Internal hard parts of some decapods consisting mainly of endophragms [Moore and McCormick, 1969].
(Order Anostraca):
Term occasionally applied to various more rigid internal structures serving as sites of muscle attachment [Stachowitsch, 1992].
(Order Decapoda):
Internal skeletal structure of head and thorax (cephalothorax). When fully developed, consists of complex system of fused projections (endopleurites, endosternites). (Syn. endophrogmal skeleton, endophragmal system) See: exoskeleton [Stachowitsch, 1992].
(Subclass Copepoda):
In head, weakly developed internal skeleton consisting of two endosternites [Stachowitsch, 1992].
(Class Ostracoda):
Thin internal skeleton of body; forms complex framework supporting limbs and caudal rami [Stachowitsch, 1992].
Crustacea glossary. Natural History Museum of Los Angeles County. 2011.