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Roccatagliata D. The genus Platytyphlops (Cumacea: Crustacea): A new species from Argentina, taxonomic status of Platytyphlops orbicularis (Calman, 1905), and remarks on the genus. ZOOL ANZ 2022. [DOI: 10.1016/j.jcz.2022.12.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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Pereira E, Doti BLA, Roccatagliata D. A new species of Pseudione sensu lato (Isopoda: Bopyridae) on a squat lobster host from the deep South-West Atlantic. Zootaxa 2021; 4996:363-373. [PMID: 34810524 DOI: 10.11646/zootaxa.4996.2.10] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Indexed: 11/04/2022]
Abstract
A new bopyrid, Pseudione chiesai n. sp., is herein described based on an ovigerous female and an adult male found in the right branchial chamber on a specimen of Munida spinosa Henderson, 1885. This parasite was collected in the Mar del Plata submarine canyon at 819 m depth during the expedition Talud Continental I carried out by the Argentine RV Puerto Deseado in 2012. P. chiesai n. sp. belongs to the Pseudione crels group sensu Bourdon (1972, 1976), which currently contains seven species, all of which have galatheoid crabs as hosts. P. chiesai n. sp. can be separated from the other species in the Pseudione crels group by the following combination of characters: (1) both sides of the body convex, (2) frontal lamina with a few, shallow indentations, (3) coxal plates 14 and tergal projections 14 with distinct irregular margins, mainly on the right side, (4) pereomeres 57 with single/branched lateral digitations, (5) maxilliped palp well-developed and setose, and (6) pleon with lateral plates 15 distally rounded and directed laterally. The taxonomic position of this new species is briefly discussed.
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Affiliation(s)
- Emanuel Pereira
- CONICET-Universidad de Buenos Aires, Instituto de Biodiversidad y Biologa Experimental y Aplicada (IBBEA), Buenos Aires, Argentina. Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Departamento de Biodiversidad y Biologa Experimental, Buenos Aires, Argentina..
| | - Brenda LA Doti
- CONICET-Universidad de Buenos Aires, Instituto de Biodiversidad y Biologa Experimental y Aplicada (IBBEA), Buenos Aires, Argentina. Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Departamento de Biodiversidad y Biologa Experimental, Buenos Aires, Argentina..
| | - Daniel Roccatagliata
- CONICET-Universidad de Buenos Aires, Instituto de Biodiversidad y Biologa Experimental y Aplicada (IBBEA), Buenos Aires, Argentina. Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Departamento de Biodiversidad y Biologa Experimental, Buenos Aires, Argentina..
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Pereira E, Roccatagliata D, Doti BL. On the antarcturid genus Fissarcturus (Isopoda: Valvifera): Description of Fissarcturus argentinensis n. sp., first description of the male of Fissarcturus patagonicus (Ohlin, 1901), and biogeographic remarks on the genus. ZOOL ANZ 2020. [DOI: 10.1016/j.jcz.2020.08.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Doti BL, Chiesa IL, Roccatagliata D. Biodiversity of Isopoda and Cumacea (Peracarida, Crustacea) from the Marine Protected Area Namuncurá-Burdwood Bank, South-West Atlantic. Polar Biol 2020. [DOI: 10.1007/s00300-020-02725-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Giachetti CB, Roccatagliata D. Acutihumerus patagoniensis (Sieg, 1986) (Tanaidacea: Kalliapseudidae): supplementary description and remarks on its taxonomic status. Zootaxa 2014; 3861:345-54. [PMID: 25283414 DOI: 10.11646/zootaxa.3861.4.4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2014] [Indexed: 11/04/2022]
Abstract
Acutihumerus patagoniensis (Sieg, 1986) was originally described based on a single specimen from Golfo Nuevo, northern Patagonia, Argentina. Over 3000 specimens referable to this species from just a few miles of its type locality are now available. Based on these specimens, the description of A. patagoniensis is completed and the ontogenetic changes of the male cheliped are described and illustrated. Acutihumerus patagoniensis has recently been considered a junior synonym of A. cavooreni (Băcescu & Absalao, 1985) from southern Brazil. However, these species can be distinguished mainly by the male chela: A. patagoniensis has a much wider notch palm than A. cavooreni. Furthermore, most of the males herein reported from off the Río de la Plata have a chela with a narrow notch, a fact that suggests that this area might be a zone of hybridization or contact between A. patagoniensis and A. cavooreni. Hence, we claim that the recently proposed synonymy has not been proven, and the resolution of this taxonomic problem must await additional specimens of A. cavooreni from its type locality (Rio Grande do Sul, Brazil).
