RCAAP Repository

Comparative morphometrics of Ctenosciaena gracilicirrhus, Paralonchurus brasiliensis and Micropogonias furnieri (Teleostei: Sciaenidae) by multivariate analysis of truss networks. Morphological differentiation among three species of sciaenid fishes, Ctenosciaena gracilicirrhus, Paralonchurus brasilliensis and Micropogonias furnieri, was analyzed by multivariate statistical techniques, using measuraments obtained from truss networks based on anatomical landmarks. Principal components analysis of interlandmark distances defined by the truss system showed that the individuais of Ctenosciaena gracilicirrhus are different from those of the other two species in relation to shape, being more similar to the individuals of Micropogonias furnieri in relation to size.

Cynolebias leitaoi n. sp. is described from Mucuri, State of Bahia. This new species is related to the group having females without ornamentation pattem in the body and fins. The most distinctive character observed is the pattern of vertical bars in the flank associated to the presence of small drops in the flank and anal, caudal and dorsal fins, of the males.

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The genital pieces of the holotypes of Craspedochoeta pallidithorax (Albuquerque, 1959) and C. xanthopyga (Albuquerque, 1959), both females, are herein described, including illustrations.

Durante um período de 29 meses consecutivos foram realizados inventários de mamíferos em habitais de floresta nativa e exótica, além de área de campo, todos situados no Parque Florestal Estadual do Rio Doce, localizado na região ocidental da Mata Atlântica no estado de Minas Gerais. Foram registradas para o Parque um total de 60 espécies de mamíferos, distribuídas por 9 ordens, 24 famílias e 49 gêneros. De um esforço total de 64.300 armadilhas-noite, foram realizados 2.129 capturas de pequenos mamíferos não-voadores pertencentes a 20 espécies. Foram também capturadas 14 espécies de quirópteros, representando 12 gêneros e 4 famílias. Em 300 Km de censos diurnos repetidos nas áreas de mata nativa foram registradas 12 espécies de mamíferos de médio e grande porte, além de 14 outras observadas através de meios diversos. Estes dados reforçam a idéia que a mastofauna da Mata Atlântica é bastante diversa. O Parque Estadual Florestal do Rio Doce deve ser considerado como uma das principais áreas para a conservação de fauna desta região e sua proteção deve ser priorizada.

Tadpoles of Hyla bipunctata Spix and H. meridiana Lutz are described and illustrated, both belonging to the "microcephala" group, occurring in the State of Rio de Janeiro. In spite of the large resemblance existent between the tadpoles of these species, they can be distinguished by morphologic aspects, coloration and dimensions on several stages. In "microcephala" group, by the verified in the tadpoles now studied and in those of others species figured in the literature, we can emphasize singular aspects as the absence of comeus denticles and papillae in the mouth, alongside of the prolonged form of the body with xiphicercal tail.

The species Ascaridia columbae (Gmelin, 1790) Travassos, 1913, Acuaria mayori Lent, Freitas & Proença, 1945 and Aproctella stoddardi Cram, 1931, are redescribed and referred in new hosts. Acuaria mayori is reported for the first time in Brazil and Ap. stoddardi in South America. Ascaridia columbae is properly figured for the first time in Brazil.

Nine thousand, six hundred and ninety-one flies of the family Muscidae (47 species) and Anthomyiidae (2 species) were captured. Flies were collected in three ecologically distinct areas (urban, rural and forest) within the metropolitan region of the city of Rio de Janeiro using as baits decomposing fish, bovine liver, fresh human faeces and mashed banana with sugar. Fish attracted the highest number of flies all over the year. Large number of flies were always collected in the summer and spring but reduced in the winter. Among several species of flies, Atherigona orientalis Schiner, 1868, Musca domestica Linnaeus, 1758 and Synthesiomya nudiseta (Wulp, 1883) were always frequent.

A faunistic survey of the species of Callinectes Stimpson, 1871 carried out in the coastal and estuarine regions of the State of Rio Grande do Norte yielded five species: C. bocourti A. Milne Edwards, 1879; C. danae Smith, 1869; C. exasperatus (Gerstaecker, 1856); C. larvatus Ordway, 1863 and C. ornatus Ordway, 1863. Specimens examined consist of those collected on a monthly basis from three fixed stations within the estuary of Potengi, Natal during a period of two years and those obtained from other localities. Among the species occuring in the region, C. danae is more abundant and has a wider range of tolerance of salinity while C. larvatus is restricted to the marine habitat. Though C. danae sustains important artisan fishery, C. bocourti of large size also contribute to the fishery.

