10,683 research outputs found
Heleobia deserticola Collado, 2015, sp. nov.
No full textSpecies Heleobia deserticola sp. nov. Holotype. (MZUC 43067, Fig. 1 A). Collected by G.A. Collado from Aguada de Chorrillos, Chile (28 November 2011). Holotype measurements: SL 4.41 mm, SW 2.10 mm, AL 2.00 mm, AW 1.21 mm. Paratypes. (MZUC 43068–43077, Fig. 1 B – K). Snails from Aguada de Chorrillos, Chile, collected with the holotype by G.A. Collado. Morphometric data of the paratypes (n = 10): SL: 4.01 ± 0.31 (3.40 – 4.40); SW: 1.99 ± 0.13 (1.80 – 2.20); AL: 1.76 ± 0.19 (1.40 – 2.00); AW: 1.22 ± 0.15 (1.00 – 1.40); SW/SL: 0.50 ± 0.02 (0.46 – 0.53); AL/SL: 0.44 ± 0.04 (0.35 – 0.47); AW/AL: 0.07 ± 0.08 (0.61 – 0.86). Description. Shell small, elongate – conic, thin, transparent, smooth, suture depth, closed umbilicus (imperforate). Adults with 6 to 7 convex whorls. Aperture ovate, outer lip thin. Operculum corneous, ovate, flat, thin, light brown, paucispiral (Fig. 1 L). Foot, mantle and tentacles gray, head black, snout white, visceral sac yellow to light brown. Penis elongated, white – grayish; proximal portion with a wide base, with 5 – 6 cup – shaped apocrine glands on the border (Fig. 1 M – O); distal portion tapers to an elongated conical tip. One or two additional aprocrine glands are located in the convex side of the penis. Reproductive biology. This species is gonochoric, with direct development. Several individuals sampled in Aguada de Chorrillos bore single egg capsules attached to the shells with an embryo or a juvenile snail inside, depending on the stage of development (Fig. 1 P, Q). Type locality. Aguada de Chorrillos, a small spring located at the Pacific coast in the Atacama Desert, northern Chile (Fig. 2 A, B), 5 m above sea level. The site is located several kilometers north of the mouth of the Copiapó River, which is separated from it by an arid desert. The water of the spring arises from the walls of a canyon about 10 m high that form pools (Fig. 2 B) at the bottom of the ravine which eventually drains to the sea. Distribution and habitat. The snails were collected from the small puddles of water (c. 10 cm depth) on soft substrate in the spring Aguada de Chorrillos. In November 2011 individuals of all size ranges from this locality were sampled. Etymology. The name is a compound noun meaning desert dweller; it is derived from the area of origin of the new species. Remarks. Heleobia deserticola sp. nov. can be distinguished from the other species of the genus by its particular penis morphology (Fig. 1 M – O), including the wide portion of the base of the organ, several apocrine glands located around of the complete margin of the base and the additional aprocrine glands located in the convex side of the central portion of the organ. All these characters as a whole differentiate this species from other species of the group whose penis morphology is known (e.g. Hubendick 1955; Gaillard & de Castellanos 1976; Hershler & Thompson 1992; Collado et al. 2011; Ovando & De Francesco 2011; Collado 2012; Collado et al. 2013). The sister group of this species is an undescribed population from Carrera Pinto, northern Chile (Collado et al. 2013), a spring separated from Aguada de Chorrillos by over 100 km of arid desert. I did not treat these populations as conspecific because of differences in shell and penis morphology (Fig. 1 R, S). The shell of the snails from Carrera Pinto has a band in the growing whorls not present in Heleobia deserticola sp. nov. while the penis has aprocrine glands only on the convex side of the base. The snails from Aguada de Chorrillos and Carrera Pinto belong to the clade including Heleobia transitoria (Biese, 1947), and a population from Quebrada El León in the Atacama Desert. These snails are not very close to Heleobia opachensis (Biese, 1947), Heleobia loaensis (Biese, 1947), Heleobia chimbaensis (Biese, 1944), Heleobia ascotanensis (Courty, 1907) and Heleobia atacamensis (Philippi, 1860) (Collado et al. 2013) described from northern Chile. Comparison with the other Heleobia species. Heleobia deserticola sp. nov. fits well the morphological characteristics of the shell and penis of the genus as defined by Hershler & Thompson (1992), with the male copulatory organ possessing aprocrine glands. Additionally, the new species was also placed in the genus Heleobia based on a molecular phylogenetic analysis (Collado et al. 2013). Of the nominal species of Heleobia from northern Chile, Heleobia deserticola sp. nov. is the third representative described from the coast of the Atacama Desert after H. chimbaensis and H. transitoria. The shell of the new species is little