Crustacea glossary. Natural History Museum of Los Angeles County. 2011.
preoral sting — (ARTHROPODA: Crustacea) In Branchiura, a retractile piercing structure with a basal poison gland, between the maxillulae (suction discs) … Dictionary of invertebrate zoology
poison gland — (Subclass Branchiura): Gland located at base of preoral sting; opens at tip of sting via duct [Stachowitsch, 1992] … Crustacea glossary
cephalon — A term that refers to the head of a crustacean [Brusca and Brusca, 2002]. Anterior region of the body bearing the antennules, antennae, eyes, mandibles, maxillules, and maxillae [Holdich and Jones, 1983]. Anteriormost tagma, bearing eyes, mouth,… … Crustacea glossary
proboscis — (Subclass Branchiura): On underside of cephalothorax, unpaired median projection posterior to preoral sting. Retractile, enclosing mouth and surrounding labrum, mandibles, and paragnaths. Supported distally by series of chitinous bars. Used to… … Crustacea glossary
scorpion — scorpionic /skawr pee on ik/, adj. /skawr pee euhn/, n. 1. any of numerous arachnids of the order Scorpionida, widely distributed in warmer parts of the world, having a long, narrow, segmented tail that terminates in a venomous sting. 2. the… … Universalium
Chelicerata — Temporal range: 445–0 Ma … Wikipedia
Spider — Taxobox name = Spiders image width = 250px image caption = an Orb weaver spider, Family: Araneidae regnum = Animalia phylum = Arthropoda subphylum = Chelicerata classis = Arachnida ordo = Araneae ordo authority = Clerck, 1757 diversity link =… … Wikipedia
