Tardigrades of North Carolina
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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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Doryphoribiidae Members:
Doryphoribius doryphorus
Doryphoribius longistipes
Doryphoribius n. species
Grevenius granulifer
Grevenius kenodontis
Pseudobiotus n. species
Thulinius augusti
Thulinius cf. saltursus
Thulinius romanoi
6 NC Records
Grevenius granulifer
(Thulin, 1928) - No Common Name
Habitus, DIC
Taxonomy
Class:
Eutardigrada
Order:
Parachela
Family:
Doryphoribiidae
Checklist Number:
1580.0
Synonym:
Isohypsibius granulifer, Isohypsibius granulifer granulifer (see Bartels et al. 2021)
Taxonomic Comments:
Transferred from Isohypsibius by Gasiorek et al. 2019. Morphologically identical to European specimens, but no molecular data for further comparisons.
Species Notes:
Freshwater. Appears to be cosmopolitan, scattered reports from various US state.
Identification
Online resources:
Online Photographs:
Google
,
GBIF
Species Description:
Length up to 405 µm. The body is white. Cuticle covered with small thickenings (up to 1.5 µm), irregularly distributed (Pl. XVI d), being the biggest in the middle and the rear of the body. Granulation of legs similar, but distinctly smaller. Mouth opening situated antero-ventrally. Mouth tube 26 µm long (measurements in a specimen 230 µm long) and 2.5 µm wide. Pharynx oval (25 x 22 µm), with small apophyses and three narrow macroplacoids. No microplacoid. The first and the second macroplacoids equal in length (2.5 µm), the third one slightly longer (3.5 µm). All macroplacoids and apophyses are connected with thin, cuticular lists. Claws large, with small accessory spines at the main branches. No bars at the bases of I - III inner claws, no lunules. The outer claws of IVth pair 21 µm long. In exuviae 6-9 smooth eggs. Very rare, hydrophilous species, probably widely distributed in Poland. A geopolitan element.
-Dastych 1988
Body Length:
Up to 405 microns.
Key Characters:
Three macroplacoids (length: 1=2<3), obvious granules over entire dorsolateral cuticle.
Key Character Images
Drawing from Ramazzotti & Maucci 1983
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:
Freshwater streams.
Abundance:
Common. This species makes up 2.03% of aquatic specimens collected in the Great Smoky Mountains National Park in Bartels' inventory.
Diet:
Unknown, possibly ommnivorous.
Reproduction:
Smooth eggs laid in shed exuvium.
Observation Methods:
PC and DIC
Wikipedia
Photo Gallery for
Grevenius granulifer
- No common name
Photos: 9
Recorded by: Bartels on 2002-04-07
Haywood Co.
Comment: Buccal apparatus, PC
Recorded by: Bartels on 2002-04-07
Haywood Co.
Comment: Claws II and III, PC
Recorded by: Bartels on 2002-04-07
Haywood Co.
Comment: Posterolateral dorsum, note granules especially noticeable along upper edge of cuticle. PC
Recorded by: Bartels on 2002-04-07
Haywood Co.
Comment: Habitus, DIC
Recorded by: Bartels on 2002-04-07
Haywood Co.
Comment: Buccal apparatus, DIC
Recorded by: Bartels on 2002-04-07
Haywood Co.
Comment: Claws IV, DIC
Recorded by: Bartels on 2002-04-07
Haywood Co.
Comment: Claws III, DIC
Recorded by: Bartels on 2002-04-07
Haywood Co.
Comment: Habitus, PC
Recorded by: Bartels on 2002-04-07
Haywood Co.
Comment: Anterolateral view, DIC