Online Dictionary of Invertebrate Zoology: Complete Work - Best Text

178Maggenti and Gardnercephalic capsule (NEMATA) An internal modification of the cephaliccuticle forming an endoskeletal helmet, often posteriorlydelimited by a distinct groove on the exterior cuticle.cephalic constriction (ARTHRO: Crustacea) In Myastacocarida,a constriction delimiting anterior antennulary part of thehead from the posterior part.cephalic flexure (ARTHRO: Crustacea) In Decapoda, forward,or occasionally upward, deflection of the anterior sterna.cephalic foramen (ARTHRO: Insecta) The posterior or occipitalforamen of the head through which the alimentary canaland other organs pass.cephalic framework (NEMATA: Secernentea) A subcuticularframework that supports the lip region, and to which areattached the stylet protractor muscles.cephalic gland (ARTHRO: Insecta) A gland opening on to thelabium and connecting with the ventral tube by a groove inthe cuticle in the ventral midline of the thorax, that secretsmoisture to aid walking on dry surfaces.cephalic grooves/slits (NEMER) Deep or shallow furrows,lined with a ciliated epithelium, that occur laterally on thesides of the head; thought to be chemosensory.cephalic heart (ARTHRO: Insecta) In Odonata, a specializedpulsating organ that exerts pressure against the egg-shellin hatching and forces out a cap-like operculum; a pulsatingorgan.cephalic hood (MOLL: Bivalvia) A chitinous covering protectingthe anterior adductor muscle at a young burrowing stage.cephalic incision (NEMATA) Anterior extensions of the cephalicsuture dividing the posterior part of the capsule into lobes.cephalic lobes 1. (ARTHRO: Insecta) In embryology, the regionof the prostomium, and usually that of the tritocerebralsomite. 2. (NEMER) Brain lobes on the expanded anteriorregion.cephalic pole (ARTHRO: Insecta) An elongated egg in theovariole aligned with the head of the parent.cephalic region Pertaining to, on, in, or near the head.cephalic rim (ANN: Polychaeta) A flange encircling the head.