Distribution of the Genus Philobdella (Macrobdellidae: Hirudinida), Including New Locality Records from Arkansas and Oklahoma

Moser, William E.; Klemm, Donald J.; Phillips, Anna J.; Trauth, Stanley E.; Neal, Robert G.; Stanley, Jonathan W.; Connior, Matthew B.; Flotemersch, Joseph E.

doi:10.1654/4507.1

Cited by 2 publications

(3 citation statements)

References 7 publications

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“…5). This conforms to the original description of P. floridana which had "about twenty acute teeth" (Verrill 1874), and is compatible with diagnosis of this species prior to this study (Phillips & Siddall 2005;Moser et al 2011).…”

Section: Taxonomic Discussionsupporting

confidence: 90%

“…In this context I concur with, and gratefully acknowledge, the much needed revision by Phillips & Siddall (2005) and Moser et al (2011). As currently understood, this genus consists of two recognized species, P. floridana (Verrill, 1874) which has 20-26 monostichodont teeth on each jaw and currently recorded from south Florida to southeastern North Carolina ; and P. gracilis Moore, 1901, which has 35-45 partially distichodont teeth on each jaw and recorded from the Mississippi drainage system (Moore 1901;Klemm 1982;1985;Phillips & Siddall 2005;Moser et al 2011;Hogan & Sawyer 2018).…”

Section: Introductionsupporting

confidence: 65%

“…The mouthparts of P. floridana differ significantly from those of the only other member of the genus, P. gracilis Moore, 1901, of the Mississippi drainage system. The latter species has 35-45 "partially distichodont" teeth per jaw (Moore 1901a;Klemm 1982;1985;Phillips & Siddall 2005;Moser et al 2011). This raises the biological question whether the two species of Philobdella differ also in their feeding habits, as one might expect.…”

Section: Taxonomic Discussionmentioning

confidence: 99%

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Description of the Southern swamp leech Philobdella floridana (Verrill, 1874) (Annelida: Hirudinea) from the Outer Banks, North Carolina, USA, with a revision of the species

Sawyer¹

2019

Zootaxa

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The jawed leech Philobdella floridana (Verrill, 1874) occurs widely in swamps of the southeastern United States. The discovery of a population of P. floridana in Lake Phelps, an isolated lake in the Albemarle Peninsula in the Outer Banks region of North Carolina, is by far the northernmost record for this species. Description of the Lake Phelps leech in this paper is the first comprehensive account of the internal anatomy of P. floridana. Comparable internal descriptions of P. floridana from other geographic regions are also presented for the first time. This new understanding of the internal features of this species is the basis of a taxonomic revision of P. floridana. All specimens examined in this study possessed remarkably similar jaws and teeth within the range of 22–26 per jaw, regardless of the size or origin of the leech. All mature specimens possessed external copulatory slits and pores which uniquely characterise the genus Philobdella. This study shows for the first time that these external features are attributable to a complex internal network of gastropores emanating from the crop caeca of the genital segments. Nonetheless, the reproductive anatomy of this species is by far the most rudimentary of any Hirudinidae in North America. A major finding of this study is that the Lake Phelps population differs significantly from other known P. floridana in one significant respect. Specifically, the gut has an intimate anatomical association with the nephridia, an enteronephric feature previously unknown within the Hirudinea. At least in this study, enteronephry may be confined to Lake Phelps, leaving open the possibility that this population of P. floridana may be endemic to this relict lake which has a history of endemicity.

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Section: Taxonomic Discussionsupporting

confidence: 90%