differentiated morphologically from other regional congeners [see Collado et al. (2011), Collado (2012), Collado et al. (2013) for comparative purposes]. The closed umbilicus of the new species resembles that of H. atacamensis, H. loaensis, H. opachensis and H. transitoria. Heleobia deserticola sp. nov. has direct development, similar to the reproductive strategy employed by H. chimbaensis, Heleobia parchappii (d’Orbigny, 1835), Heleobia miaulis (Marcus & Marcus, 1965) and Heleobia guaranitica (Doering, 1885) (Marcus & Marcus 1965; Gaillard 1973; Cazzaniga 1982; Collado & Méndez 2011); other species of Heleobia have indirect development (see Collado & Méndez 2011). The black pigmentation of the head of H. deserticola sp. nov. differs from that of Heleobia neveui (Bavay, 1904) because the latter species in general is less pigmented (Hubendick 1955). The gray pigmentation of the tentacles of H. deserticola sp. nov. differs from that of Heleobia compacta (Haas, 1955), Heleobia cumingii (d’Orbigny, 1835) and Heleobia aperta (Haas, 1955) from Lake Titicaca, which are almost black over all these structures (Hubendick 1955). Heleobia is divided into two groups on the basis of the size (Biese 1944, 1947). The group of Heleobia hatcheri (Pilsbry, 1911), which contains small species, with 4–5 shell whorls, and the group of H. parchappii, which contains larger forms, with 5–8 whorls. The new species belongs to the second group; adult individuals can reach up to seven whorls. Heleobia deserticola sp. nov. is only known from the spring of Aguada de Chorrillos (Collado et al. 2013; present study). This oasis is an extremely small restricted habitat, surrounded by an arid desert and facing the sea. In northern Chile, several localities with populations of Heleobia are subjected to anthropogenic pressures, pollution or water scarcity (Collado 2012). Recently, two species of Heleobia in the Atacama Desert, H. atacamensis and H. chimbaensis were declared Critically Endangered and Vulnerable, respectively (Collado 2013 a, b), according to the list of the threatened species of the Ministerio del Medio Ambiente, República de Chile. It is clear that some biological and population parameters need to be estimated by monitoring Heleobia deserticola sp. nov. because any alteration to the biotope could affect the population of these snails in Aguada de Chorrillos. There are currently no conservation measures for this particular place.Published as part of Collado, Gonzalo A., 2015, A new freshwater snail (Caenogastropoda: Cochliopidae) from the Atacama Desert, northern Chile, pp. 445-449 in Zootaxa 3925 (3) on pages 445-446, DOI: 10.11646/zootaxa.3925.3.9, http://zenodo.org/record/24227
Pristina terrena Collado & Schmelz 2000
No full textPristina terrena Collado & Schmelz, 2000 Pristina terrena Collado & Schmelz, 2000: 513 –514, figs 8, 9. Material examined. Five specimens, sexually immature, IG 327183 - 23 to IG 327183 - 27; one specimen with budding zone and primordial testes in VIII and primordial ovaries in IX. Cusuco National Park, Honduras, [15.505813 -88.21473, 15.506299 -88.23704, 15.522537 -88.27598, 15.513245 -88.28807, 15.526152 -88.27662], respectively 2061 m, 1457 m, 1558 m, 1468 m and 1587 m asl, M. Jocque 07/07/ 2013 to 06/08/ 2013. Further 6 specimens in the 3 rd author's collection, [15.52425 -88.28853, 15.50731 -88.29428], respectively 1659 m, 1347 m asl, M. Jocque 07/08/ 2006. Description. Body length 1–2 mm, diameter 0.1–0.14 mm. Segment number of complete specimens 17–24 (17, 17, 19, 20, 24). Budding zone present in two specimens, between chaetae of XVII and XVIII (specimen with 24 segments) or XIV and XV (specimen with 20 segments). Posterior zooids with 6 or 7 segments. Dorsal bundles with 1 or 2 elongate, serrate hairs and 1 or 2 simple-pointed needles; more often just one hair and one needle per bundle. Hairs up to or more than three times as long as body diameter, increasing from II to VII to maximum length. From VII on, hair length 240–340 Μm, varying among bundles, segments and specimens. Hair length slightly reduced in hindmost 2 segments, not as much as in foremost segments. Hairs c. 2 Μm thick at base, tapering continuously ectad, less than 1 Μm thick at tip; serration distinct at x 250 magnification on convex side of bent chaeta, serration 'teeth'> 1 Μm apart, distance between teeth wider at base than towards the tip. Needles tightly attached to proximal hair shaft and not always well-distinguished, c. 40 Μm long, straight without nodulus, about 1.5 Μm thick in ental 4 / 5, strongly thinning out in ectal 1 / 5, bent backwards towards hair, ectal tip parallel to hair shaft. Tip