Abstract
Litosaccus n. g. is erected for Paralecithobotrys brisbanensis Martin, 1974 n. comb. for which an amended description is given. The new genus is morphologically similar to the haploporine Lecithobotrys Looss, 1902 but with a more elongate and cylindrical body; an infundibuliform oral sucker; a thin-walled hermaphroditic sac; a shallow genital atrium; and unequal, cylindrical and elongated caeca. It also resembles Pseudolecithobotrys Blasco-Costa, Gibson, Balbuena, Raga & Kostadinova, 2009, but the only member of that genus has a hermaphroditic sac that is twice the length of the ventral sucker, a hermaphroditic duct with intensely-staining cuboidal cells, an elongate testis, and single or paired caeca. A Bayesian inference analysis of partial 28S rDNA sequences of L. brisbanensis and 24 other haploporoids revealed that L. brisbanensis grouped with other haploporines and placed Intromugil Overstreet & Curran, 2005 in a clade with the chalcinotrematine Saccocoelioides Szidat, 1954 rather than the other seven tested waretrematine species. This analysis represents the first phylogenetic study of the Haploporidae Nicoll, 1914 that incorporates a haploporine from outside of the Mediterranean Sea.
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Acknowledgements
The authors are grateful to the following people for their contributions to the procurement of hosts, assistance in trying to locate type-material and providing accession numbers: Robert Adlard, Mal Bryant, Adam Fletcher, Daniel Geiger, Jeff Johnson, Jason Lally, Joel Martin, Patricia Pilitt, Gabor Racz, and Patricia Sadeghian. From the University of Southern Mississippi, we thank Jean Jovonovich Alvillar and Janet Wright for their assistance with DNA sequencing reactions. The material treated here is based on work supported by the National Science Foundation under grant no. 0529684, Ocean and Human Health Initiative grant no. NA08NOS4730322, and US Fish and Wildlife Service/Mississippi Department of Marine Resources MSCIAP MS.R.798 Award M10AF20151.
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Andres, M.J., Pulis, E.E., Cribb, T.H. et al. Erection of the haploporid genus Litosaccus n. g. and its phylogenetic relationship within the Haploporidae Nicoll, 1914. Syst Parasitol 89, 185–194 (2014). https://doi.org/10.1007/s11230-014-9521-4
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DOI: https://doi.org/10.1007/s11230-014-9521-4