Matches in SemOpenAlex for { <https://semopenalex.org/work/W2003254472> ?p ?o ?g. }
Showing items 1 to 64 of
64
with 100 items per page.
- W2003254472 endingPage "479" @default.
- W2003254472 startingPage "457" @default.
- W2003254472 abstract "SUMMARY A description is given of some features of the embryonic development, the structure of the oncomiracidium and the postlarval development of R. emarginata , a hexabothriid parasite on the gills of Raia clavata. There are three phases in the larval development of the haptor of Rajonchocotyle: an oncomiracidial or marginal hook stage, a hamulus stage and a sucker stage. Neither the embryo nor the oncomiracidium ever possesses more than five pairs of marginal hooks and marginal hooks I (the posterior-most pair) are considered to be missing. The marginal hooks develop within distinct binucleate oncoblasts. During the early stages of post-oncomiracidial growth the secondary attachment organs of the haptor are formed and it is only after the completion of the development of the haptor that the reproductive organs begin to appear. Firstly, a pair of hamuli is acquired, followed by four pairs of suckers, which form in posterior-anterior succession at the site of marginal hooks III-VI. The first pair of suckers remains unarmed while the other three pairs acquire hooked sclerites and become the main functional attachment organs of the adult. As the first pair of suckers appears the posterior part of the haptor lengthens to form a caudal appendage. Hexabothriids are considered to show closer affinity to the 8-suckered chimaericolids and diclidophorids than to the 6-suckered polysto-matids, the unarmed suckers representing a simplification, by loss of the sclerite and reduction in sucker size, of an originally armed sucker. I would like to express my thanks to Dr J. Llewellyn for his interest and for much helpful discussion. Thanks are also due to the Director and Staff of the Marine Biological Association at Plymouth, in particular Mr J. E. Green for material and assistance, and to Dr A.j Brinkmann, of the Department of Zoology, University of Bergen, for supplying specimens of Squalonchocotyle borealis ." @default.
- W2003254472 created "2016-06-24" @default.
- W2003254472 creator A5034354477 @default.
- W2003254472 date "1970-06-01" @default.
- W2003254472 modified "2023-09-25" @default.
- W2003254472 title "The oncomiracidium and post-oncomiracidial development of the hexabothriid monogenean <i>Rajonchocotyle emarginata</i>" @default.
- W2003254472 cites W1488392212 @default.
- W2003254472 cites W2003560864 @default.
- W2003254472 cites W2041107471 @default.
- W2003254472 cites W2052655439 @default.
- W2003254472 cites W2102189558 @default.
- W2003254472 cites W2117381224 @default.
- W2003254472 cites W2125394266 @default.
- W2003254472 cites W2133834032 @default.
- W2003254472 cites W2144786206 @default.
- W2003254472 cites W4206007374 @default.
- W2003254472 doi "https://doi.org/10.1017/s0031182000078264" @default.
- W2003254472 hasPublicationYear "1970" @default.
- W2003254472 type Work @default.
- W2003254472 sameAs 2003254472 @default.
- W2003254472 citedByCount "18" @default.
- W2003254472 countsByYear W20032544722016 @default.
- W2003254472 countsByYear W20032544722017 @default.
- W2003254472 crossrefType "journal-article" @default.
- W2003254472 hasAuthorship W2003254472A5034354477 @default.
- W2003254472 hasConcept C105702510 @default.
- W2003254472 hasConcept C127413603 @default.
- W2003254472 hasConcept C173758957 @default.
- W2003254472 hasConcept C18903297 @default.
- W2003254472 hasConcept C2776802867 @default.
- W2003254472 hasConcept C2777586403 @default.
- W2003254472 hasConcept C41451933 @default.
- W2003254472 hasConcept C66938386 @default.
- W2003254472 hasConcept C86803240 @default.
- W2003254472 hasConceptScore W2003254472C105702510 @default.
- W2003254472 hasConceptScore W2003254472C127413603 @default.
- W2003254472 hasConceptScore W2003254472C173758957 @default.
- W2003254472 hasConceptScore W2003254472C18903297 @default.
- W2003254472 hasConceptScore W2003254472C2776802867 @default.
- W2003254472 hasConceptScore W2003254472C2777586403 @default.
- W2003254472 hasConceptScore W2003254472C41451933 @default.
- W2003254472 hasConceptScore W2003254472C66938386 @default.
- W2003254472 hasConceptScore W2003254472C86803240 @default.
- W2003254472 hasIssue "3" @default.
- W2003254472 hasLocation W20032544721 @default.
- W2003254472 hasOpenAccess W2003254472 @default.
- W2003254472 hasPrimaryLocation W20032544721 @default.
- W2003254472 hasRelatedWork W1993242362 @default.
- W2003254472 hasRelatedWork W2003254472 @default.
- W2003254472 hasRelatedWork W2007630889 @default.
- W2003254472 hasRelatedWork W2089625549 @default.
- W2003254472 hasRelatedWork W224424815 @default.
- W2003254472 hasRelatedWork W2898515217 @default.
- W2003254472 hasRelatedWork W3178748079 @default.
- W2003254472 hasRelatedWork W4205533015 @default.
- W2003254472 hasRelatedWork W809671639 @default.
- W2003254472 hasRelatedWork W3140530562 @default.
- W2003254472 hasVolume "60" @default.
- W2003254472 isParatext "false" @default.
- W2003254472 isRetracted "false" @default.
- W2003254472 magId "2003254472" @default.
- W2003254472 workType "article" @default.