simple-pointed at x 1000 magnification but somewhat widened. Chaetal follicle conspicuous, diameter c. 15 Μm. Ventral chaetae all alike, 37–40 Μm long, bifid, nodulus as a faint swelling at c. 2 / 5 from distal tip, teeth short, about 1.5 Μm long, upper tooth minutely shorter and thinner than lower; chaetae straight distally, only teeth bent here; proximal third of chaetae bent in opposite direction of teeth; in II 6–9 chaetae per bundle, varying among specimens, 5–7 in II–XI, in posterior body half 3–5 per bundle, decreasing posteriad from 5 to 4 or from 4 to 3. Prostomium without proboscis, rounded, longer than wide in one specimen, wider than long in all others (c. 50–70 Μm long and 70–80 Μm wide). Prostomial epithelium with several bilateral-symmetrical protuberances projecting entad into prostomial lumen, protuberances larger ventrally near mouth opening than dorsally, absent mid-ventrally. Epidermal gland cells seen in some specimens, laterally of and level to dorsal chaetal bundles. Pharyngeal pad with tenuous protractor and retractor muscles. Pharyngeal glands in separate packages at 3 /4, 4/ 5, and 5 / 6, enclosing septa. Gut diameter abruptly widened behind septum 6 / 7, from c. 80 to 180 Μm, not constricted in following segment (i.e. no stomach distinguishable), no cells with intracellular 'stomachal' canals distinguished. Dorsal blood vessel large in VI (and V), not seen posteriorly. Three simple and unbranched commissural vessels observed near 2 /3, 3/4, 4/ 5. Pars tumida of midgut present. First nephridium in VII, unpaired. Most of following nephridia unpaired as well, on alternating sides, 10 nephridia counted altogether in a specimen with 20 segments. Nephrostome present, on anterior face of 6 / 7 ventro-laterally; wide and densely packed loops in all of VII, dorsally and ventrally. Nephropores ventral, anterior to ventral chaetal bundles. Coelomocytes spherical, diameter 6–10 Μm, with glassy irregular texture, vesicles not distinguished. Remarks. Our specimens agree in all diagnostic details with Pristina terrena Collado & Schmelz, 2000. Noteworthy are the long serrate hairs that increase in length from II to VII and vary in length from VIII on, seemingly simple-pointed needles without nodulus and a tapering distal fifth bent towards the hair, and ventral chaetae that differ very little in size and shape between anterior and posterior bundles, with short and more or less equal-sized teeth. Further similiarities of P. terrena extend to body size, segment number, blood vessels, blood commissurals, and location of the first nephridium. The only difference of possible taxonomic importance is the widening of the intestine, described as gradual in P. t errena and abrupt in our specimens. However, the latter is a fixation artefact due to strong contraction of the animals when fixed in ethanol. We reinvestigated non-type ethanol-preserved reference specimens of the original series from Collado's personal collection (see Collado & Schmelz 2000), and there the intestine shows an abrupt widening as well. A stomach was not seen in the Honduras material and is absent in P. t e r ren a as originally described. The coelomocyte granulation, conspicuous in living specimens, is no longer seen in ethanol-preserved material, but the non-type reference material (see above) has the same irregular glassy texture without distinct vesicle; such a pattern can be indicative of coarse refractile granules as seen in live P. t errena. The same correspondence has been observed in enchytraeids (comp. Rota 2013). This is the first record of P. t er re n a after the original description from rain forest soils near Manaus, Brazil. The distance of approx. 3500 km between the two localities may suggest an extremely good dispersal ability of the species, but P. t e r re n a may also be common and widespread in Central and South America. Records of Pristina in Central and South America are scarce and mostly restricted to limnic, river and groundwater habitats, where this soil-dwelling species may not occur. Pristina species were regularly found in a non-flooded ("terra firme") primary forest plot of Amazonia, with six species described or recorded so far (Collado & Schmelz 2000, 2001, 2002; Augustsson 2001) and also in the Mata Atlântica of the Brazilian State Paraná (Römbke et al. 2005).Published as part of Schmelz, Rüdiger M., Jocque, Merlijn & Collado, Rut, 2015, Microdrile Oligochaeta in bromeliad pools of a Honduran cloud forest, pp. 508-526 in Zootaxa 3947 (4) on pages 518-519, DOI: 10.11646/zootaxa.3947.4.3, http://zenodo.org/record/24261
Heleobia carcotensis Collado, Valladares & Méndez, 2016, sp. nov.
