Stenocypridini

Right valve of female Acocypris capillata, internal view, from Martens (2001).

Belongs within: Cyprididae.

The Stenocypridini are a tribe of freshwater ostracods including both sexually and parthenogenetically reproducing species. The furca is asymmetrical in members of the genera Stenocypris and Chrissia but symmetrical in Ampullacypris, Stenocypria and Acocypris. Species of Acocypris have the carapace valves hairy with several long setae arising from the posterior part of the valves (Martens 2001).

Characters (from Martens 2001): Mostly elongate and laterally flattened species, with no inwardly displaced selvage, valves with or without marginal septa. Rome organ on antennule small or medium-sized (never longer than segment), consisting of one part only; second segment of maxillular palp rectangular, with length 1.5-3 times the distal width; setae dl and d2 on second thoracopod subequal; furcae symmetrical or asymmetrical, sometimes strongly so, and with or without proximal seta.

<==Stenocypridini
    |--Ampullacypris de Deckker 1981 M01
    |    `--*A. oblongata (Sars 1896) [=Cypris oblongata] M01
    |--Stenocypria Müller 1901 M01
    |    `--*S. fischeri (Lilljeborg 1883) [=Cypris fischeri] M01
    |--Acocypris Vávra 1895 M01 [=Arcocypris (l. c.) M61]
    |    |--*A. capillata Vávra 1895 [incl. Parastenocypris unispinosa Onyedineke 2000] M01
    |    |--A. hyalina (Lowndes 1931) M01
    |    `--A. stenocyproides Klie 1938 M01
    |--Stenocypris Sars 1889 M01
    |    |--S. major (Baird 1859) [incl. Cypris malcolmsoni Baird 1886, *S. malcolmsoni] M01
    |    |    |--S. m. major [incl. S. major okuboi Petkovski & Meisch 1996] M01
    |    |    `--S. m. sketi Petkovski & Meisch 1996 M01
    |    |--S. exigua Rome 1953 DH86
    |    |--S. intermedia Klie 1932 [incl. S. bolieki Ferguson 1962, S. macedonica Petkovski & Meisch 1996] M01
    |    |--S. leleupi Harding 1953 DH86
    |    `--S. thysvillensis Harding 1953 DH86
    `--Chrissia Hartmann 1957 [incl. Gesa Hartmann 1957; Parastenocypris Hartmann 1964] M01
         |--*C. levetzovi Hartmann 1957 M01
         |--‘*Parastenocypris’ canaliculata Hartmann 1964 [incl. Chrissia monodi indica Hartmann 1964] M01
         |--‘*Gesa’ dubia Hartmann 1957 M01
         |--C. hodgsoni (Sars 1924) M01
         |--‘Parastenocypris’ icosacanthus (Lowndes 1931) M01
         |--‘Parastenocypris’ junodi (Delachaux 1919) M01
         |--C. monodi (Gauthier 1930) M01
         |--‘Parastenocypris’ pectinata (Sars 1924) M01
         `--C. vittata Okubo 1974 M01

*Type species of generic name indicated

REFERENCES

[DH86] Danielopol, D. L., & G. Hartmann. 1986. Ostracoda. In: Botosaneanu, L. (ed.) Stygofauna Mundi: A Faunistic, Distributional, and Ecological Synthesis of the World Fauna inhabiting Subterranean Waters (including the Marine Interstitial) pp. 265–294. E. J. Brill/Dr W. Backhuys: Leiden.

[M01] Martens, K. 2001. Taxonomy of the Herpetocypridinae (Ostracoda, Cyprididae). Crustaceana 74 (3): 295–308.

[M61] Moore, R. C. 1961. Supplement—USSR treatise on Ostracoda. In: Moore, R. C. (ed.) Treatise on Invertebrate Paleontology pt Q. Arthropoda 3: Crustacea: Ostracoda pp. Q422–Q429. Geological Society of America and University of Kansas Press.

Last updated: 28 September 2020.