(Order Cladocera):
One of two lateral outpocketings of midgut; located in head posterior to border of esophagus and midgut. An additional unpaired cecum may open into posterior end of digestive tract. (Syn. cecum, hepatic cecum, midgut diverticulum) [Stachowitsch, 1992].
(Order Diplostraca):
One of two lateral outpocketings of midgut near border of esophagus and midgut. Highly branched, with lobe-shaped branches extending ventrally and dorsally and anterior part of head. (Syn. caecum) [Stachowitsch, 1992].
(Order Mysida):
Dorsal cecum, lateral cecum [Stachowitsch, 1992].
(Subclass Cirripedia):
One of up to several pairs of outpocketings of anterior region of midgut. (Syn. digestive gland, gut diverticulum, hepatic cecum) [Stachowitsch, 1992].
(Order Thermosbaenacea):
Pair of elongate digestive glands opening into digestive tract at border of stomach and midgut. Extends posteriorly to end of abdomen. (Syn. hepatopancreas) [Stachowitsch, 1992].
Crustacea glossary. Natural History Museum of Los Angeles County. 2011.