Cribellum
Videos
Cribellum literally means 'little sieve', and in biology the term generally applies to anatomical structures in the form of tiny perforated plates.
Progradungula otwayensis (Gradungulidae) holding a snare made from silk spun from its cribellum
Platycryptus Undatus Female
Spinneret
Videos
A spinneret is a silk-spinning organ of a spider or the larva of an insect. Some adult insects also have spinnerets, such as those borne on the forelegs of Embioptera. Spinnerets are usually on the un
Cribellum
…frustule, or outer layer. In certain groups of spider species, so-called cribellate spiders, the cribellum is a silk spinning organ. Unlike the usual spinnerets of spiders, the cribellum consists of one or more plates covered in thousands of tiny spigots, tiny holes that hardly project from the surface, in…
The spinnerets of an Australian garden orb weaver spider.
Black spinneret of Phidippus adumbratus visible below red abdomen
The compact spinnerets of Argiope bruennichi; placed ventrally below the posterior.
A barn spider encases her prey in silk emanating from her spinneret seen in the foreground.