496 research outputs found
Diogenion vermifactus Codreanu, Codreanu & Pike 1960
No full textDiogenion cf. vermifactus Codreanu, Codreanu & Pike, 1960 Figures 3–5 Diogenion vermifactus Codreanu, Codreanu & Pike, 1960: 439–441, fig. 1 (Red Sea, infesting Diogenes senex); Codreanu et al. 1965: 225 (mention); Codreanu 1967: 209 (mention); Bourdon 1980: 243 (list); Adkison 1990: 34–40, fig. 3 (after Codreanu et al. 1960); Kensley 2001: 226 (list); McDermott et al. 2010: 12 (list), 28 (mention). unidentified entoniscid Williams et al. 2019: 85, 97, 101, 104 (Philippines, infesting Calcinus gaimardii and Calcinus minutus). Material examined. Philippines: Female (19.4 mm) (USNM 1522331), infesting Calcinus gaimardii (3.5 mm SL), inhabiting unknown shell, Lalaguna Beach, Puerto Galera, 13°31’32″ N, 120°58’8″ E, coll. J.D. Williams, 3 March 1999. Female (6.9 mm), male (2.5 mm), and multiple larvae on two SEM stubs (USNM 1522332), infesting Calcinus pulcher (3.5 mm SL), inhabiting unknown shell, Batangas, Anilao, 13°42’14.5″ N, 120°52’45.3″ E, coll. J.D. Williams, 13 February 1999. Female (19.0 mm) (USNM 1522333), infesting C. gaimardii (6.0 mm SL), inhabiting unknown shell, Mabayo, Bataan, 14°44′00″ N, 120°16′32″ E, coll. J.D. Williams, 21 February 1999. Female (10.5 mm) and male (2.5 mm) (USNM 1522334), infesting Calcinus minutus (2.7 mm SL), inhabiting unknown shell, host also with bopyrid parasite (Bopyrissa marami) in right branchial chamber, Coco Beach, Puerto Galera, 13°31′32″ N, 120°57′44″ E, coll. J.D. Williams, 14 January 1999 (indicated as 12 January 1999 in Williams et al. 2019). Female (15.2 mm) and male (no measurement) (ZRC 2022.0962), infesting C. gaimardii (4.4 mm SL), inhabiting unknown shell, Lalaguna Beach, Puerto Galera, 13°31′32″ N, 120°58′8″ E, coll. J.D. Williams, 17 June 2000. Female (4.6 mm) and male (1.5 mm) (ZRC 2016.0411) from male Pagurojacquesia polymorpha (2.3 mm), inhabiting unknown shell, west off Panglao Island, Station CP2334, 09°37.5′00″ N, 123°40.2′00″ E (see de Forges et al., 2009), beam trawl, 631–659 m, sandy bottom, Panglao Expedition 2005, 22 May 2005. Hosts: Calcinus gaimardii, Calcinus minutus, Calcinus pulcher, Diogenes senex (type host of Diogenion vermifactus), Pagurojacquesia polymorpha. Description of female: Female in abdomen of host surrounded by host induced sheath; positioned with anterior end at posterior end of host and ventral surface of parasite directed to dorsal surface of host (fig. 3A, B). Host tube with exit pore near first pereopod of host (fig. 3B). Head bilobed, with elongated oval lobes (figs. 3C, 4A). Antennulae fused into large, flattened, pad-like structure. Antennae as thin digitate extensions (fig. 4A). Maxillipeds small, round (fig. 4A). Pereon without ovarian processes. Oostegites 1–7 present, progressively smaller posteriorly; oostegite 1 normally folded back posterior to head and surrounded by other oostegites (fig. 3A, B), large and flap-like with rounded anterior end and inner surface lined with pleat-like folds (fig. 3C). Pereopods 1–7 present; pereopods segmented, each with small dactylus present on distal end; scales present (fig. 4B, C). Pleon slender, with five pleomeres; small heart in pleomere 1; pleopods, pleural lamellae and uropods absent (fig. 4D). Brood development synchronous; all larvae at same stage of development. Description of male: Male found within brood chamber of female. Only one male accompanying female (when present). Body curved ventrally, pale in color with few spots of pigmentation (fig. 4E, F). Head small and rounded. Pair of elongated conical antennulae extending beyond margin of head, terminally setose; pair of conical antennae slightly larger than antennulae each with tuft of terminal setae (fig. 4G). Oral cone with mandibles and maxilliped present (fig. 4G). Seven pereomeres; pereon maximal width at pereomeres 4–6, gradually tapering anteriorly and posteriorly (fig. 4E, F). Six pairs of pereopods present, absent on pereomere 7 (fig. 4F); pereopods multi-segmented, subequal in size, each with curved dactylus (fig. 4H); patch of scales on propodus at point where dactylus terminates on all pereopods (fig. 4H). Pleon of five segments plus pleotelson; pleomeres gradually decreasing in size posteriorly; without appendages (fig. 4E, F). Uropods well developed; terminal setae present (fig. 4E). Description of epicaridium larva (undergoing molt): Approximately 340 µm in length. Body teardrop shaped and dorsally convex; anterior