Abstract
A new rotifer is described from among samples taken from coastal lakes in southeastern Brazil. Comparisons to related rotifers are made. This new animal belongs to the Hexarthra mira-intermedia species group by way of its general morphological configuration, the number of teeth in the trophi (5), and the two club-shaped caudal appendages (CSCA's). An extremely long dorsal antenna and very long setae extending from the bend in the ventro-lateral arm characterize this animal's speciation.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Brandorff, G. O., W. Koste & N. Smirnov, 1982. The composition and structure of Rotiferan and Crustacean communities of the lower Rio Nhamunda, Amazonas, Brazil. Stud. Neotrop. Fauna Envir. 17: 69–121.
Dumont, H. J., M. Coussement & R. S. Anderson, 1978. An examination of some Hexarthra species (Rotatoria) from western Canada and Nepal. Can. J. Zool. 56: 440–445.
Hauer, J., 1941. Rotatorien aus dem “Zwischengebiet Wallacea”; das Genus Pedalia Barrois. Int. Rev. Hydrobiol. 41: 12–176.
Hauer, J., 1953. Zur Rotatorienfauna von Nordostbrasilien. Arch. Hydrobiol. 48: 154–172.
Hauer, J., 1965. Zur Rotatorienfauna des Amazonasgebietes Int.Revue Hydrobiol. 50: 341–389.
Koste, W., 1972. Rotatorien aus Gewässern Amazoniens. Amazoniana 3: 258–505.
Koste, W., 1977. Über drei neue Formen des Genus Hexarthra Schmarda, 1854: H. jenkinae f. najuru n. f., H. brandorffi n. sp. and H. polyodonta soaplakeiensis n. ssp. Gewässer u. Abwässer 62/63: 7–16.
Koste, W., 1978. Rotatoria. Die Rädertiere Mitteleuropas begründet von Max Voigt, 2. Gebrüder Borntraeger, Berlin, Stuttgart, 637 pp.
Koste, W. & S. J. De Paggi, 1982. Rotifera of the Superorder Monogononta recorded from Neotropis. Gewässer und Abwässer 68/69: 71–102.
Koste, W. & B. Robertson, 1983. Taxonomic studies of the Rotifera (Phylum Aschelminthes) from a Central Amazonian varzea lake, Lago Camaleao (Ilha de Marchantaria, Rio Solimoes, Amazonas, Brazil). Amazonia 8: 159–223.
Koste, W., B. Robertson & E. R. Hardy, 1984. Further taxonomical studies of the Rotifera from Lago Camaleao, a Central Amazonian varzea lake (Ilha de Marchantaria, Rio Solimoes, Amazonas, Brazil). Amazoniana 8: 555–576.
Koste, W. & E. R. Hardy, 1984. Taxonomic studies and new distribution records of Rotifera (Phylum Aschelminthes) from Rio Jatapd and Uatuma, Amazonas, Brazil. Amazoniana 9: 17–29.
Löffler, H., 1954. Über eine Varietät von Pedalia fennica aus Nordwestpersien. Erg. der österr. Iran. Esp. 1949/50. Zool. Anz. 152: 145–146.
Murray, J., 1913. South American Rotifera. J. Roy. Micr. Soc., 449–454.
Pourriot, R., 1975. Rotiferes des Antilles. Cah. O. R. S. T. O. M., Hydrobiol. 9: 81–90. 1
Reid, J. W. & F. de Esteves, 1984. Consideraöes Ecolögicas e Biogeogräficas sobre a Fauna de Copépodos (Crustacea) Planctönicos e Bentönicos de 14 Lagoas Costeiras do Estado Do Rio de Janeiro, Brasil. Restingas: Origem, Estrutura, Processos. Lacerda, L.D. de; Araújo, D.S.D. de; Cerqueira, R. & Turcq, B. (orgs.), CEUFF, Niteròi, Brazil, 1984, 305–326.
Ruttner-Kolisko, A., 1974. Plankton Rotifers, Biology and Taxonomy. 1–146, Suppl. ed. of Die Binnengewässer XXVI/1.
Wiszniewski, J., 1929. Zwei neue Rädertierrarten: Pedalia intermedia n. sp. and Paradicranophorus limosus n. g. n. sp. Bull. acad. polon. sci. lett., Cl. sci. nat., Krakow, ser. B (II): 137–153.
Wiszniewski, J., 1933. Un nouveau Rotifère du genre Pedalia habitant les lacs des hautes montagnes. Int. Rev. ges. Hydrobiol. and Hydrogr. 29 (3/4): 229–236.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Turner, P.N. A new rotifer from a coastal lake in Southeastern Brazil: Hexarthra longicornicula n. sp.. Hydrobiologia 153, 169–174 (1987). https://doi.org/10.1007/BF00006648
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/BF00006648