Researches under field conditions were done on the breeding cycle of Macrobrachium potiuna (Müller, 1880), a freshwater shrimp from southern Brazil. It was possible to determine the fecundity and establish its relations with the spawn's weight, the total length and the total weight of ovigerous females.

Eight localities were selected as representative sites to survey the entomofauna of Paraná State, Brazil: 1) Antonina (Sapitanduva); 2) Sao José dos Pinhais (Serra do Mar); 3) Colombo (Embrapa); 4) Ponta Grossa (Vila Velha); 5) Telêmaco Borba (Reserva Biológica Klabin); 6) Jundiaí do Sul (Fazenda Monte Verde); 7) Guarapuava (Santa Clara) and 8) Fênix (Reserva de Vila Rica). Floristic and meteorological conditions in these sites were registered and compared. One Malaise and one light trap were installed in each site. The insects were collected during two years, from August 1986 to July 1988. Only the material obtained during the first year has been sorted at insect order level and analyzed. The quantitative faunistic data were transformed in percentages and monthly densities for the analysis. Comparisons among collecting sites were established based on the faunistic and climatic data. The following methods were used to analyze the data: Clustering Analysis, Principal Coordinate Analysis and the Linear Correlation Coefficient.

The colony of C. albiceps (Wiedemann, 1819) was established from larvae and adults colected in the "Estação para Pesquisa Parasitológica W.O. Neitz" area at UFRRJ and Seropedica District, Itaguai, Rio de Janeiro. (Latitude: 22º45'S; Longitude: 43º41'W and Altitude: 33 metres). The biological aspects of this species were studied in climatized chambers regulated at 60±10% RH and 14 hours photophase. The duration and the viability of the larval and pupal stages of C. albiceps was 5,2 and 4,53 days; 95,75% and 94%, respectively. An effect of group was observed on the larvae at the first and second instar. The average weight of mature larvae was around 75 mg, varying between 12,2 to 120 mg. Only mature larvae with average weight higher than 42 mg have originated adults. Oviposition peaks between the sixth and tenth days pos-emergence were observed. Survival curves of the males and females were estimated using the Weibull model.

Ctenanthidium, gen.n. is proposed to include four new neotropical species of Anthidiinae bees, Ctenanthidium gracile, sp.n. from Brazil (Paraná, Curitiba); Ctenanthidium argentinum, sp.n. from Argentina (Córdoba); Ctenanthidium bifasciatum, sp.n. from Uruguai (Colonia, La Estanzuela) and Ctenanthidium nigripes, sp.n. from Bolívia (Potosi, Casa Grande). The males are characterized by the border of the third sternum with an apical comb of strong bristles apically rounded, between lateral fringes.

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Heteronotus mourei, sp.n. is described from Conde, Paraíba, Brazil.

Amblycerus kingsolveri, sp. n. from Amazonas, Brazil and A. marinonii, sp. n. from Goiás, Brazil, are described and illustrated.

A comparative study of some characters as: the lenght of the mesepisternal carina (almost complete or short), the shape of the scutellum (flattened or bilobed), and only in the male: the shape of the distal terga and of the sterna (normal or with some sterna hidden) and the lenght of the basal articles of the flagellum (short or longer than their diameter) resulted in distinguishing Anthidulum from Dicranthidium as good genera separated from Hypanthidioides Moure. Seven new species are described: Anthidulum christinae, sp.n. from Muzo, Colômbia; Anthidulum mourei, sp.n. from Ponta Grossa, PR, Brasil; Anthidulum cavichiolii, sp.n. from Cáceres, MT, Brasil: Anthidulum zanolae, sp.n. from Araxá, MG, Brasil; Dicranthidium luciae, sp.n. from Maracás, BA, Brasil; Dicranthidium soniae, sp.n. from Rep.R Grande, GB, Brasil and Dicranthidium insulare. sp.n. from San Rafael, Trinidad. Keys for the identification of the species of Anthidulum and Dicranthidium are included.

Along ten years of study of a common dolphin from the brazilian coast, Sotalia brasiliensis Van Beneden, 1874, I could see some occasions of feeding associations of this dolphin with five species of birds, Sula leucogaster (Boddaert, 1783), Fregata magnificens Mathews, 1914, Sterna hirundinacea Lesson, 1831, Larus dominicanus Lichtenstein, 1823 and Phalacrocorax olivaceus Humboldt, 1895. The commonest association observed was between the dolphin and S. leucogaster, and in all the associations was characterized the commensalism, with advantaged to the birds.