Chirocephalidae
Creators: name: Rogers, D. Christopher
Publisher: name: Zenodo
Year: 2003
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Branchiopoda
Anostraca
Chirocephalidae

description: Key to the genera of the Chirocephalidae
1 17 to 19 pairs of thoracopods, abdomen less than one­fourth the length of thorax ..... 2
1’ Eleven pairs of thoracopods, abdomen subequal in length to thorax ........................... 3
2 17 pairs of thoracopods ........................................................................... Polyartemiella
2’ 19 pairs of thoracopods ............................................................................... Polyartemia
3 Male second antennal distal segment without a medial recurved spine; females with brood pouch sub­spherical, or longer than broad......................................................... 4
3’ Male second antennal distal segment with a medial, apically acute, recurved spine; female with two dorsal and two lateral processes on thoracic segment 10; brood pouch expanded laterally, broader than long ......................................................... Artemiopsis
4 Male second antennal proximal segment with one or more anteriobasal appendages; everted portion of penes sub­cylindrical to spiniform .................................................. 5
4’ Male second antennal proximal segment without anteriobasal appendages; everted portion of penes a broad, flattened process with the distal margin crenulate; Palearctic, Ethiopian regions .................................................................................. Branchinectella
5 Males second antennal appendages 0.5 to 2.5 times as long as the proximal second antennal segment........................................................................................................... 6
5' Males second antennal frontal appendages less than 0.5 times the length of the proximal second antennal segment ....................................................................... Linderiella
6 Penes with a terminal spine; male second antennal distal segment not bent medially (may be bent apically), but may be curved medially 65°; brood pouch subspherical to globular.........................................................................................................................7
6' Penes without a terminal spine; male second antennal distal segment bent medially 90° in proximal third; brood pouch longer than broad ............................................ Dexteria
7 Everted portion of penes spiniform, chitinized, recurved, apically acute, with denticles on concave side; Holarctic; ....................................................................... Eubranchipus
7’ Everted portion of penes conical, not chitinized, without denticles; Palearctic.............. .................................................................................................................. Chirocephalus CHIROCEPHALIDAE Daday, 1910 Artemiopsis Sars, 1897
description: Published as part of Rogers, D. Christopher, 2003, The development of the male second antenna in Polyartemiella hazeni (Murdoch, 1884) with a morphological definition of the Chirocephalidae (Crustacea: Anostraca), pp. 1-12 in Zootaxa 251 on pages 7-8, DOI: 10.5281/zenodo.157008