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Family Solenoceridae
Genus Hadropenaeus Perez Farfante, 1977
Key to species
[Adapted from Perez Farfante, 1977]
Scaphocerite reaching distal end of antennular peduncle or overreaching it by not
more than 0.1 of its own length; prosartema extending only to distomesial extremity
of first antennular segment; thelycum with median protuberance on sternite between
fifth pereopods projecting ventrally, and tooth of median keel of sternite between
fourth pereopods directed anteriorly; petasma with distomesial projection of
ventromedian lobule directed mesially H. affinis
Scaphocerite overreaching antennular peduncle by about 0.25 of its own length;
prosartema conspicuously overreaching distomesial margin of first antennular
segment; thelycum with median protuberance on sternite between fifth pereopods
projecting anteriorly, and tooth of median keel of sternite between fourth pereopods
directed ventrally or posteriorly; petasma with distomesial projection of
ventromedian lobule directed distally H. modestus
Genus Hymenopenaeus Smith, 1882
Key to species
[Adapted from Perez Farfante, 1977]
Eye with cornea hemispherical and disposed such that imaginary line extending
from mesial tubercle parallel to basal margin of ocular peduncle intersects lateral
border of latter far proximal to proximolateral extremity of comea...H. aphoticus
Eye with cornea subreniform and disposed such that imaginary line extending from
mesial tubercle parallel to basal margin of ocular peduncle intersects posterolateral
extremity of cornea H. debilis