Helobdella blinni sp. n. (Hirudinida, glossiphoniidae) a new species inhabiting montezuma well, Arizona, USA

Rebecca K. Beresic-Perrins, Fredric R. Govedich, Kelsey Banister, Bonnie A. Bain, Devin Rose, Stephen M Shuster

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

A new leech species Helobdella blinni sp. n., is described from Montezuma Well, an isolated travertine spring mound located in central Arizona, USA. In its native habitat, H. blinni had been previously identified as Helobdella stagnalis (Linnaeus, 1758), which was later reclassified to Helobdella modesta (Verrill, 1872). Similar to the European H. stagnalis and North American H. modesta, H. blinni has six pairs of testisacs, five pairs of smooth crop caecae, one lobed pair of posteriorly-directed crop caecae, one pair of eyes, a nuchal scute, and diffuse salivary glands. However, the pigmentation of this new species ranges from light to dark brown, unlike H. modesta which tends to be light grey in color. Also, H. modesta produces a clutch of 12-–35 pink eggs, whereas H. blinni produces smaller clutches of white eggs (7–14, 0.5 ± 0.15 mm, N = 7) and consequently broods fewer young (1–14, 7 ± 3.3 mm, N = 97). Helobdella blinni are also able to breed year-round due to the constant warm water conditions in Montezuma Well. Their breeding season is not restricted by seasonal temperatures. These species are morphologically similar, however, comparing the COI mtDNA sequences of H. blinni with sequences from nearby populations of H. modesta and other Helobdella species from GenBank indicate that H. blinni is genetically distinct from these other Helobdella populations.

Original languageEnglish (US)
Pages (from-to)137-155
Number of pages19
JournalZooKeys
Volume2017
Issue number661
DOIs
StatePublished - 2017

Fingerprint

Thespesia
new species
Hirudinea
egg albumen
crops
salivary glands
pigmentation
egg
leech
breeding season
travertine
crop
mitochondrial DNA
eyes
breeds
warm water
color
habitats
temperature
water

Keywords

  • Glossiphoniidae
  • Helobdella blinni sp. n
  • Leech
  • Montezuma Well
  • New species

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Animal Science and Zoology

Cite this

Helobdella blinni sp. n. (Hirudinida, glossiphoniidae) a new species inhabiting montezuma well, Arizona, USA. / Beresic-Perrins, Rebecca K.; Govedich, Fredric R.; Banister, Kelsey; Bain, Bonnie A.; Rose, Devin; Shuster, Stephen M.

In: ZooKeys, Vol. 2017, No. 661, 2017, p. 137-155.

Research output: Contribution to journalArticle

Beresic-Perrins, Rebecca K. ; Govedich, Fredric R. ; Banister, Kelsey ; Bain, Bonnie A. ; Rose, Devin ; Shuster, Stephen M. / Helobdella blinni sp. n. (Hirudinida, glossiphoniidae) a new species inhabiting montezuma well, Arizona, USA. In: ZooKeys. 2017 ; Vol. 2017, No. 661. pp. 137-155.
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abstract = "A new leech species Helobdella blinni sp. n., is described from Montezuma Well, an isolated travertine spring mound located in central Arizona, USA. In its native habitat, H. blinni had been previously identified as Helobdella stagnalis (Linnaeus, 1758), which was later reclassified to Helobdella modesta (Verrill, 1872). Similar to the European H. stagnalis and North American H. modesta, H. blinni has six pairs of testisacs, five pairs of smooth crop caecae, one lobed pair of posteriorly-directed crop caecae, one pair of eyes, a nuchal scute, and diffuse salivary glands. However, the pigmentation of this new species ranges from light to dark brown, unlike H. modesta which tends to be light grey in color. Also, H. modesta produces a clutch of 12-–35 pink eggs, whereas H. blinni produces smaller clutches of white eggs (7–14, 0.5 ± 0.15 mm, N = 7) and consequently broods fewer young (1–14, 7 ± 3.3 mm, N = 97). Helobdella blinni are also able to breed year-round due to the constant warm water conditions in Montezuma Well. Their breeding season is not restricted by seasonal temperatures. These species are morphologically similar, however, comparing the COI mtDNA sequences of H. blinni with sequences from nearby populations of H. modesta and other Helobdella species from GenBank indicate that H. blinni is genetically distinct from these other Helobdella populations.",
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N2 - A new leech species Helobdella blinni sp. n., is described from Montezuma Well, an isolated travertine spring mound located in central Arizona, USA. In its native habitat, H. blinni had been previously identified as Helobdella stagnalis (Linnaeus, 1758), which was later reclassified to Helobdella modesta (Verrill, 1872). Similar to the European H. stagnalis and North American H. modesta, H. blinni has six pairs of testisacs, five pairs of smooth crop caecae, one lobed pair of posteriorly-directed crop caecae, one pair of eyes, a nuchal scute, and diffuse salivary glands. However, the pigmentation of this new species ranges from light to dark brown, unlike H. modesta which tends to be light grey in color. Also, H. modesta produces a clutch of 12-–35 pink eggs, whereas H. blinni produces smaller clutches of white eggs (7–14, 0.5 ± 0.15 mm, N = 7) and consequently broods fewer young (1–14, 7 ± 3.3 mm, N = 97). Helobdella blinni are also able to breed year-round due to the constant warm water conditions in Montezuma Well. Their breeding season is not restricted by seasonal temperatures. These species are morphologically similar, however, comparing the COI mtDNA sequences of H. blinni with sequences from nearby populations of H. modesta and other Helobdella species from GenBank indicate that H. blinni is genetically distinct from these other Helobdella populations.

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