01931nas a2200157   4500008004100000020002000041245018400061210006900245260004000314300001100354490000600365520125400371100001501625700001701640856011601657       1980                        eng d  a01655752 (ISSN)00aThe effect of host species on growth and variability of Echinorhynchus salmonis Müller, 1784 (Acanthocephala: Echinorhynchidae), with special reference to the status of the genus0 aeffect of host species on growth and variability of Echinorhynch  bKluwer Academic Publishersc1980///  a9 - 200 v23 a<p>The sex and age (as measured by length) of Echinorhynchus salmonis M&uuml;ller, 1784 and the host species of this acanthocephalan considerably affected worm body form and size, as well as size of proboscis, proboscis hooks, proboscis receptacle, lemnisci, testes and cement glands. Linear regression analysis indicated that curves describing the growth pattern of these characters by worm length were significantly different as a function of host species. The larger worms recovered from bloater (Coregonus hoyi: Salmonidae) almost invariably showed higher regression coefficient compared to those from smelt (Osmerus mordax: Osmeridae) in all characters. Taxonomic implications of these findings are discussed. Abnormalities in body wall, proboscis hook orientation, lemnisci and cement gland ducts as well as variations in proboscis hook and cement gland numbers are reported, some for the first time. Findings from studies of cement gland pattern invalidate Petrochenko&#39;s (1956) splitting up of the genus into three: Echinorhynchus, Metechinorhynchus and Pseudoechinorhynchus. It is proposed that the designation of the last two genera as junior synynoms of the first be accepted. ac]19791205 &copy; 1980 Dr. W. Junk b.v. Publishers.</p>
1 aAmin, O.M.1 aRedlin, M.J.  uhttp://www.scopus.com/inward/record.url?eid=2-s2.0-0001893640&partnerID=40&md5=72321f049e14bc45c5077063d6f88fa702729nas a2200433   4500008004100000020002000041245026000061210006900321260001200390300001400402490000700416520134600423653001901769653002001788653001101808653002301819653001201842653001201854653001301866653001101879653000901890653001701899653001801916653001101934653001601945653002601961653001401987653001402001653001502015653003102030653001002061653000902071653001702080653002302097653002402120653001902144100001502163856011702178       2005                        eng d  a01655752 (ISSN)00aOccurrence of the subgenus Acanthosentis Verma & Datta, 1929 (Acanthocephala: Quadrigyridae) in Japan, with the description of Acanthogyrus (Acanthosentis) alternatspinus n. sp. and A. (A.) parareceptaclis n. sp. from Lake Biwa drainage fishes and a key t0 aOccurrence of the subgenus Acanthosentis Verma Datta 1929 Acanth  c2005///  a125 - 1370 v603 aAll 44 described species of the subgenus Acanthosentis Varma & Datta, 1929 are recognised as valid. These include two new species, Acanthogyrus (Acanthosentis)alternatspinus n. sp. from Rhodeus ocellatus ocellatus (Kner) (Cyprinidae) and A. (A.) parareceptaclis n. sp. from Cobitis biwae Jordan & Snyder (Cobitidae) in the Lake Biwa drainage, Japan. These are the first representatives of the subgenus Acanthosentis recorded from Japan. Most other species are found in the Indian subcontinent, but a few have been reported from China, elsewhere in Asia, Africa, Europe and Central America. Only A. (A.) alternatspinus has the lateral proboscis hooks in the apical and middle circles markedly displaced posteriorly but of equal size to the other hooks in the same circles and multi-branched lemnisci. Acanthogyrus (A.) parareceptaclis uniquely possesses parareceptacle structures in both sexes as well as a pair of cone-shaped genital jackets flanking the vagina (vaginal sleeve). Two new names are provided: Acanthogyrus (Acanthosentis) adriaticus nom. nov. for A. (A.) lizae Orecchia, Paggi & Radujkovic, 1988 nec Wang, 1896, and A. (A.) cheni nom. nov. for A. (A.) coiliae (Yamaguti) sensu Chen et al. (1973). A review of the species composition of Acanthosentis is provided and a key to its species and zoogeographical notes are included.10aAcanthocephala10aAcanthocephalus10aanimal10aanimal parasitosis10aAnimals10aarticle10aDrainage10aFemale10afish10afish disease10aFish Diseases10aFishes10aFresh Water10aHelminthiasis, Animal10ahistology10aintestine10aIntestines10aisolation and purification10aJapan10aMale10aParasitology10aspecies difference10aSpecies Specificity10awound drainage1 aAmin, O.M.  uhttp://www.scopus.com/inward/record.url?eid=2-s2.0-22844436816&partnerID=40&md5=c84b67997864cf2cce3f5821c4052e4a