Philippe Jouk - Academia.edu (original) (raw)

Papers by Philippe Jouk

Leysen, Heleen, P JOUK, and Dominique Adriaens. 2007. “Patterns of Cranial Skeleton Ontogeny in S... more Leysen, Heleen, P JOUK, and Dominique Adriaens. 2007. “Patterns of Cranial Skeleton Ontogeny in Syngnathidae: A Comparison Between Syngnathus Rostellatus and Hippocampus Capensis.” In Journal of Morphology, 268:1099–1099. ... Leysen, H., JOUK, P., & Adriaens, D. (2007). Patterns of cranial skeleton ontogeny in syngnathidae: A comparison between Syngnathus rostellatus and Hippocampus capensis. JOURNAL OF MORPHOLOGY (Vol. 268, pp. 1099–1099). ... Leysen H, JOUK P, Adriaens D. Patterns of cranial skeleton ontogeny in ...

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The taxon Koinocystididae is the third most species-rich family within Eukalyptorhynchia. However... more The taxon Koinocystididae is the third most species-rich family within Eukalyptorhynchia. However, its diversity and phylogeny have been largely neglected in former studies. We introduce three new genera and twelve new species of Koinocystididae including Simplexcystis asymmetrica gen. n. sp. n., Galapagetula cubensis sp. n., eight species of Reinhardorhynchus gen. n. and two species of Itaipusa. This raises the total number of species within Koinocystididae from 51 to 63. We also report on new distribution records for six known species: I. divae (Cuba, Panama and New Caledonia), I. karlingi (Sardinia and Lanzarote), Reinhardorhynchus riegeri comb. n. (Cuba), R. ruffinjonesi comb. n. (Cuba and Panama), Utelga heinckei (Cuba and Lanzarote), and U. pseudoheinckei (Sardinia). Simplexcystis asymmetrica gen. n. sp. n. is characterised by a male duct running eccentrically through the copulatory bulb, lack of any hard structures in the male system, lack of a bursa, and the fact that the ep...

Tijdschrift voor Geneeskunde, 2000

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An overview is given of all representatives of the genus Typhlopolycystis Karling, 1956: the five... more An overview is given of all representatives of the genus Typhlopolycystis Karling, 1956: the five known species (T. coeca Karling, 1956; T. mediterranea Brunet, 1965; T. coomansi Schockaert and Karling, 1975; T. schockaerti Karling, 1978 and T. rubra Noldt and Reise, 1985) and eleven new species: T. microphthalma n. sp. from S. France, T. fonsecai n. sp. and T. maikoni n. sp. from Brazil, T. norenburgi n. sp. and T. leasiae n.sp from the Pacific coast of Panama, T. pluvialiae n. sp. from Lanzarote (Canary Islands, Spain), T. riegeri n. sp. from Tanzania, T. tahitienis n. sp. from French Polynesia, T. australiensis n. sp. from South Australia, T. sarda n. sp. from Sardinia (Italy), the S. of France and from Lanzarote, and T. errata n. sp. from Sardinia (Italy). We consider T. limicola Schilke, 1970 as a species inquirenda of which no type material exists. Finally, some comments are given on the distribution of the genus of which representatives have been found in almost all places th...

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Coelogynopora schockaerti n. sp. (Proseriata: Coelogynoporidae) is described from the northwester... more Coelogynopora schockaerti n. sp. (Proseriata: Coelogynoporidae) is described from the northwestern Gulf of Lion, Mediterranean. Only a few representatives of this genus are reported from Mediterranean marine sandy shores and only from the northwestern to central Mediterranean, but all of these species also occur outside the Mediterranean. So far, C. schockaerti n. sp. is the only species exclusively known from the Mediterranean. The species is solely encountered in the Gulf of Lion, a coldwater pocket in the Mediterranean and can, therefore, be considered as a remnant of an ancient coldwater platyhelminth fauna. C. schockaerti n. sp. is characterized by the shape and size of the spines of the male copulatory organ and the presence, orientation, shape and size of the two accessory spines. An identification key is given for the entire genus.

