egg case

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egg case

[′eg ‚kās]
(invertebrate zoology)
A protective capsule containing the eggs of certain insects and mollusks. Also known as egg capsule.
A silk pouch in which certain spiders carry their eggs. Also known as egg sac.
(vertebrate zoology)
A soft, gelatinous (amphibians) or strong, horny (skates) envelope containing the egg of certain vertebrates.
References in periodicals archive ?
danaefolium and Crinum americanum, and silk from spider webs (n = 20), oothecas (n = 8), and cocoons (n = 6) were also used.
2 Animal Silk (spider silk, oothecas, and different kinds of cocoons) 21 1.
The Ringed Warbling Finch also uses grass; other materials include spider oothecas and silk (Mezquida and Marone 2003).