Pistocythereis sp.

Chitnarin, Anisong, Forel, Marie-Béatrice & Tepnarong, Prachya, 2023, Holocene ostracods (Crustacea) from a whale-fall excavation site from the Chao Phraya delta, Central Thailand, European Journal of Taxonomy 856 (1), pp. 120-151 : 138

Pistocythereis sp.

Fig. 7F

Dimensions

L = 0.670 –0.778 millimeters; H = 0.330 –0.400 millimeters; H/L = 0.49–0.54.

Remarks

Five specimens of Pistocythereis sp. were found from samples 20SS02A, 02B, 03A. They can be differentiated from Keijella gonia by the larger carapace without posteroventral spine at intersection of vertical and horizontal muri.

Figures

Fig. 7. Holocene ostracods from Samut Sakhon Province, Central Thailand. A–E. Keijella gonia Zhao & Whatley, 1989. A. Carapace, left lateral view, SUT-20SS-C310. B. Carapace, left lateral view, SUT-20SS-C311. C. Carapace, left lateral view, SUT-20SS-C312. D. Carapace, right lateral view, SUT- 20SS-C288. E. Carapace, right lateral view, SUT-20SS-C286. – F. Pistocythereis sp. Carapace, right lateral view, SUT-20SS-C305. –G–I. Stigmatocythere bona Chen in Hou, Chen, Yang, Ho, Zhou & Tian, 1982. G. Carapace, right lateral view, SUT-20SS-C201. H. Carapace, left lateral view, SUT-20SS-C200. I. Valve, internal view of right valve, SUT-20SS-C190. – J–O. Keijella multisulcus Whatley & Zhao, 1988. J. Valve, juvenile, right lateral view, SUT-20SS-C231. K. Valve, juvenile, internal view of right valve, SUT-20SS-C213. L. Carapace, male, left lateral view, SUT-20SS-C225. M. Carapace, female, left lateral view, SUT-20SS-C242.N. Carapace, female, left lateral view, SUT-20SS-C206. O. Carapace, female, left lateral view, SUT-20SS-C243. Scale bars = 0.1. mm.