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Belgian Journal of Zoology

Cirrifera genitoductus sp.n. (Platyhelminthes, Proseriata, Coelogynoporidae) is described from sa... more Cirrifera genitoductus sp.n. (Platyhelminthes, Proseriata, Coelogynoporidae) is described from sandy beaches at the Belgian and Northern French coasts. The species is characterised by a cirrus with small spines, all of the same size, a prostate vesicle far behind the copulatory bulb, a long genito-intestinal duct and a pair of large gland complexes behind the genital pore. An identification key for the Cirrifera-species is given as are some data on the ultrastructure. A brief discussion on the character distribution within the Coelogynoporidae shows that the discovery of a species of Cirrifera with a genito-intestinal duct makes the demarcation of the genera even more blurred than it already is.

Ten sandy beaches at the Belgian coast were sampled monthly on a qualitative basis. Six of them w... more Ten sandy beaches at the Belgian coast were sampled monthly on a qualitative basis. Six of them were also sampled quantitatively every two months. In total, 130 species were encountered, 38 % of them occur only in I or 2 localities, 32 % have a more general distribution (in 3 to 7 localities) and 30 % are found in at least 8 localities. Schizo- rhynchia generally fonn the dominant taxon in number of species, followed by the Proseriata. In Knokke and Het Zwin, equal numbers of species were found for both taxa. Mariakerke, Bredene, Knokke and Het Zwin have the most diverse turbellarian fauna's, with the lowest dominance ratio's. In the semi- exposed beach of Oostende the fauna is slightly less diverse, dominated by a few species, while the sheltered beach in Heist clearly has the least diverse fauna, strongly dominated by one species, Archilopsis arenaria.

Cirrifera genitoductus sp.n. (Platyhelminthes, Proseriata, Coelogynoporidae) is described from sa... more Cirrifera genitoductus sp.n. (Platyhelminthes, Proseriata, Coelogynoporidae) is described from sandy beaches at the Belgian and Northern French coasts. The species is characterised by a cirrus with small spines, all of the same size, a prostate vesi- cle far behind the copulatory bulb, a long genito-intestinal duct and a pair of large gland complexes behind the genital pore. An identification key for the Cirrifera-species is given as are some data on the ultrastructure. A brief discussion on the character distri- bution within the Coelogynoporidae shows that the discovery of a species of Cirrifera with a genito-intestinal duct makes the demarcation of the genera even more blurred than it already is.

Journal of Morphology, 2010

The long snout of pipefishes and seahorses (Syngnathidae, Gasterosteiformes) is formed as an 22 e... more The long snout of pipefishes and seahorses (Syngnathidae, Gasterosteiformes) is formed as an 22 elongation of the ethmoid region. This is in contrast to many other teleosts with elongate 23 snouts (e.g. Butterflyfishes) in which the snout is formed as an extension of the jaws. 24

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Tijdschrift voor Geneeskunde, 2000

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Belgian Journal of Zoology

Cirrifera genitoductus sp.n. (Platyhelminthes, Proseriata, Coelogynoporidae) is described from sa... more Cirrifera genitoductus sp.n. (Platyhelminthes, Proseriata, Coelogynoporidae) is described from sandy beaches at the Belgian and Northern French coasts. The species is characterised by a cirrus with small spines, all of the same size, a prostate vesi- cle far behind the copulatory bulb, a long genito-intestinal duct and a pair of large gland complexes behind the genital pore. An identification key for the Cirrifera-species is given as are some data on the ultrastructure. A brief discussion on the character distri- bution within the Coelogynoporidae shows that the discovery of a species of Cirrifera with a genito-intestinal duct makes the demarcation of the genera even more blurred than it already is.

Journal of Morphology, 2010