variabilidad y las relaciones morfológicas de este conjunto de plantas. Así, se propone la siguiente nueva combinación: Linaria oblongifolia subsp. benitoi (Fern. Casas) L. Sáez, M.B. Crespo, Juan & M. Bernal, comb. & stat. nov.As a result of a study of macromorphological and seed features ofLinaria benitoi Fern. Casas, endemic to Cabo de Gata (SE Iberian Peninsula) and taxaincluded in the L. oblongifolia group, the variability and morphological relationships are discussed. The following new combination is proposed: Linaria oblongifolia subsp.benitoi (Fern. Casas) L. Sáez, M.B. Crespo, Juan & M. Bernal, comb. & stat. nov
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