00599nas a2200133 4500008004100000245012600041210006900167300001200236490000800248100001800256700002400274700002400298856014300322 2001 eng d00aTaxonomic redescription of Phagocata sibirica and comparison with Phagocata vivida (Tricladida, Paludicola)0 aTaxonomic redescription of iPhagocata sibiricai and comparison w a193-1990 v1311 aSluys, Ronald1 aKawakatsu, Masaharu1 aTimoshkin, Oleg, A. uhttp://www.naturalsciences.be/institute/associations/rbzs_website/bjz/back/pdf/BJZ%20131%28s1%29/Volume%20131%28s1%29,%20pp.%20193-199.pdf00707nas a2200181 4500008004100000245019900041210006900240260001200309300001200321490000800333100002400341700001800365700002400383700002500407700002100432700002000453856005200473 2001 eng d00aRedescription of Japanese Bdellocephala annandalei from Lake Biwa-ko with comparative redescription of the Far Eastern and Kamchatkan Bdellocephala species (Tricladida, Paludicola)0 aRedescription of Japanese iBdellocephala annandaleii from Lake B c04/2001 a205-2110 v1311 aKawakatsu, Masaharu1 aSluys, Ronald1 aTimoshkin, Oleg, A.1 aNaumova, Tatyana, V.1 aNishino, Machiko1 aTakai, Masayuki uhttps://continenticola.myspecies.info/node/129900669nas a2200157 4500008004100000022002000041245021000061210006900271260000900340300001000349490000800359100002400367700001800391700002200409856008000431 2005 eng d a07776276 (ISSN)00aSeven new species of land planarian from Japan and China (Platyhelminthes, Tricladida, Bipaliidae), with a morphological review of all Japanese bipaliids and a biogeographic overview of Far Eastern species0 aSeven new species of land planarian from Japan and China Platyhe c2005 a53-770 v1351 aKawakatsu, Masaharu1 aSluys, Ronald1 aOgren, Robert, E. uhttp://www.scopus.com/inward/record.url?eid=2-s2.0-31944447751&partnerID=4002224nas a2200169 4500008004100000245013200041210006900173300001200242490000800254520167200262100001501934700001801949700002101967700001401988700001502002856003702017 2010 eng d00aSpermatogenesis and spermatozoon ultrastructure in Dugesia sicula Lepori, 1948 (Platyhelminthes, Tricladida, Paludicola)0 aSpermatogenesis and spermatozoon ultrastructure in iDugesia sicu a118-1250 v1403 a

We examine for the first time spermatogenesis, spermiogenesis and spermatozoon ultrastructure in Dugesia sicula Lepori, 1948 a sexual and diploid planarian living in Tunisian springs. This TEM-study shows that early spermatids joined by cytophores have rounded nuclei. During spermiogenesis, a row of microtubules appears in the differentiation zone beneath the plasma membrane and close to the intercentriolar body, which consists of several dense bands connected by filaments. Two free flagella (9+1 configuration) grow outside the spermatid. An apical layer of dense nucleoplasm develops and the flagellum appear, facing in opposite directions before rotating to lie parallel to each other after the intercentriolar body splits into two halves. Mitochondria are closely packed around the spermatocyte nucleus before fusing during spermiogenesis, to form a long mitochondrion, which lies parallel to the elongated nucleus along the ripe spermatozoon. The latter is thread-shaped and consists of two regions: the proximal process and a distal part. The former contains the nucleus and a part of the mitochondrion. The latter contains the rest of the mitochondrion and a tapering tail of the nucleus. Separation between these two regions is marked externally by the insertion zone of the two free flagella. The flagella extend posteriorly along the distal part of the spermatozoon. The spermatozoon nucleus consists of a lucent and a dense component coiled in a screw-like pattern around each other. The single row of peripheral microtubules consists of a maximum 40 microtubules in the middle part with an internal layer of three supplementary microtubules.

