[Redescription of the species of Calyptrobothrium Monticelli, 1893 (Tetraphyllidea: Phyllobothriidae) parasites of Torpedo marmorata in Torpedo nobiliana (Elasmobranchii: Torpedinidae)]. | LitMetric
Laboratoire de Parasitologie, Faculté des Sciences Biologiques, USTHB, BP 32, El Alia, Bab Ezzouar, Alger, Algérie.
Published: July 2007
AI Article Synopsis
Article Abstract
A study of the cestodes from the intestinal parasites of torpedinid elasmobranchs off the coast of Algeria, revealed the presence, in Torpedo marmorata Risso, of a species of Calyptrobothrium Monticelli, 1893, which we believe is identical to C. riggii Monticelli, 1893. This species, which has not been re-examined since its original description, is redescribed. We consider that the cestode from T. marmorata, described by Zschokke (1888) under the name of Tetrabothrium longicolle Molin, 1858, is conspecific with C.riggii. In Torpedo nobiliana Bonaparte, from the Mediterranean, we found C. occidentale Linton, 1900 and C. minus Linton, 1907. These two species are redescribed based on the type-material from the North American Atlantic coast, as well as from specimens collected off Sète and Algeria. We place several specimens, previously identified as C. riggii, as conspecific with C. minus. An amended diagnosis for Calyptrobothrium is proposed. We discuss the attribution of Bilocularia hyperapolytica Obersteiner, 1914 from Centrophorus granulosus (Centrophoridae) to Calyptrobothrium. C. chalarosomum Alexander, 1963 from Cephaloscyllium isabellum (Scylliorhinidae) off New-Zealand is excluded from the genus and placed close to Crossobothrium Linton, 1889.
Faculty of Sciences of Tunis, Laboratory of Diversity, Management and Conservation of Biological Systems, University of Tunis El Manar, LR18ES06, Tunis, Tunisia.
- Molecular markers have been used to study the life-cycles of digeneans, focusing on the larval stages of Monorchis Monticelli collected from infected bivalves and sparid fishes in the Gulf of Gabès, Tunisia.
- DNA analysis, particularly the COI gene and the ITS1 gene, was conducted to accurately identify the host molluscs and fishes, as well as the larval and adult stages of the Monorchis spp.
- The study indicates that the genetic sequences of larval Monorchis specimens closely resemble those of the adult Monorchis parvus, with noted morphological similarities to European variants but some differences in maturity and size.
A new Neotropical temnocephalan species is described from Aegla jarai Bond-Buckup & Buckup, 1994 from Santa Catarina, Brazil and recorded on Samastacus spinifrons (Philippi, 1882) from five locations (Región de Biobío, Región de la Araucanía, and Región de Los Lagos) in Chile. Temnocephala catarinensis sp. nov.
We describe Monorchis lewisi n. sp. (Monorchiidae) from the surf bream, Acanthopagrus australis (Günther, 1859) (Sparidae), in Moreton Bay, eastern Australia.
Cavanilles Institute of Biodiversity and Evolutionary Biology, Marine Zoology, Science Park, University of Valencia, Catedrático José Beltrán, 2, 46980, Paterna, Valencia, Spain.
Background: Accacoelium contortum (Rudolphi, 1819) Monticelli, 1893 is a frequent but poorly known trematode found on gills, pharynx and digestive tract of the ocean sunfish Mola mola (L.). Although the morphology of A.
A study of the cestodes from the intestinal parasites of torpedinid elasmobranchs off the coast of Algeria, revealed the presence, in Torpedo marmorata Risso, of a species of Calyptrobothrium Monticelli, 1893, which we believe is identical to C. riggii Monticelli, 1893. This species, which has not been re-examined since its original description, is redescribed.
