Distribution. From off southwestern Portugal to the Adriatic in 90-440 m.
Remarks. «Cyclostrema bithynoides J EFFREYS MS», was recorded from Palermo, 190 m by MONTEROSATO (1875,1878,1880). In the latter reference it was briefly characterised thus: «Similar to JEFFREYS' trochoides from Norway and the coast of Portugal, but more globular and with more narrow umbilicus». The identity of Lissomphalia bithynoides (MONTEROSATO) was demonstrated by GAGLINI (1987), and the name has to be used. On account of this, MONTEROSATO should be quoted as author since he used the name in another sense than JEFFREYS (1883a), whose species belongs to Anekes and has a finely and irregularly striated sculpture (Holotype Fig. 18C-D). That species is here renamedAnekesinflata, seep. 165.
SCHIRO' (1971b) figured «c. bithynoides» from Palermo, 190 m (probably one of MONTEROSATO specimens).
BOGI & NOFRONTs SEM photos show beyond any doubts that Anekes sabellii is based on the same species as that MONTEROSATO's brief description was founded upon. They also agreed thatA. sabellii was among the specimens in ZMR identified as bithynoides by MONTEROSATO, but questioned the identity with the «real Cyclostrema bithynoides», evidently referring to the species later described by JEFFREYS.
«Margarites minutula (JEFFREYS, 1883»> was recorded by CECALUPO & GIUSTI 1986:24, fig. 1, and seems to be based onL. bithynoides. It originates from southwest of Capraia, 400-440 m depth.
«Rissoellaglobularis JEFFREYS, 1852» was reported from the Central Adriatic, 150 m and from the Gulf of Naples, 150 m by BOGI & NOFRONI (1986:154). Both these records seem to be based on Lissomphalia bithynoides (BOGI & No-FRONI 1989).
(Rissoella globularis is a northern species, of which I have seen no specimens taken south of Great Britain. It was well figured by FRETTER & GRAHAM (1978:fig. 184). FASULO (1989:20) concluded that the only additional Mediterranean record of R. globularis (PALAZZI 1983:98) was not to be relied on, an opinion I share.)