Acanthocephala from the Illinois River with Descriptions of Species and a Synopsis of the Family Neoechinorhynchidae

There has been no published record of extensive study upon the Acanthocephala from fresh-water hosts for any part of North America. The only regional studies pursued in this country have been those of Linton (1889, 1891, 1901, and 1905) on the Acanthocephala of marine fishes, from New England southward along the Atlantic Coast. Most of the European studies aside from Zschokke's (1884), and a few others, have been compilations of host records from results of investigations in widely scattered regions. Usually these lists have ignored the geographical distribution of the parasites or have implied for them a distibution equivalent to the distribution of the hosts. Because of inaccuracies in many of the early investigations and the numerous erroneous identifications of European species these lists have comparatively little biological value.published or submitted for publicationis peer reviewe

Sanguinicola maritimus n. sp (Digenea : Sanguinicolidae) from Labridae (Teleostei : Perciformes) of southern Australian waters

A new species of Sanguinicola Plehn, 1905 is described from the marine teleosts Notolabrus parilus (Richardson) and N. tetricus (Richardson) (Perciformes: Labridae) from Western Australian and Tasmanian waters. This host distribution is strikingly anomalous; however, the present material fulfils the morphological criteria of Sanguinicola. S. maritimus n. sp. differs from previously described species in having the combination of a body 1,432-1,701 mu m long, the oesophagus 18.3-21.7% of the body length, the testis occupying 42.8-52.3% of the body length, an oviducal seminal receptacle and Mehlis' gland present, ovoid eggs, and vitelline follicles that extend anteriorly past the nerve commissure, laterally past the lateral nerve chords and posteriorly to the anterior margin of the cirrus-sac. S. maritimus also lacks a protrusible anterior proboscis. It also differs in the combination of host and geographical location, being the first Sanguinicola species from a marine teleost and the first from Australian waters