Characteristics
1st maxiliped exopod absent well developped small unarticulated 2nd thoracopod exopod well developped absent 2nd thoracopod shape as maxilliped as gnathopod 3-8 thoracopod carpopropodus devided into a few subsegments segmentation increases posteriorly devided into several subsegments not applicable non segmented 3-8 thoracopod endopod carpus propodus distinct fused 3-8 thoracopod propodus two-three subsegments two subsegments unsegmented not applicable segmentation increases posteriorly 3th thoracopod shape forming pereopod forming gnathopod 4th thoracopod shape forming a pereopod forming a gnathopod antennal scale outer margin smooth serrated not applicable antennal scale outer margin setation setose without setae not applicable antennal scale precense present reduced absent antennal scale suturation without apical suture with apical suture not applicable antennal scale terminal spine with spine without spine not applicable eyes normally developped reduced female pleopods uniramous or greatly reduced biramous 1st biramous, remaining reduced labrum symmetric assymetric produced anteriorly mandible lacinia mobilis well developed reduced or absent mandible molar process well developped reduced mandible spines between lacinia mobilis and proces present absent reduced to single spine marsupium 2 pairs 3 pairs 7 pairs maxillule endopod reduced with two articles pleopods fifth pair biramous reduced pleopods fourth pair biramous modified exopod modified endopod pleopods second pair biramous exopod elongated rudimentary pleopods third pair biramous exopod elongated reduced rostrum obtuse elongated broadly rounded telson cleft apex entire apex cleft lateral margins constricted uropod endopod devision undevided distal articulation uropod endopod inner margin inner margin robust setae setose all around uropod endopod statocyst present absent uropod exopod devision complete with proximal articulation with distal articulation uropod exopod setation setose around entire margin outer margin with slender and robust setae outer margin entire outer margin with robust setae | Remaining taxa: Aberomysini Bacescu & Iliffe, 1986
Boreomysinae Holt & Tattersall, 1905
Erythropini Hansen, 1910
Gastrosaccinae Norman, 1892
Heteromysini Norman, 1892
Lepidomysidae Clarke, 1961
Leptomysini Czerniavsky, 1882
Mancomysini Bacescu & Iliffe, 1986
Mysidellinae Czerniavsky, 1882
Mysini Haworth, 1825
Petalophthalmidae Czerniavsky, 1882
Rhopalophthalminae Hansen, 1910
Siriellinae Czerniavsky, 1882
Stygiomysidae Caroli, 1937
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