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Sur une nouvelle espèce de calonymphide du termite brésilien Cryptotermes sp. recolté dans la ville de Campinas
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Um Cryptotermes encontrado em Campinas e cuja determinação especifica será dada em nota ulterior, é parasitado por uma fauna abundante constituída por um Caloninfídeo, algumas espécies de Devescovinas e Foainas, pequenos flagelados do género Tricercomitus e um Amebiano. Sòmente o Caloninfideo é objecto do presente estudo, por ser um espécimen curioso que apresenta, esparsos pela camada superficial do endoplasma, mais particularmente na porção inferior do terço superior, 12-20, raras vezes 30-40 núcleos, que não têm nenhuma conexão com nenhuma outra organela circunjacente. Além disso, nesse terço superior emergem da zona mais profunda centenas de akariomastigontes, constituídos por corpos parabasais
ovalares ou lenticulares, dispostos sobre filamentos axostilares em séries lineares divergentes, com aparência de folíolos e dos quais saem os flagelos anteriores de 20-25 microns, dois por cada mastigonte. Este Caloninfídeo não tem pais kariomastigontes mas apenas akariomastigontes, cujos filamentos axostilares se reunem em feixe mediano descendente que se não projecta para fora do contorno inferior do parasita.
Uma espécie muito parecida foi descrita por Kirby em 1929 sob o nome de Snyderella tabogae: sòmente o auto: englobou os caracteres básicos e específicos num conjunto único sobre que fundou o género.
No presente trabalho comparam-se as duas espécies, faz-se a revisão do género que é redefinido, tomando-se apenas em conta os caracteres básicos e, mostradas as similitudes e as diferenças, a espécie actual é classificada como uma espécie nova que é intitulada Synderella bandeirantium n. sp.
A Brazilian termite collected at Campinas and belonging to the gen. Cryptotermes - its precise specific determination wil be given in a further note - harbours in its intestine an abundant fauna constituted by a Calonymphid, some species of Devescovina and Foaina, small flagellates of the gen. Tricercomitus and an Amoeba. Only the Calonymphid is the object of the present study. Generally oval with both poles roundish, sometimes pyriform with posterior pointed end, this Calonymphid shows the curious peculiarity of possessing 12-20 nuclei, sometimes 30-40, irregularly spread in the superficial layer of the endoplasm, especially in the lower part of its upper third. These nuclei have no connection whatoever with any surrounding organel. On its upper third there are also numerous, often uncountable, akaryomastigonts, composed of roundish parabassal bodies, inserted on axostylar filaments disposed in divergent lines, forming a kind of folioles which, lying in a deeper layer of endoplasm, proceed to the peripheral outline and give rise to the flagella which coming from minute blepharoplasts, fully packed up, are only two for each mastigont. The axostylar filameots which are enlarged in the base as a rudimentary capitulum, come·downwards and, united to their similar one, form a median bundle which does not protrude oulside the body. This Calonymphid does not possess therefore karyomastigonts, hut only nuclei and akaryomastigonts. A closely allied parasite was described by Kirby in 1929 under the name Snyderella tabogae: unhappily the author summed up both basic and specific characters and defined the genus accordingly. ln the present study both species are compared, the genus revised and redefined and the present species classified as a n. sp. which is named Snyderella bandeirantium.
A Brazilian termite collected at Campinas and belonging to the gen. Cryptotermes - its precise specific determination wil be given in a further note - harbours in its intestine an abundant fauna constituted by a Calonymphid, some species of Devescovina and Foaina, small flagellates of the gen. Tricercomitus and an Amoeba. Only the Calonymphid is the object of the present study. Generally oval with both poles roundish, sometimes pyriform with posterior pointed end, this Calonymphid shows the curious peculiarity of possessing 12-20 nuclei, sometimes 30-40, irregularly spread in the superficial layer of the endoplasm, especially in the lower part of its upper third. These nuclei have no connection whatoever with any surrounding organel. On its upper third there are also numerous, often uncountable, akaryomastigonts, composed of roundish parabassal bodies, inserted on axostylar filaments disposed in divergent lines, forming a kind of folioles which, lying in a deeper layer of endoplasm, proceed to the peripheral outline and give rise to the flagella which coming from minute blepharoplasts, fully packed up, are only two for each mastigont. The axostylar filameots which are enlarged in the base as a rudimentary capitulum, come·downwards and, united to their similar one, form a median bundle which does not protrude oulside the body. This Calonymphid does not possess therefore karyomastigonts, hut only nuclei and akaryomastigonts. A closely allied parasite was described by Kirby in 1929 under the name Snyderella tabogae: unhappily the author summed up both basic and specific characters and defined the genus accordingly. ln the present study both species are compared, the genus revised and redefined and the present species classified as a n. sp. which is named Snyderella bandeirantium.
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Parasitologia
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Instituto de Medicina Tropical