Strandesia martensi Savatenalinton, 2015

Savatenalinton, Sukonthip, 2024, Two new species of Strandesia Stuhlmann, 1888 (Crustacea: Ostracoda) from Thailand, with first record of a male S. martensi Savatenalinton, 2015, European Journal of Taxonomy 930, pp. 249-276 : 265

publication ID	https://doi.org/ 10.5852/ejt.2024.930.2499
publication LSID	lsid:zoobank.org:pub:5B5CB8B6-8562-4379-8047-CD592D8A1BA0
DOI	https://doi.org/10.5281/zenodo.10964522
persistent identifier	https://treatment.plazi.org/id/03AE8793-FFA6-FFFA-FDA3-FE65FB29ADC2
treatment provided by	Plazi
scientific name	Strandesia martensi Savatenalinton, 2015
status

Treatment

Strandesia martensi Savatenalinton, 2015 View in CoL

Figs 9–11 View Fig View Fig View Fig

Material examined

THAILAND – Amnat Charoen Province • 4 ♂♂, with soft parts dissected in a sealed glycerine slide, valves stored dry in a micropalaeontological slide;Nong Hoi (swamp), Sawang Daen Din District, Sakon Nakhon Province ; 17°38.85′ N 103°59.99′ E; S. Savatenalinton leg.; 18 Nov. 2021; MSU-ZOC.383 to 385 , 388 GoogleMaps • 4 ♂♂, undissected, stored dry in micropalaeontological slides; same collection data as for preceding; MSU-ZOC.386 to 387 GoogleMaps • 2 ♀♀, with soft parts dissected in a sealed glycerine slide, valves stored dry in a micropalaeontological slide; same collection data as for preceding; MSU-ZOC.389 to 390 GoogleMaps • 1 ♀, undissected, stored dry in a micropalaeontological slide; same collection data as for preceding; MSU-ZOC.391 GoogleMaps • several ♂♂, several ♀♀, undissected, kept in 70% ethyl alcohol; same collection data as for preceding; MSU-ZOC.392 GoogleMaps .

Dsecription

MEASUREMENTS (in μm). Asexual female. Cp (n =15): L=865–888, H =553–568, W=410–412; LV (n=2): L=824–853, H =535–541; RV (n= 2): L=800–838, H =524–553. Sexual female. Cp (n =2): L= 798–800, H =550–551; LV (n =2): L=800–803, H =553–555; RV (n=2): L=776–779, H =550– 553. Male. Cp (n=2): L= 735–771, H= 494, W=318; LV (n= 2): L=794–796, H =500–502; RV (n =2): L= 735–738, H =488–491.

CP AND VALVES. As in female (see Savatenalinton 2015), although somewhat smaller ( Fig. 9 View Fig ). All limbs as in female, except for last two segments of A2, T 1 and reproductive organs ( Fig. 10 View Fig ). Penultimate segment of A2 undivided and with claw-like z1 and z2 setae and with claw G1 and G3 reduced to setae; terminal segment with claw Gm modified appearing strong spines on distal half of claw and with claw GM reduced to short seta ( Fig. 10A–B View Fig ); T 1-endopodites forming asymmetrical prehensile palps; left palp ( Fig. 10C View Fig ) anteriorly with elongated, hook-like curved lobe and two apical spines, right palp ( Fig. 10D View Fig ) anteriorly with triangular lobe and two apical spines (one very large).

HEMIPENIS ( Fig. 10E View Fig ). With ms rounded, ls elongated with blunt tip. Postlabyrinthal spermiduct curved, with 2 loops. Zenker organ ( Fig. 10F View Fig ) set with ca 19–22 spiny whorls, length about 3.7 × width, distal and proximal end plates forming crown of petal-like structures.

Locality

Sexual population: Nong Hoi (swamp), Sawang Daen Din District, Sakon Nakhon Province; 17°38.85′ N 103°59.99′ E; collected by S. Savatenalinton, 18 Nov. 2021. Other localities see Table 1 View Table 1 .