Cithna naticiformisJeffreys, 1883a, p. 112, pl. 20, fig. 11-11a [Basis of the current name] Type Locality: Porcupine Exp. 1870: Atl. Sta. 17a Range: 63.92°N to 61.5°N; 27.33°W to 0°W Depth: 1198 to 1836 m (live 1198 to 1836 m) Maximum Reported Size: 2.5 mm References: Waren (1996) DdLlNSEWM
Cithna excavataSykes, 1925, p. 190, pl. 9, fig. 5-5a [Synonym] Type Locality: Porcupine Expedition sta. 17 Maximum Reported Size: 2 mm References: Sykes (1925) M; Warén (1996) s
Adeorbis umbilicatusLocard, 1898, p. 11-12, pl. 2, fig. 1-4 [Synonym] Type Locality: Travailleur, 1880, dragage 14-15, 677-813 m, Golfe de Cascogne Range: 38°N to 35.8°N; 69.5°W to 64°W Depth: 3834 to 4862 m References: Rex & Warén (1982) DdNSEW; Warén (1996) s Comments: Nude name in Jeffreys (1880a: 375) and de Folin (1883: 143).
Partial List of References
Jeffreys, J. G. 1883. On the Mollusca procured during the 'Lightning' and 'Porcupine' Expeditions, 1868-1870. (Part VI) Proceedings of the Zoological Society of London 1883 88-115, pls. 19-20. [True date: post 6 Mar.] Locard, A. 1898. Mollusques Testacés, tome second Expéditions Scientifiques du Travailleur et du Talisman iv + 515, 18 pls. Masson: Paris. Sykes, E. R. 1925. On the Mollusca procured during the "Porcupine" Expeditions, 1869-70. Supplemental notes, part V Proceedings of the Malacological Society of London 16 181-193, pl. 9. [Stated date: -- Apr 1925; true date: pre May 25.]