margin of head rounded (fig. 5A). Head with pair of conical antennulae (segmentation and setae not distinct due to molting process) (fig. 5A, C); pair of long antennae of seven segments, four peduncular and three flagellar, half of total body length when fully extended (fig. 5A, B). Oral cone with pair of maxillipeds on each side of mouth on ventral side. Pereon of seven segments. Six pereopods; subequal in length, subchelate with ovate propodi and curved dactyli (fig. 5A, B). Pleon with five pairs of biramous pleopods, subequal in size, with three short setae on exopod and two short setae on endopod (fig. 5D). Telson tapered to point. Uropods with pointed endopod, slightly longer than exopod, both bearing short terminal setae (fig. 5E). Remarks: All specimens match the original morphological description of Diogenion vermifactus (Codreanu et al. 1960), previously known only infesting Diogenes senex in the Red Sea (fig. 2). However, in this study D. cf. vermifactus was found to parasitize three species of shallow subtidal calcinid hermit crabs, C. gaimardii, C. minutus and C. pulcher and the deeper water pagurid P. polymorpha in the coastal waters of the Philippines, over 8,000 km away from the type locality in the Red Sea (fig. 1). Currently, we cannot morphologically distinguish the Philippine specimens of Diogenion from those of the Red Sea; however, given this disjunct distribution and the barriered nature of the Red Sea (DiBattista et al. 2016; Schnurr et al. 2018; Hadfield & Smit 2020) it is possible that the Philippine entoniscid is a distinct species from D. vermifactus. Additional data, ideally including molecular sequencing, is needed to clarify whether D. vermifactus is widely distributed across the Indo-West Pacific or represents a species complex (Hadfield & Smit 2020). At present, the substantial geographic distance between the two localities and diversity of hosts suggests that a designation of “cf.” for the Philippine specimens is warranted pending discovery of additional specimens from along the range. Many features of the adult Diogenion vermifactus are considered primitive when compared to other members of Entoniscidae (Codreanu et al. 1960; Adkison 1990). Specifically, the female has segmented pereopods, a brood pouch formed by overlapping oostegites and a synchronously developing brood; males also retain segmented pereopods and possess both pairs of antennae as well as uropods. For these reasons, Adkison (1990) suggested that the genus be placed in its own subfamily. The epicaridium larval stage of D. vermifactus was not previously described except for mention of the narrowness of the larvae, the great length of the appendages and the uniform structure of the pereopods and pleopods (Codreanu et al. 1960; Adkison 1990). Although previous authors did not provide drawings or detailed descriptions of this larval stage, the present specimens exhibit the gross morphological details reported previously. The present study confirms that the epicaridium larvae have nearly uniform pereopods, i.e., the sixth pereopod is not greatly modified as in the larvae of some entoniscid genera (e.g., Cancrion Giard & Bonnier, 1887). However, the epicaridium larvae examined were undergoing a molt, making some features difficult to distinguish, as has been shown to occur in other epicarideans (see Williams & Boyko 2021).Published as part of Detorre, Marissa, Williams, Jason D. & Boyko, Christopher B., 2023, A review of the endoparasitic isopods (Epicaridea: Entoniscidae) from hermit crabs, including description of the new subfamily Diogenioninae and a new species of Paguritherium Reinhard, 1945 from the Philippines, pp. 12-40 in Zootaxa 5249 (1) on pages 17-20, DOI: 10.11646/zootaxa.5249.1.2, http://zenodo.org/record/768527
Diogenion Codreanu, Codreanu & Pike 1960