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Affiliation(s)
- Clara Belen Giachetti
- Departamento de Biodiversidad y Biología Experimental (DBBE), Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, C1428EGA, Buenos Aires, Argentina; unknown
| | - Daniel Roccatagliata
- Instituto de Biodiversidad y Biología Experimental y Aplicada (IBBEA, CONICET-UBA).;
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Alberico NA, Roccatagliata D, Mühlenhardt-Siegel U. Remarks on the deep-sea genus Chalarostylis (Cumacea: Lampropidae). Zootaxa 2014; 3753:323-34. [PMID: 24872303 DOI: 10.11646/zootaxa.3753.4.2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2014] [Indexed: 11/04/2022]
Abstract
Chalarostylis is a deep-sea genus close to Hemilamprops but easily distinguished from the latter mainly by its robust first pereopod. However, this appendage is frequently broken off at the anterior margin of the basis, making the identification of the species of the genus difficult. Regarding Hemilamprops brenkei, both the adult male holotype and the additional specimens herein reported from the Weddell Sea and the Guinea, Argentine and Brazilian Basins exhibit a huge first pereopod. Thus, this species is transferred to Chalarostylis and its description completed. Two other species until now in Hemilamprops, H. canadensis and H. longisetae are also transferred to Chalarostylis. In addition, an unknown species of Chalarostylis from the Bay of Biscay for which no name is given is briefly described. The diagnosis of this genus is emended.
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Affiliation(s)
- Natalia A Alberico
- Instituto de Biodiversidad y Biología Experimental y Aplicada (IBBEA, CONICET), Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, C1428EGA, Buenos Aires, Argentina.;
| | - Daniel Roccatagliata
- Instituto de Biodiversidad y Biología Experimental y Aplicada (IBBEA, CONICET), Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, C1428EGA, Buenos Aires, Argentina.; unknown
| | - Ute Mühlenhardt-Siegel
- Universität Hamburg, Biozentrum Grindel und Zoologisches Museum, Martin-Luther-King-Platz 3, D-20146 Hamburg, Germany Corresponding author.; unknown
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Abstract
Two new species of paramunnid isopods from Argentina are described: Munnogonium quequensis n. sp. from Buenos Aires Province (Quequén) and M. diplonychia n. sp. from Patagonia (Comodoro Rivadavia, Rada Tilly and Puerto Deseado). Both species are distinguished from their congeners by having a tight tuft of setae on the frontal margin. These setae have been discovered after examining the specimens under scanning electron microscope; under dissecting microscope they look like a short blunt median projection. M. diplonychia n. sp. differs from M. quequensis n. sp. by having bifid claws on pereopods II-IV. Eighty of the 92 specimens of M. quequensis n. sp. examined were found attached to the sea star Astropecten brasiliensis, a fact that suggests an association between these two species.
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Affiliation(s)
- Brenda L Doti
- Instituto de Biodiversidady Biologia Experimental y Aplicada (IBBEA), Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, C1428EGA, Buenos Aires, Argentina.