1 aCharni, M.1 aBen Ammar, A.1 aJaafoura, M., H.1 aZghal, F.1 aTekaya, S. uhttp://hdl.handle.net/1942/1132401622nas a2200169 4500008004100000245012600041210006900167300001200236490000800248520107600256100001501332700001801347700002101365700001401386700001501400856003701415 2010 eng d00aUltrastructure of germaria and vitellaria in Dugesia sicula Lepori, 1948 (Platyhelminthes, Tricladida, Paludicola)0 aUltrastructure of germaria and vitellaria in iDugesia siculai Le a111-1180 v1403 a

The female gonad of the diploid and sexual planarian Dugesia sicula Lepori, 1948 has been studied by means of transmission electron microscopy (TEM). The germaria consist of two ovaries occurring in the anterior body part behind the eyes. The vitellaria are composed of two lateral rows of vitelline follicles ranged dorsally and ventrally from the ovaries to the copulatory apparatus. During their growth, oocytes are provided with scattered residual yolk globules. The cytoplasm of maturing oocytes is filled with mitochondria, chromatoid bodies, Golgi complexes, RER, annulate lamellae and small yolk globules (2-3 μm in diameter) surrounded by a simple membrane, and lacks cortical granules. During the early stage of differentiation, vitellocytes enclose well-developed RER and Golgi complexes. Mature vitellocytes show yolk and eggshell globules, lipid droplets and glycogen particles. Golgi complexes and RER are involved in the production of eggshell and yolk globules respectively. Eggshell globules exhibit a concentric pattern typical for triclads.

1 aCharni, M.1 aBen Ammar, A.1 aJaafoura, M., H.1 aZghal, F.1 aTekaya, S. uhttp://hdl.handle.net/1942/1132300985nas a2200157 4500008004100000245006000041210006000101260001200161300001200173490000800185520046000193100001800653700002400671700002300695856010900718 2010 eng d00aExotic freshwater planarians currently known from Japan0 aExotic freshwater planarians currently known from Japan c07/2010 a103-1090 v1403 a

{Biogeographical and taxonomic information on the four non-indigenous freshwater planarians of Japan is reviewed, viz. Dugesia austroasiatica Kawakatsu, 1985, Girardia tigrina (Girard, 1850), G. dorotocephala (Woodworth, 1897), and Rhodax evelinae? Marcus, 1947. The occurrence of Girardia dorotocephala in Japan is unequivocally demonstrated. New karyological data are presented for populations of D. austroasiatica (chromosome complement: 2x=16

1 aSluys, Ronald1 aKawakatsu, Masaharu1 aYamamoto, Kiyohiko uhttp://www.naturalsciences.be/institute/associations/rbzs_website/bjz/back/pdf/BJZ_140_su/BJZ_RSluys.pdf02248nas a2200133 4500008004100000245009100041210006900132300001000201490000800211520173700219100002101956700002601977856011102003 2010 eng d00aLand flatworm community structure in a subtropical deciduous forest in Southern Brazil0 aLand flatworm community structure in a subtropical deciduous for a83-900 v1403 a

Due to their biological characteristics and habitat requirements, land planarians have been proposed as indicator taxa in biodiversity and conservation studies. Herein, we investigated spatial patterns of land flatworm communities in the three main existent vegetation types of the most significant remnant of the subtropical deciduous forest in south Brazil. The main questions were: (1) How species-rich is the study area? (2) How are community-structure attributes allocated in areas with distinct floristic composition? (3) What are the effects of soil humidity and soil organic matter content on flatworm abundance? (4) Are there seasonal differences regarding species richness? (5) Are the communities in the three types of vegetation distinct? Twenty-two flatworm species, distributed in five genera and two subfamilies, were recorded. Results indicated that: (1) species richness, evenness, abundance, and dominance in the three vegetation types are not significantly different; (2) diversity indices were higher for areas with caducifolious forest than for areas with jaboticaba trees with marginally significant differences; (3) flatworm abundance is negatively related to soil organic matter; (4) there are no significant differences in flatworm species richness throughout the year; and (5) flatworm communities in the three types of vegetation are not distinct. Soil organic matter content was abundant at sites with distinct vegetation types, thereby negatively affecting flatworm abundance. The original vegetation of the study area has been well-preserved, which may be an explanation for the absence of a clear separation of the flatworm communities of the three main types of vegetation in the study area.

1 aBaptista, V., A.1 aLeal-Zanchet, Ana, M. uhttp://www.naturalsciences.be/institute/associations/rbzs_website/bjz/back/pdf/BJZ_140_su/BJZ_Baptista.pdf