Cerithiopsis beneitoi Rolán, Espinosa & Fernández-Garcés, 2007: 6 Cerithiopsis beneitoi Rosenberg et al. (2009: 644 Zhang (2011: 105 Redfern (2013: 139 Cecalupo & Perugia (2020: 37 Nanopsis beneitoi Cecalupo & Robba (2010: 53 Costulopsis beneitoi Cecalupo & Robba (2019: 66 Unraveling another of the ‘ Big Fiveʹ: new species and records of Cerithiopsidae from Brazil (Caenogastropoda: Triphoroidea) Pimenta, Alexandre Dias Faria, Raquel Garofalo De Souza Figueira, Raquel Medeiros Andrade Fernandes, Maurício Romulo Zootaxa 2024 2024-08-15 5494 1 1 71 SYS4 Rolan, Espinosa & Fernandez-Garces, 2007 Rolan, Espinosa & Fernandez-Garces 2007 [151,953,510,537] Gastropoda Cerithiopsidae Cerithiopsis Animalia 29 30 Mollusca species beneitoi  ( Fig. 14A–E)      Cerithiopsis beneitoi Rolán, Espinosa & Fernández-Garcés, 2007: 6, Fig. 13–16, 61–62.    Cerithiopsis beneitoi:Rolán et al.(2013: 9, fig. 5);  Rosenberg et al.(2009: 644[not figured];  Zhang (2011: 105, fig. 319);  Redfern (2013: 139, fig. 400);  Cecalupo & Perugia (2020: 37, pl. 19 Fig. 1a–d).    Nanopsis beneitoi:  Cecalupo & Robba (2010: 53, mentioned on a list of species for new generic allocation).    Costulopsis beneitoi:  Cecalupo & Robba (2019: 66, mentioned on a list of species for new generic allocation).   Type material.  Holotype: MNCN 15.05/47008.    Typelocality. Cuba, Rancho Luna, Cienfuegos Bay,   45 m.  Material examined.  The holotypeand: Brazil: -- off Rio de Janeiro state: HAB 13 sta. H1: MNRJ 16572[1*p]; HAB 13 sta. H2: MNRJ 16571[1*p]; RAP IGsta. 34, exUERJ 5256 [1].   Remarks.  Cerithiopsis beneitoican be distinguished from other similar Caribbean species by its small (up to 2.9 mmlong) and mainly white shell, with faintly darker bands on the adapical and subperipheral cords, and in having equally spaced spiral cords on the teleoconch (Rolán et al.2007). All these features are observed in shells from Brazildespite they reach a maximum length of 2.0 mm ( Fig. 14A–C). The material from the Caribbean shows a thin spiral cord on the second and third whorls of the protoconch (Rolán et al., 2007, 2013), which could not be observed in the illustrated shell from Brazildue to the eroded condition of the protoconch ( Fig. 14D–E), although the minute riblets in the suture can be seen ( Fig. 14F). A very similar species was described from Guadeloupeand Martinique:  Cerithiopsis michellegalli Cecalupo & Perugia, 2020, with similar size, colour and protoconch. Cecalupo & Perugia (2020)did not provide a comparison to  C. beneitoi, and both species seem to be mainly distinguished by the darker brown bands and apparently a more developed adapical spiral cord in  C. michellegalli, especially if compared to Caribbean shells of  C. beneitoi(Rolán et al. 2007).  Geographic and bathymetric distribution.Disjunct distribution, in the Tropical Northwestern Atlantic Province (Bahamian, Southwestern Caribbean, Greater Antilles, Eastern Caribbean ecoregion), and in the boundary of the Tropical Southwestern Atlantic Province and the Warm Temperate Southwestern Atlantic Province ( Rio de Janeiro state). From 4 m(Rolán et al.2007) to 59 m( Cecalupo & Perugia 2020). [332,690,808,835] MNCN 29 30 MNCN 15.05 1 holotype [199,857,844,871] Cuba 45 Bay Rancho Luna 29 30 45 Cienfuegos holotype IG Brazil The 29 30 MNRJ 16572, MNRJ 16571 1 Rio de Janeiro holotype