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Moretti AN, Roccatagliata D. On two allied species of the genusDiastylisfrom southern South America:D. granulataZimmer, 1921 andD. argentataCalman, 1912 (Crustacea: Cumacea: Diastylidae). J NAT HIST 2010. [DOI: 10.1080/00222930701711038] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Doti BL, Roccatagliata D. On the South American species of the genus Meridiosignum(Crustacea: Isopoda: Asellota: Paramunnidae). J NAT HIST 2009. [DOI: 10.1080/00222930902781046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Alberico NA, Roccatagliata D. Diastylis fabrizioi, a new species and brief redescription of D. planifronsCalman, 1912 (Crustacea: Cumacea: Diastylidae) from South America. J NAT HIST 2008. [DOI: 10.1080/00222930701858359] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Ribetti VL, Roccatagliata D. Redescription of Excirolana armata (Dana, 1853) and synonymy of Cirolana argentina Giambiagi, 1930 (Crustacea: Isopoda: Cirolanidae). P BIOL SOC WASH 2006. [DOI: 10.2988/0006-324x(2006)119[1:roeada]2.0.co;2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
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Peresan L, Roccatagliata D. First record of the hyperparasiteLiriopsis pygmaea(Cryptoniscidae, Isopoda) from a rhizocephalan parasite of the false king crabParalomis granulosafrom the Beagle Channel (Argentina), with a redescription. J NAT HIST 2005. [DOI: 10.1080/0022293042000200103] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Lovrich GA, Roccatagliata D, Peresan L. Hyperparasitism of the cryptoniscid isopod Liriopsis pygmaea on the lithodid Paralomis granulosa from the Beagle Channel, Argentina. Dis Aquat Organ 2004; 58:71-77. [PMID: 15038454 DOI: 10.3354/dao058071] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
A total of 29,570 false king crab Paralomis granulosa were sampled from the Beagle Channel (54 degrees 51'S, 68 degrees 12'W), Tierra del Fuego, Argentina, between July 1996 and August 1998. Crab size varied from 6.8 to 111.2 mm carapace length (CL). A few crabs parasitized by the rhizocephalan Briarosaccus callosus were found; prevalences of externae (the rhizocephalan reproductive body) and scars (the mark left on the host after the death of the parasite) were 0.28 and 0.16%, respectively. Of 85 externae examined, 55 were non-ovigerous and 30 ovigerous. The cryptoniscid isopod Liriopsis pygmaea infested 36.5% of the B. callosus examined. The most abundant stage was the cryptonicus larva, accounting for 208 of the 238 L. pygmaea recovered. Cryptonisci showed a highly aggregated distribution. A total of 92.7% of cryptonicsci were recovered inside empty externae, suggesting that the latter were attractive to cryptonisci. Early subadult females of L. pygmaea were rare; only 3 individuals occurred inside 1 ovigerous externa. Eight late subadult and 18 adult females were found on 3 and 7 non-ovigerous externae, respectively; in addition, 1 aberrant late subadult was found on 1 ovigerous externa. In the Beagle Channel, the population of P. granulosa harbours 3 different parasites: the bopyrid isopod Pseudione tuberculata, which reaches highest prevalence at 10 to 20 mm CL, the rhizocephalan B. callosus, with highest prevalence at 20 to 40 mm CL, and the cryptoniscid isopod L. pygmaea, which mainly infests rhizocephalan on crabs >40 mm CL.
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Affiliation(s)
- Gustavo A Lovrich
- Consejo Nacional de Investigaciones Científicas y Técnicas, Centro Austral de Investigaciones Científicas CC 92, V9410BFD Ushuaia, Tierra del Fuego, Argentina.
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Roccatagliata D. On two Southwest Atlantic species of the genus Leptocuma Sars, 1873 (Crustacea: Cumacea). J NAT HIST 1993. [DOI: 10.1080/00222939300770151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- D. Roccatagliata
- a Departmento de Biología, Facultad de Ciencias Exactas y Naturales , Universidad de Buenos Aires, Ciudad Universitaria , 1428, Buenos Aires, Argentina
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Abstract
Indoprofen, as isoindolinyl derivative, was evaluated as a postoperative analgesic in a randomized double-blind, between-patients study on 40 men with postgastrectomy pain. Single intravenous doses of 100 and 300 mg indoprofen and 0.5 and 1.5 Gm lysine acetylsalicylate (ASA) were compared in a four-point assay. The method of evaluation relied on subjective appraisal of pain relief by the patient for 6 hours after medication. The results demonstrate the analgesic efficacy of indoprofen in patients with severe postoperative pain, a dose-dependent effect, and a 13-to-16 potency ratio to ASA as judged from total pain relief.
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Zattoni J, Siani C, Roccatagliata D, Profice A, Spina G. [Effects of enflurane on the visually evoked cerebral potentials in man (author's transl)]. Masui 1980; 29:419-22. [PMID: 7401283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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