No full textHeleobia carcotensis sp. nov. Figure 2 Holotype. (MZUC – UCCC 43802, Fig. 2 A). Collected by G.A. Collado from Spring 1 in the Carcote saltpan, Chile (28 November 2011). Shell measurements SL 4.4 mm, SW 2.0 mm, AL 1.7 mm, AW 1.1 mm. Paratypes. (MZUC – UCCC 43803–43807, Fig. 2 B–F). Snails from Spring 1 in the Carcote saltpan, Chile, collected with the holotype by G.A. Collado. Shell measurements: (n= 5): SL: 4.52 ± 0.35 (4.20–4.90); SW: 1.98 ± 0.11 (1.90– 2.10); AL: 1.80 ± 0.20 (1.60–2.10); AW: 1.16 ± 0.15 (0.99–1.30); SW/SL: 0.44 ± 0.01 (0.43–0.45); AL/SL: 0.40 ± 0.01 (0.38–0.42); AW/AL: 0.64 ± 0.05 (0.59–0.70). Etymology. Specific name refers to the Carcote saltpan. Description. Shell elongate conic, periostracum light brown, umbilicus absent. Teleoconch with six shell whorls and fine axial striae. Aperture ovate, slightly triangular or strongly angled adapically; parietal margin of the lip slightly thickened, outer lip thin. Protoconch (Fig. 2 G) slightly differentiated from teleoconch. Operculum paucispiral, thin, ovate, grayish around a central light brown region, nucleus eccentric (Fig. 2 H–I). Radula shown in Fig. 2 J–O. Median cusps of central radular teeth elongate, distally pointed, lateral cusps five-six (n= 20, 10 teeth from voucher V 1–2, five from V 1–8, five from V 1–8), one basal cusp (n= 30, 10 teeth from each of the vouchers), basal tongue of central radular teeth V-shaped, lateral teeth with two-three cusps (n= 18, 10 teeth from voucher V 1–2, six from V 1–8, two from V 1–10) on inner and three-five cusps (n= 30, 10 teeth from voucher V 1 –2, 10 from V 1 –5, 10 from V 1–8) on outer side, central cusp larger and pointed. Inner marginal teeth having 19–22 cusps (n= 10, six from voucher V 1–2, four from V 1–8), outer marginal teeth with 29–42 cusps (n= 3, voucher V 1–2). Foot gray, propodium white, head brown-black with less pigment centrally, snout black, distal lips white. Tentacles black with a brow, central axial band and a gray horizontal band near the base (Fig. 2 P–R). Penis gray with a row of three - five apocrine glands (n= 3) along the outer edge (Fig. 2 S–U); distal portion with a terminal papilla. Distribution and habitat. Spring 1 in the Carcote saltpan (3688 m above sea level). This saltpan is a closed basin in the Chilean Altiplano. Spring 1 is a thermal water body (21 °C) that forms a rectangular pool that discharges to the central zone of the saltpan (Fig. 1). Snails were found on rocks and aquatic vegetation. Remarks. The morphology of the penis of this new species conforms to Heleobia as currently diagnosed (Hershler & Thompson 1992). The shell morphology differs from regional congeners in the form of the aperture (strongly angled adapically) and in the general ground plan of the penis [see Hubendick (1955), Collado et al. (2011 a), Collado et al. (2013) and Collado (2015) for comparisons]. Heleobia carcotensis appears to be closely related to the Heleobia snails from Colpa, Parinacota and Isluga in the Chilean Altiplano and H. opachensis from the Atacama Desert.Published as part of Collado, Gonzalo A., Valladares, Moisés A. & Méndez, Marco A., 2016, A new species of Heleobia (Caenogastropoda: Cochliopidae) from the Chilean Altiplano, pp. 277-280 in Zootaxa 4137 (2) on pages 278-279, DOI: 10.11646/zootaxa.4137.2.8, http://zenodo.org/record/26388
205. Collado, Diego ( ?— 1638)
No full textIwao Seiichi, Sakamato Tarō, Hōgetsu Keigo, Yoshikawa Itsuji, Kobayashi Tadashi, Kanazawa Shizue. 205. Collado, Diego ( ?— 1638). In: Dictionnaire historique du Japon, volume 3, 1975. Lettre C. p. 145
Dictionarium siue Thesauri Linguae laponicae compendium / Compositum & sacre de Propaganda Fide Congregationi dicatum a frate Didaco Collado Old. Predicaturum ...
