Definitions
Anal spines
- Single row of spines on either side of cladoceran postabdomen (e.g., Sididae, Holopedidae, Daphniidae). [In addition, some cladocerans possess lateral spines (e.g., Macrothricidae, Chydoridae).]. [Moore and McCormick, 1969]
- Single row of spines on either side of postabdomen (cladocera) or prominent telsonal spines (Conchostraca). [McLaughlin, 1980]
- (Taxon-specific: Order Cladocera) One in a series of spines along (morphological) dorsal surface of postabdomen.
(syn. anal tooth) [Stachowitsch, 1992] - (Taxon-specific: Order Diplostraca) One of two blade-like, serrate spines projecting from posterodorsal end of telson. [Stachowitsch, 1992]