Fossarus orbignyi Fischer, 1864

Cavallari, Daniel Caracanhas, Almeida, Sérgio Mendonça & Simone, Luiz Ricardo L., 2020, Cerithiidae, Litiopidae, Modulidae and Planaxidae (Gastropoda, Cerithioidea) collected by the Marion Dufresne MD 55 expedition in southeastern Brazil, Papéis Avulsos de Zoologia 60, pp. 1-10 : 5

Fossarus orbignyi Fischer, 1864

( Figs. 28‑29 )

Synonymy see Leal (1991). Complement:

Fossarus orbignyi: Matthews & Rios, 1974: 49 ; Houbrick, 1990: 61; Rosenberg et al., 2009: 627.

Fossarus orbignyi Fischer, 1854 [sic]: Absalão, 1989: 3; Rios, 1994: 54, pl. 21, fig. 245, 2009: 111, text fig.

Fossarus ambiguus: Longo et al., 2014: 5 , fig. 5J (non Linnaeus, 1758).

Type locality: Cuba, Guadeloupe, Saint Lucia, Jamaica.

Distribution: from Bermuda to Santa Catarina, Brazil, including oceanic islands Atol das Rocas, Fernando de Noronha and Trindade ( Leal, 1991).

Material examined: Brazil; off Espírito Santo: continental slope of Abrolhos , 18°59′S, 37°50′W, 295 m, MNHN, 1 shell ( MD55 , sta. DC75 , 27/v/1987) ; off Rio de Janeiro: S of Cabo Frio , 23°54′S, 42°10′W, 830 m, MNHN, 1 juvenile shell, MZSP147436 ,same ( MD55 , sta. CB106 , 02/vi/1987) .

Measurements (in mm): W = 1.81; H = 2.08; w = 0.8; h = 1.2.

Remarks: The present records represent a bathymetric expansion from the previously reported range(of 0-40 m; Rosenberg, 2009),going as deep as 830 m. Despite being well-preserved, the present specimens are empty shells and could have been dislodged after death.

Figures

Figures 21-29. Modulidae and Planaxidae collected by the MD55 expedition off SE Brazil; (21-23) Modulus modulus MNHN, sta. DC83 (W 4 mm), (21) apertural, (22) apical and (23) umbilical views; (24-27) Angiola lineata, MNHN, sta. CB76 (L 3.5 mm), (24) right lateral and (25) apertural views, (26) detail of apex (scale = 0.2 mm),(27) apical view;(28-29)Fossarus orbigny,MNHN,sta.DC75 (W 2.08 mm),(28)apertural and (29) apical views.