(Subclass Copepoda):
A spinous process on a swimming leg segment, typically sexually dimorphic (present in male only); ma y originate as produced segmental margin, or may be derived by modification of setal element present in female [Boxshall and Halsey, 2004].
(Class Ostracoda):
Type of valve sculpture: extension of wall (murus) in reticulate pattern. May lead to pore [Stachowitsch, 1992].
Crustacea glossary. Natural History Museum of Los Angeles County. 2011.