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Family SARSIELLIDAE Brady & Norman, 1896

Diagnosis

Anterior of carapace generally rounded in lateral view without incisure or with very shallow incisure; incisure generally deeper in males; carapace of males often more elongate and sometimes considerably smaller than carapace of females; surface ornamentation varied, but generally similar in males and females; caudal process usually present, but varying in degree of development; posterior infold with 2 or more brushlike bristles dorsal to caudal process; surface with few hairs or abundant hairs of several types; hairs generally abundant around free margins; single small bristle present on anterior infold near middle of valve margin. First antenna: 3rd and 4th segments fused without suture separating them; sensory bristle of 5th segment of female limb bare or with 2 to 3 short filaments; sensory bristle of 5th segment in male with numerous filaments. Second antenna: endopod in female either 1- or 2-segmented: 1-segmented endopods with 1 or 2 anterior proximal bristles, and on some species also 2 posterior proximal bristles, or 1 terminal bristle; 2-segmented endopods with 2 or 3 anterior bristles on 1st segment and 1 (rarely 2) terminal bristle on small 2nd segment. Endopod in male 1-segmented with several bristles or 3-segmented with 3rd segment reflexed on 2nd. Mandibula: endopod of female with terminal claw on each segment; endopod of male with terminal claw only on 3rd segment. Maxilla: exopod with 2 or 3 bristles. Endopod of female 2-segmented with 2 stout terminal alpha- and beta-bristles on 1st segment and 5 stout bristles along terminal margin of 2nd segment; endopod of male reduced with weakly developed bristles. Fifth limb: only one segment with one bristle present. Sixth limb: each limb with 1 to 4 segments; terminal segment narrow with 6 to 14 bristles. Seventh limb: limb in males sometimes same as in females, sometimes reduced; sometimes terminal combs missing in both sexes. Furca: different in different genera.

 

ID Keys

Keys to subfamilies and genera in Kornicker (1986, 1991).

 

History of changes

Note that this list may be incomplete for dates prior to September 2013.
Published As part of group Action Date Action Type Compiler(s)
28-Mar-2012 28-Mar-2012 MODIFIED
30-Mar-2010 MODIFIED