(Class Ostracoda):
Along inner margin of valve, space formed between outer lamella and thickened part (duplicature) of inner lamella [Stachowitsch, 1992].
(Class Ostracoda):
In Podocopa a marginal cavity between the outer valve lamella and calcified part of the inner valve lamella, extending from the line of concrescence to the inner margin, housing epidermal, glandular and sometimes reproductive tissues. (Syn. vestibulum) [Cohen, Peterson, and Maddocks, in press].
(Class Ostracoda):
Space between duplicature and outer lamella [McLaughlin, 1980].
Crustacea glossary. Natural History Museum of Los Angeles County. 2011.