Tardigrades of North Carolina
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Comments
Scientific Name:
Family:
BATILLIPEDIDAE
CALOHYPSIBIIDAE
DORYPHORIBIIDAE
ECHINISCIDAE
EOHYPSIBIIDAE
HALECHINISCIDAE
HYPSIBIIDAE
ISOHYPSIBIIDAE
ITAQUASCONIDAE
MACROBIOTIDAE
MICROHYPSIBIIDAE
MILNESIIDAE
MURRAYIDAE
PILATOBIIDAE
RAMAZZOTTIIDAE
RICHTERSIUSIDAE
STYGARCTIDAE
STYRACONYXIDAE
TANARCTIDAE
Order:
APOCHELA
"ARTHROTARDIGRADES"
ECHINISCOIDEA
PARACHELA
Class:
Heterotardigrada
Eutardigrada
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Hypsibiidae Members:
Diphascon higginsi
Diphascon nobilei
Diphascon pingue
Diphascon pinguiforme
Diphascon stappersi
Hypsibius convergens
Hypsibius microps
Hypsibius n. species
Hypsibius n. species (aff. dujardini)
Hypsibius pallidus
Hypsibius roanensis
Mixibius n. species
Mixibius saracenus
1 NC Records
Hypsibius pallidus
Thulin, 1911 - No Common Name
Habitus, lateral, PC
Taxonomy
Class:
Eutardigrada
Order:
Parachela
Family:
Hypsibiidae
Subfamily:
Hypsibiinae
Checklist Number:
1295.0
Synonym:
Hypsibius pallidus
Taxonomic Comments:
Redescribed by Kaczmark & Michalczyk 2009. Very similar to H. microps.
Species Notes:
Terrestrial. Broadly distributed, recorded from scattered states throughout US.
Identification
Online resources:
Online Photographs:
Google
,
GBIF
Species Description:
Body white/transparent. Large eyes present. Cuticle smooth, without pores. Bucco-pharyngeal apparatus of the Hypsibius type (Figs.10, 18). Mouth anteroventral, without lamellae or papulae. Mouth cavity armature absent or not detectable under DIC. Buccal tube rigid and with one bend in posterior part. Ventral buccal lamina absent. Pharyngeal bulb oval with distinct, triangular apophyses, two macroplacoids and without the microplacoid. Macroplacoids in the shape of elongated granules, without constrictions. The first microplacoid clearly longer then the second. Claws of the Hypsibius-type, small and stout (Figs.11–12, 19–20). Internal claws much smaller and in a different shape than the external ones. External claws with slender primary branches connected with the rest of the claw by the thinner, light refracting part. Secondary branches of a similar length or shorter than the basal claws (i.e., primary branches seem to be attached high above the claw base), secondary branches relative lengths vary between 43.1% and 51.5% (mean ± SD: 47.8 ± 2.1%, calculated from all measurable claws, n=19). Internal claws smaller and more robust. Primary branch connected to the rest of the claw without the thinner, light-refracting part. Primary branches of external and internal claws with distinct accessory points. Claws with evidently enlarged bases, but lunules and other cuticular structures on legs absent.
-Kaczmarek & Michalczyk 2009
Body Length:
240-310 microns
Key Characters:
Smooth cuticle, two rows of macroplacoids more or less equal in size but more elongate than rounded (compare to H. microps).
Key Character Images
Drawing from Kaczmarek & Michalczyk 2009
ID Requirements:
Identifiable only by close inspection of key characters or by DNA analysis.
Distribution in North Carolina
Distribution:
County Map:
Clicking on a county returns the records for the species in that county.
Dates:
High Mountains (HM) ≥ 4,000 ft.
Low Mountains (LM) < 4,000 ft.
Piedmont (Pd)
Coastal Plain (CP)
Click on graph to enlarge
Habitats and Life History
Habitats:
Moss.
Abundance:
Rare in Nelson's Roan Mt. inventory.
Diet:
Probably herbivorous.
Reproduction:
Smooth eggs deposited in exuvium.
Observation Methods:
PC and DIC.
Wikipedia
Photo Gallery for
Hypsibius pallidus
- No common name
Photos: 4
Recorded by: Nelson on 1971-10-15
Mitchell Co.
Comment: Buccal apparatus, lateral, DIC
Recorded by: Nelson on 1971-10-15
Mitchell Co.
Comment: Habitus, lateral, DIC
Recorded by: Nelson on 1971-10-15
Mitchell Co.
Comment: Claws from Kaczmarek & Michalchyk 2009
Recorded by: Nelson on 1971-10-15
Mitchell Co.
Comment: Habitus, lateral, PC