Rudjakov J.A. 2014. On the distribution of the deepwater ostracode Archiconchoecilla maculata (Chavtur, 1977) (Crustacea: Ostracoda: Myodocopa: Halocyprida: Archiconchoecinae) // Invertebrate Zoology. Vol.11. No.2: 347–352 [in English].

Department of Invertebrate Zoology, Museum of Comparative Zoology, Harvard University, 26 Oxford Street, Cambridge, Massachusetts 02138-2902, USA, e-mail: rudyakov@fas.harvard.edu

ABSTRACT: Based on unpublished data, the planktonic halocyprid ostracode Archiconchoecilla maculata (Chavtur, 1977) has a much wider geographical and depth range than noted by Chavtur (1977) and Chavtur and Stovbun (2003), based on the specimens collected by RV Vityaz in the Kurile-Kamchatka Trench between 7000–8700 m depth. According to an unpublished manuscript by Rudjakov (1960) this species was found in three samples collected by RV Vityaz in the Bougainville and Mariana Trenches between 2000–8000 m depth. Judging by its depth distribution, the species should be placed into deep-water near-bottom fauna. However, some individuals can ascend to much shallower depths and allow genetic material exchange among populations inhabiting separate deep-water trenches.

KEY WORDS: Ostracoda, Myodocopa, Halocyprida, Archiconchoecia, Archiconchoecilla, deep-sea fauna, near-bottom, Pacific.

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