No full textContiene : Additiones ad Dictionanum laponicum / Auctore Fr. Didaco Collado Ordinis Praedicatorum, p. 159-355Text a dues col.Sign. : A-Z4, Aa-Vv4, Xx
Historia general de España
No full textPort. con grabLas h. de grab. son cartas facs. de reyes, lám. de sellos reales y de paisajes, personajes de la época, mapas y gráficosContiene : T.I. Reinado de Carlos III / por Manuel Danvila y Collado (VIII, 438 p., [13] h. pleg., [7] h. de grab.) - t.II. Reinado de Carlos III/ por Manuel Danvila y Collado (629 p., [17] h. pleg., [3] h. de grab.) - t.III. Reinado de Carlos III/ por Manuel Danvila y Collado (694 p., [23] h. pleg., [6] h. de grab.) - t.IV. Reinado de Carlos III/ por Manuel Danvila y Collado (525 p., [4] h. pleg., [1] h. de grab.) - t. V. Reinado de Carlos III/ por Manuel Danvila y Collado (545 p., [16] h. pleg., [3] h. de grab.) - t. VI Reinado de Carlos III/ por Manuel Danvila y Collado (629 p., [2] h. de grab. pleg.)T. VI con índice general de nombres propio
BClass: A Bayesian Approach Based on Mixture Models for Clustering and Classification of Heterogeneous Biological Data
No full textBased on mixture models, we present a Bayesian method (called BClass) to classify biological entities (e.g. genes) when variables of quite heterogeneous nature are analyzed. Various statistical distributions are used to model the continuous/categorical data commonly produced by genetic experiments and large-scale genomic projects. We calculate the posterior probability of each entry to belong to each element (group) in the mixture. In this way, an original set of heterogeneous variables is transformed into a set of purely homogeneous characteristics represented by the probabilities of each entry to belong to the groups. The number of groups in the analysis is controlled dynamically by rendering the groups as 'alive' and 'dormant' depending upon the number of entities classified within them. Using standard Metropolis-Hastings and Gibbs sampling algorithms, we constructed a sampler to approximate posterior moments and grouping probabilities. Since this method does not require the definition of similarity measures, it is especially suitable for data mining and knowledge discovery in biological databases. We applied BClass to classify genes in RegulonDB, a database specialized in information about the transcriptional regulation of gene expression in the bacterium Escherichia coli. The classification obtained is consistent with current knowledge and allowed prediction of missing values for a number of genes. BClass is object-oriented and fully programmed in Lisp-Stat. The output grouping probabilities are analyzed and interpreted using graphical (dynamically linked plots) and query-based approaches. We discuss the advantages of using Lisp-Stat as a programming language as well as the problems we faced when the data volume increased exponentially due to the ever-growing number of genomic projects.
Palaeodiets of humans and fauna at the Spanish Mesolithic site of El Collado
No full textThe first human stable isotope results from the Spanish Levant, from the Mesolithic (ca. 7500 BP, Mesolithic IIIA phase) site of El Collado (near Oliva, Valencia) provide evidence for the consumption of marine protein by humans, estimated at approximately 25% of the dietary protein for some individuals. Isotopic analysis of human remains from other coastal Mesolithic sites in Europe, particularly along the Atlantic coast, also shows significant consumption of marine foods, but the amount of marine food consumed by the El Collado humans was much less than at those sites. This may be because of a different dietary adaptation or because the Mediterranean is much less productive than the Atlanti
Merodon bicolor Gil Collado
No full text<i>Merodon bicolor</i> Gil Collado <p>Material examined. 1♂, A Fontela, near A Tara, 25.v.2012, leg. G.E. Rotheray [NMS].</p>Published as part of <i>Ricarte, Antonio, Rotheray, Graham E., Lyszkowski, Richard M., Hancock, E. Geoffrey, Hewitt, Stephen M., Watt, Kenneth R., Horsfield, David & Macgowan, Iain, 2014, The syrphids of Serra do Courel, Northern Spain and description of a new Cheilosia Meigen species (Diptera: Syrphidae), pp. 401-422 in Zootaxa 3793 (4)</i> on page 411, DOI: 10.11646/zootaxa.3793.4.1, <a href="http://zenodo.org/record/225393">http://zenodo.org/record/225393</a>
Essai de grammaire japonaise / composé par M. J. H. Donker Curtius,... ; enrichi d'éclaircissements et d'additions... par M. le Dr J. Hoffmann,... ; traduit du hollandais, avec de nouvelles notes extraites des grammaires des PP. Rodriguez et Collado, par Léon Pagès
No full textComprend : Notes extraites des grammaires des PP. Rodriguez et Collado...Appartient à l’ensemble documentaire : FranceJp0Contient une table des matièresAvec mode text
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