No full textGenus Diogenion Codreanu, Codreanu & Pike, 1960 Diagnosis: Female head with dorsal groove; antennulae broad, antennae reduced; small maxilliped present. Oostegites 1 – 7 present; oostegite 1 without ascendant lobe, with strongly developed recurrent lobe lined with pleatlike folds; brood pouch formed by overlapping of oostegites 1 – 4, oostegites 5 – 7 reduced. Pereopods 1 – 7 present. Pleon slender, heart tubercle in pleomere 1; pleural lamellae, pleopods and uropods absent. Male with both pairs of antennae present, antennulae projecting beyond margin of head; head not fused with pereomere 1. Pereopods 1 – 6 present, multisegmented; lacking pereopod 7 or greatly reduced. Pleon of five segments plus pleotelson, medioventral spines absent, uropods present. Epicaridium larva with pereopods 1 – 6 isomorphic; lacking pereopod 7; pereopod 6 similar in length to pereopod 5. Pleon with five pairs of biramous pleopods. Pleotelson tapering to point. Uropods with endopod slightly longer than exopod. Cryptoniscus larva unknown.Published as part of Detorre, Marissa, Williams, Jason D. & Boyko, Christopher B., 2023, A review of the endoparasitic isopods (Epicaridea: Entoniscidae) from hermit crabs, including description of the new subfamily Diogenioninae and a new species of Paguritherium Reinhard, 1945 from the Philippines, pp. 12-40 in Zootaxa 5249 (1) on page 17, DOI: 10.11646/zootaxa.5249.1.2, http://zenodo.org/record/768527
Pseudioninae Codreanu 1967
No full textKey to genera of Pseudioninae Codreanu, 1967, with species infesting hermit crabs <p> 1. Females with rudimentary oostegites on pereomeres VI and VII......................... <i>Pagurocryptella</i> Boyko & Williams, 2010</p> <p>– Females lacking rudimentary oostegites on pereomeres VI and VII............................................................................................2</p> <p>2. Females usually greatly distorted, typically 90° or more (if not distorted then with propodal sockets on pereopods)..............3</p> <p>– Females less distorted (generally <70°) or nearly symmetrical, lacking propodal sockets on pereopods..................................5</p> <p>3. Females with some biramous pleopods..................................4</p> <p> – Females with no biramous pleopods....................................................................................... <i>Bopyrophryxus</i> Codreanu, 1965</p> <p> 4. Females with propodal sockets on pereopods, first two pereopods much larger than the others........................................................................ <i>Asymmetrione</i> Codreanu, Codreanu & Pike, 1965</p> <p> – Females without propodal sockets on pereopods, pereopods subequal in size.................................................................................................. <i>Parasymmetrione</i> An, Markham & Yu, 2010</p> <p>5. Females with biramous uropods.............................................6</p> <p>– Females with uniramous uropods or lacking uropods...........7</p> <p> 6. Females with 6 pairs of pleonal lateral plates........................................................................................ <i>Pagurion</i> Shiino, 1933</p> <p> – Females with 5 pairs of pleonal lateral plates................................................................................ <i>Parapagurion</i> Shiino, 1933</p> <p>7. Females with pleomere 6 ventrally displaced, not visible in dorsal view..............................................................................8</p> <p>– Females with pleomere 6 not ventrally displaced, visible in dorsal view..............................................................................9</p> <p> 8. Males with uniramous pleopods................................................................... <i>Bopyrissa</i> Nierstrasz & Brender à Brandis, 1931</p> <p> – Males with biramous pleopods <i>.....</i> <i>Propseudione</i> Shiino, 1933</p> <p>9. Females with pleopod 5 uniramous......................................10</p> <p> – Females with pleopod 5 biramous...... <i>Eremitione</i>, new genus</p> <p> 10. F e m a l e s w i t h p l e o p o d s 1 a n d 2 b i r a m o u s, 3 a n d 4 uniramous....................................... <i>Pseudionella</i> Shiino, 1949</p> <p> – Females with pleopods 1–4 biramous................................................. <i>Parapseudione</i> Nierstrasz & Brender à Brandis, 1931</p>Published as part of <i>Williams, Jason D., Boyko, Christopher B. & Madad, Asma Z., 2019, Branchial parasitic isopods (Crustacea: Isopoda: Bopyridae: Pseudioninae) of hermit crabs (Crustacea: Decapoda: Diogenidae) from the western Pacific, with descriptions of a new genus and three new species, pp. 83-118 in Raffles Bulletin of Zoology 67</i> on page 85, DOI: 10.26107/RBZ-2019-0008, <a href="http://zenodo.org/record/5343344">http://zenodo.org/record/5343344</a>
Postcard Commemorating Death of Zelea Codreanu
No full textFront: A sepia photograph of Romanian men in the street.Back: White postcard with black printed postcard lines. Includes writing in blue ink as well as purple and blue postage stamps, as well as two black hand stamps.
