@article {39, title = {Revision of Neoechinorhynchus Stiles \& Hassall, 1905 (Acanthocephala: Neoechinorhynchidae) with keys to 88 species in two subgenera.}, journal = {Syst Parasitol}, volume = {53}, year = {2002}, month = {2002 Sep}, pages = {1-18}, abstract = {

Neoechinorhynchus Stiles \& Hassall, 1905 is revised based on both bibliographic studies and the examination of material. The evolution of the concept of the genus is discussed. The concept of Hebesoma Van Cleave, 1928 is also commented upon. The synonymy of the two genera is accepted, with Neoechinorhynchus having priority, and a new diagnosis for Neoechinorhynchus is provided. However, Hebesoma is recognised as a subgenus of Neoechinorhynchus, being differentiated from the nominal subgenus primarily on features of the egg. Of the 109 species studied, seven are transferred to other genera and 14 are considered invalid. Eleven species are assigned to the subgenus Hebesoma and 48 to the subgenus Neoechinorhynchus. Twenty-nine species were not assigned because of incomplete or absence of descriptions of adult females. Keys to assigned and non-assigned species are provided. Notes on the zoogeography of the 88 accepted species are also included.

}, keywords = {Acanthocephala, Amphibians, Animals, Biological Evolution, Female, Fishes, History, 20th Century, Male, Parasitology, Species Specificity, Turtles}, issn = {0165-5752}, author = {Amin, Omar M} } @article {26, title = {Acanthocephaloides irregularis n. sp. (Acanthocephala: Arhythmacanthidae) from marine fishes off the Ukrainian Black Sea coast.}, journal = {Syst Parasitol}, volume = {80}, year = {2011}, month = {2011 Oct}, pages = {125-35}, abstract = {

Acanthocephaloides irregularis n. sp. (Arhythmacanthidae) is described from four species of marine fishes in the Gulf of Odessa and Sukhyi Lyman, Ukrainan Black Sea waters, making it the tenth species of the genus. The hosts are the combtooth blenny Parablennius zvonimiri (Kolombatovic) (Blenniidae), the mushroom goby Ponticola eurycephalus (Kessler) (Gobiidae), the tubenose goby Proterorhinus marmoratus (Pallas) (Gobiidae) and the black-striped pipefish Syngnathus abaster Risso (Syngnathidae). The new species is most similar to its closest relative, Acanthocephaloides propinquus (Dujardin, 1845), in proboscis shape and armature (12 longitudinal rows of 5 hooks) and the shape of the trunk, reproductive system and lemnisci, but differs in having randomly distributed trunk spines. These trunk spines are organised in circular rings of individual spines separated by aspinose zones. The new species is also unique in having an anterior trunk collar, a very large triangular cephalic ganglion, nucleated pouches at the posterior end of the proboscis receptacle, and hooks and spines with roots bearing anterior manubria. Valid and invalid species of Acanthocephaloides Meyer, 1932 are listed and a key to all ten species is included.

}, keywords = {Acanthocephala, Animals, Black Sea, Fish Diseases, Helminthiasis, Animal, Marine Biology, Microscopy, Electron, Scanning, Perciformes, Species Specificity, Ukraine}, issn = {1573-5192}, doi = {10.1007/s11230-011-9312-0}, author = {Amin, Omar M and O{\u g}uz, Mehmet C and Heckmann, Richard A and Tepe, Yahya and Kvach, Yuriy} } @article {13, title = {THE DESCRIPTION AND HOST-PARASITE RELATIONSHIPS OF A NEW QUADRIGYRID SPECIES (ACANTHOCEPHALA) FROM THE PERSIAN TOOTH-CARP, APHANIUS FARSICUS (ACTINOPTREYGII: CYPRINODONTIDAE) IN IRAN.}, journal = {J Parasitol}, year = {2012}, month = {2012 Sep 20}, abstract = {

Abstract Acanthogyrus (Acanthosentis) barmeshoori n. sp. (Quadrigyridae) is described from the Persian tooth-carp, Aphanius farsicus (Teimori, Esmaeili and Reichenbacher, 2011) (Cyprinodontidae) in the Maharlu Lake basin, southern Iran. Aphanius farsicus is an endemic freshwater fish found in streams and springs that drain into Maharlu Lake, Shiraz, Iran. The new species is the smallest of all the 44 known species of the subgenus Acanthosentis Verma and Datta, 1929, measuring between 0.26 and 1.68 mm in length. It is further distinguished by having a short cylindrical proboscis with very long anterior hooks widely separated from very small hooks in 2 very close circles posteriorly (hook length ratio about 4:1). It is separated from 4 other species of Acanthosentis with similar proboscis armature but with less extreme diversification of hook length. The new species is also distinguished by having anterior para-receptacle structures (PRS) and a similar posterior structure like those reported in only 1 other species of Acanthosentis from Japan. Proboscis receptacle single walled with large triangular cephalic ganglion. Testes are large, pre-equatorial, and Saefftigen\&$\#$39;s pouch is prominent. Fourteen to 25 circles of spines cover the anterior 50-70\% of the trunk but a few spines may be present at posterior end of trunk. This is the first species of Acanthosentis where SEM images, showing external morphological details, are provided. Of a total of 357 fish specimens examined between July, 2006 and June, 2007, 173 specimens (48.5 \%) were infected with individuals of the new species. The prevalence of infection decreased with increasing fish size. The parasite was observed all year with the highest abundance and intensity in May while the prevalence was highest in February. The prevalence of acanthocephalans decreased with increasing fish size. While most worms were recovered in fish within the length range of 18-29.9 mm, one of the longest parasites (1.68 mm long) was found in fish within the range of 30-33.9 mm long.

}, issn = {1937-2345}, doi = {10.1645/GE-3247.1}, author = {Amin, Omar M and Gholami, Zeinab and Akhlaghi, Mostafa and Heckmann, Richard} }