Tardigrades
These Microscopic Animals are a favorite of all hobbyists. Found in many environments and very resilient they make a great passion project for anyone wanting to learn more about microscopic organisms. Tardigrade in Latin stands for "Slow walker" and when you watch one move you will understand why. Found in so many environments like moss, lichen, beaches and more they are a common favorite of microscope viewers.
​
*This page is brought to you by Social Media Content Creator Micromadi. See below for more information
Observations Know How:
When observing tardigrades in hobby microscopy, it is not usually possible to identify down to the species, or even genus level. Physical traits can vary widely within a family or genus, and many species require high-powered microscopes, DNA analysis, and/or confirmation of features that are difficult or impossible to observe with a low-power microscope. Most tardigrades can be viewed with 40x-100x magnification, although the details will be limited. For higher detailed viewing, 250x-400x is recommended.
Tardigrades are one of those microscopic animals that drive the most interest. From the species diversity to the special traits these animals have, every microscopist drives to learn more. With that being said, tardigrades take time to learn.
Echiniscidae Claws:
Echiniscidae Plates:
Echiniscidae Shed:
Family: Echiniscidae
Size: 0.1 - 1mm (Average 0.5mm)
​​
​
Description:
​Body has a hardened cuticle and dorsal plates giving an “armoured” appearance. Cephalic (head) appendages, dorsal (body/back) cirri (sensory appendages). Generally has 4 claws arranged in a row, and of equal length or close to. Most species only have 2 claws until their first molt. Colour ranges from light yellow to dark red, although some green, brown, and black species have been discovered. Most have red eye spots while some species have black eye spots. The dorsal plates often have small pores that can sometimes be visible under hobby microscopes. The body is thick and round, and they often move slowly compared to smooth-bodied tardigrades. Eggs are laid within the shed cuticle or freely with intricate ornaments depending on the species.
​​
​
Best Place to Find:
​Lichen found on Rocks
Macrobiotidae Tardigrade:
Family: Macrobiotidae
Size: 0.1 - 0.5mm
​​​​
Description:
Body is smooth, generally translucent, double claws (diploclaws) that are generally Y-shaped and symmetrical. Some species have a firm buccal tube, some species have black eye spots, internal organs like the pharynx may be visible because the body is transparent. Eggs are laid freely and ornamental in appearance. Exact species identification requires observing the egg in detail.​
​​​​
Best Place to Find:
Moss and Lichen
Macrobiotidae Stylet:
Macrobiotidae Claws:
Milnesiidae Buccal:
Milnesiidae Claws:
Family: Milnesiidae
Size: 0.5 - 0.7mm (Can reach up to 1.5mm)
​​
​
Description:
​
Carnivorous. The claws have a well separated primary and secondary branch, black eye spots, colour is yellow to transparent, the buccal tube is very wide, the pharynx can lack placoids. Some species can appear elongated. Movement can appear more active as they hunt. Eggs are laid in the shed cuticle.​
​​
​
Best Place to Find:
Moss on Trees and Rocks
Family: Ramazzottiidae
Size: 0.2 - 0.4mm
​​
​
Description:
​
Claws have a long and thin primary branch, can have red-brown pigmentation appearing in bands or rows, the buccal tube is narrow, the pharynx oval to round, body is plump, no eye spots. Movement is quick. Eggs are freely laid and ornamental, exact species identification requires observing the egg in detail.
​​
​
Best Place to Find:
Moss on Trees and Rocks
Ramazzottiidae Tun:
Ramazzottiidae Claws:
Ramazzottiidae Elongated Claw:
Ramazzottiidae Pigmentation:
SuperFamily: Hypsibioidea
Hypsibioidea Tardigrade:
Hypsibioidea Tardigrade:
Size: 0.1 - 0.4mm
​​
​
Description:
​
​Body smooth, usually colourless to lightly pigmented. Claws are asymmetric and variable between legs, often with elongated primary branches. Buccal apparatus can be narrow or broad, sometimes appearing “bendy” in some Hypsibius species. Placoids present but often small or difficult to resolve at low magnification. Found with and without eyespots. Species are difficult to identify beyond superfamily or family level using hobby microscopy.
​​
​
Best Place to Find:
Moss on Trees and Rocks
Hypsibioidea Claws:
Hypsibioidea Stylet:
Hypsibioidea Pharynx:
Disclaimer:
This guide is not a scientific paper, textbook, or authoritative reference. Information shared here is intended for educational and hobbyist purposes only and may be simplified. While care is taken to be accurate, details may lack the depth, precision, or formal terminology used in professional research. If you are looking for academic-level information, medical guidance, or definitive species identification, peer-reviewed sources and trained professionals should always be consulted.
Think of this space as a trailhead rather than a destination. It is a place to gather, learn the basics, ask questions, compare observations, and build confidence as you step into the microscope hobby. Curiosity is the only requirement, and everyone is welcome to explore the micro universe together.