Information Provided by Michael D. Bulmash:
Romanian postcard commemorating the 70th anniversary of the death of Iron Guard leader Zelea Codreanu, and his exile in Spain. Overprint on stamp of Iron Guard symbol with a picture of party members marching.https://digital.kenyon.edu/bulmash/1537/thumbnail.jp
A cognitive methodology to improve EOR/IOR choice process: from applied approaches to more generic ones
No full textRedescription of the Mediterranean endemic parasitic isopod Anuropodione amphiandra (Codreanu, Codreanu & Pike, 1966) n. comb. (Crustacea: Isopoda: Bopyridae) from Munida rutllanti Zariquiey Alvarez, 1952, with new records from Turkey and a review of the genus Anuropodione Bourdon, 1967
No full textSeven species of bopyrid isopods were previously known from Turkish Mediterranean waters; a purported eighth species, Orthione griffenis Markham, 2004, is based on incorrect identification and likely represent Epipenaeon ingens ingens Nobili, 1906, a species already known from the area. In the present study, we report on specimens referable to Pleurocrypta amphiandra Codreanu, Codreanu & Pike, 1966, infesting Munida rutllanti Zariquiey Alvarez, 1952, collected from the southern Aegean Sea off Turkey; this species was formerly known only from the Mediterranean off Algeria and the Adriatic Sea. The species is redescribed and illustrated for the first time and transferred to Anuropodione Bourdon, 1967, which is reviewed and A. australiensis Bourdon, 1976, is transferred to Allorbimorphus Bourdon, 1976. A key to all species of Anuropodione and a list of all bopyrids found on squat lobsters and porcelain crabs in the Mediterranean are provided
Deconvolution method for two-dimensional spatial-response mapping of lithographic infrared antennas
No full textThe spatial impulse response of antenna-coupled infrared detectors with dimensions comparable with the wavelength is obtained from a two-dimensional scan of a tightly focused CO(2)-laser beam. The method uses an experimental setup with submicrometer resolution and an iterative deconvolution algorithm. The measured spatial response is compared with numerically computed near-field distributions of a dipole antenna, with good agreement.Javier Alda, Christophe Fumeaux, Iulian Codreanu, Jason A. Schaefer, and Glenn D. Borema
Applied Studies on Desmids and Other Conjugating Algae (Zygnematophyceae, Streptophyta)
No full textThe conjugating algae (Zygnematophyceae, Streptophyta) have been primarily used as a model and test organisms for the study of many biological processes. Recent investigations demonstrated that they might have fair potential to be used for the commercial production of various metabolites as well as for the bioremediation of wastewaters. Due to the adaptation to high light intensities, Zygnematophyceae typically have high amounts of photosynthetic pigments, among which zeaxanthin and lutein have a precious role in medicine and agriculture. Furthermore, under certain conditions, some conjugating algae may produce astaxanthin, gallotannins, heat shock proteins (hsps), and antioxidant enzymes, which have nutraceutical and pharmaceutical significance. High amounts of several fatty acids (FAs), such as palmitic, oleic, linoleic, and α-linolenic acid, have been recorded in desmids (order Desmidiales), and these FAs may have an important role in cosmetics and industry as well as for biodiesel production. Some conjugating algae (e.g., Spirogyra sp.) have high biomass productivity and may accumulate large amounts of carbohydrates, 2representing a suitable substrate for bioethanol and hydrogen production. Furthermore, fresh and dried biomass of several representatives of the families Desmidiaceae and Zygnemataceae appeared efficient substrate for the biosorption of metals (As, Cd, Pb, Cu, Mn, Zn, Cr, Sr, Ba, Pb, Ni, and Hg), toxic substances, remedy residues, and nutrients, thus rendering this group interesting for the purification of various types of agricultural and industrial wastewaters.Sangeetha J, Codreanu S, Thangadurai D, editors. Microalgal Biotechnology: Bioprospecting Microalgae for Functional Metabolites towards Commercial and Sustainable Applications. New York: Apple Academic Press; 2023. p. 1-43. (Innovations in biotechnology)
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