Oligomeria Galkin & Golikov, 1985

Geiger, Daniel L., 2019, The Family Seguenziidae Verrill, 1884 in the Northeast Pacific, including a comment on excessive numbers of taxonomic data portals, Zoosymposia 13, pp. 61-69 : 64

publication ID	https://doi.org/10.11646/zoosymposia.13.1.7
publication LSID	urn:lsid:zoobank.org:pub:16D27C71-5A6C-4ADF-AD6C-6B07C2773112
persistent identifier	https://treatment.plazi.org/id/D557D228-F438-FFBA-D58F-FF7DFCF9FE31
treatment provided by	Plazi (2019-11-30 10:53:59, last updated 2024-11-27 18:27:50)
scientific name	Oligomeria Galkin & Golikov, 1985
status

Treatment

Oligomeria Galkin & Golikov, 1985 View in CoL

( Figure 1 View FIGURE 1 E–F)

Oligomeria Galkin & Golikov, 1985: 22 View in CoL . Type species (OD): O. conoidea Galkin & Golikov, 1985 View in CoL . Kurile Islands, Russia.

Description. Shell trochiform biconical, predominant spiral sculpture, umbilicate. Monotypic genus.

Oligomeria conoidea Galkin & Golikov, 1985 View in CoL

( Figure 1 View FIGURE 1 E–F)

Oligomeria conoidea Galkin & Golikov, 1985: 23 View in CoL , figs 1–3. Holotype ZIN 38605. Cape Kitov , Urip, Kurile Islands, Russia, 150 m.

Description. Shell to 4.7 mm, trochiform biconical; spiral cords or carinated cords, ~6 stronger ones on shoulder, ~15 weaker ones on base; faint axial sculpture predominantly on early whorls, umbilicus open, no periumbilical cord, no funiculus; columellar wall somewhat thickened, aperture subquadratic.

Distribution. Kurile Islands, Russia, to Aleutian Islands, Alaska (179˚W). 88– 220 m.

Remarks. The strength of the spiral sculpture varies, but is not sufficient to warrant taxonomic recognition, particularly giving the limited material available.

References

Galkin, Yu. I. & Golikov, A. N. (1985) New genus and species of gastropods of the family Trochidae from the northwestern pacific. USSR, Academy of Sciences, Proceedings of the Zoological Institute, Leningrad, 135, 22 - 25.

Figures

FIGURE 1. A–B. Carenzia golikovi Geiger, 2017. A. 5180 m, Abyssal plain W of Oregon, S of Gulf of Alaska, Alaska (approximately 45° N, 153.8° W) (LACM 3317, holotype), 5.3 mm. B. 5100 m, Aleutian Trench, Alaska [near western end of chain], (52° 12'N, 175° 44'E) (LACM 3318, paratype). C. Carenzia inermis Quinn, 1983. 2820 m, Cascadia Abyssal Plain, off Oregon (LACM 1806, holotype), 6.8 mm. D. Asthelys careyi Geiger, 2017. 5180 m, abyssal plain W of Oregon, S of Gulf of Alaska, Alaska (approximately 45° N, 153.8' W) (LACM 3320, holotype), 7.0 mm. E–F. Oligomeria conoidea Galkin & Golikov, 1985. E. 166 m, S of Attu Island, Aleutian Islands, Alaska (LACM 1997-163.7), 5.9 mm. F. 219 m, NE of Semisopochnoi Island, Aleutian Islands, Alaska (LACM Station 86-330), 4.7 mm.