Cubalaskeya nivea ( Faber, 2007 )

Pimenta, Alexandre Dias, Faria, Raquel Garofalo De Souza, Figueira, Raquel Medeiros Andrade & Fernandes, Maurício Romulo, 2024, Unraveling another of the ‘ Big Fiveʹ: new species and records of Cerithiopsidae from Brazil (Caenogastropoda: Triphoroidea), Zootaxa 5494 (1), pp. 1-71 : 61

Cubalaskeya nivea ( Faber, 2007)

( Fig. 31 )

Retilaskeya nivea Faber, 2007: 80 , Fig. 1–5 .

Cubalaskeya nivea : Espinosa et al. (2007: 75, fig. 064); Espinosa et al. (2012: 76, fig. 385); Rolán & Fernández-Garcés (2008: 161, pl. 1, figs. 1–7, pl. 2, figs. 8–11, pl. 4, figs. 19–20); Cecalupo & Perugia (2020: 46, pl. 23, figs. 1a–c).

Type material. Holotype: ZMA 4.07 .029 . Paratypes: see Faber (2007).

Type locality. Belize, Carrie Bow Cay , 20 m.

Material examined. Bahamas: Abaco: Great Guana , 11/iv/2005: MNRJ 116073 [5]; Brazil: -- Pernambuco state: continental slope off Pernambuco state (no available locality and depth information): MNRJ 17235 [46*p].

Remarks. Shells of Cubalaskeya nivea from Brazil are very similar to those from the Caribbean ( Faber 2007; Espinosa et al. 2007; Rolán & Fernández-Garcés 2008; Cecalupo & Perugia 2020), in shell shape and microsculpture of the teleoconch and in protoconch morphology.A discrete spiral microsculpture on the larval shell is herein figured for the first time ( Fig. 31H ).

Geographic and bathymetric distribution. Cubalaskeya nivea has a wide geographical range in the Tropical Northwestern Atlantic Province ( Belize, Honduras, Aruba, Curaçao, Cuba, Jamaica, Guadeloupe and Martinique) and in the Tropical Southwestern Atlantic (Pernambuco state). From 6 m ( Cecalupo & Perugia 2020) to 60 m ( Faber 2007).

Figures

FIGURE 1. Cerithiopsis gemmulosa (C. B. Adams, 1850) species complex. A–B: holotype from Jamaica (MCZ 186075); C–D, F, N–O: shells from Rio de Janeiro state (C–D: MORG ex–19330; F: MORG 33005; N–O: MNRJ 26853); E, P–T: shells from Bahia state (E: IBUFRJ 14146; P–Q: MZSP 155546; R–T: MZSP 155508); G–J: shells from Florida (G–H: MNRJ 17992; I–J: BMSM 81286); K: shell from Santa Catarina state (MZSP 8336); L–M: shell from Pernambuco state (MNHN). Lengths of whole shells: A–B: 5.1 mm; C–D: 4.7 mm; E: 4.5 mm; F: 4.3 mm; G–H: 5.3 mm; I–J: 3.9 mm; K: 4.9 mm; L–M: 3.4 mm; N–O: 3.0 mm; P–Q: 3.0 mm; R: 3.7 mm; S–T: 3.4 mm. Scale bar: 1 mm. Horizontal lines indicate that the two images are from the same shell.

FIGURE 2. Cerithiopsis gemmulosa (C. B. Adams, 1850) species complex. A–B: protoconch of shell from Florida (BMSM 81286; B: magnification of figure 1J); C: protoconch of shell in figure 1M (MNHN); D: protoconch of shell from Rio de Janeiro state (MNRJ 26853); E: protoconch of shell in figure 1Q (MZSP 155546); F: protoconch of shell in figure 1O (MNRJ 26853); G: protoconch of shell from Rio de Janeiro state (MNRJ 34238); H: body whorl of holotype (MCZ 186075); I: body whorl of shell in figure 1D (MORG ex–19930); J: body whorl of shell in figure 1H (MNRJ 17992; K: body whorl of shell in figure 1J (BMSM); L: body whorl of shell from Pernambuco state (MNHN); M: body whorl of shell in figure 1O (MNRJ 26853). Scale bars: A–G: 100 µm; H–M: 1 mm.

FIGURE 3. Cerithiopsis lata (C. B. Adams, 1850). A–B: holotype, from Jamaica (MCZ 186134); C: holotype of Cerithiopsis buijsei De Jong & Coomans, 1988, from Curaçao/Aruba (ZMA 387069); D–E: shells from Bahia state (IBUFRJ 12912, IBUFRJ 12916, respectively); F: shell from Pernambuco state (MNHN); G–J, K–M: shells from Rio de Janeiro state (G–J: MNRJ 15405; K–M: MNRJ 33388); I–J: body whorl and detail of teleoconch sculpture of shell in H; L–M: protoconch and detail of sculpture of shell in K; N: protoconch of shell from Espírito Santo State (MNRJ 16263). Lengths of whole shells: A–B: 2.1 mm; C: 2.1 mm; D: 2.2 mm; E: 2.2 mm; F: 2.0 mm; G: 2.0 mm; H: 2.1 mm; K: 2.3 mm. Scale bars:A–H, K: 1 mm; I–J: 200 µm; L–N: 100 µm. Horizontal line indicates that the two images are from the same shell.

FIGURE 4. Cerithiopsis io Dall & Bartsch, 1911. A–B, E–H: shell from Rio de Janeiro state (A–B: MNRJ 61124; E: MZSP 46336; F–H: UERJ 4675); C–D: shells from São Paulo state (MZSP 81013); G–H: body whorl and protoconch of shell in F. Lengths of whole shells: A–B: 2.7 mm; C: 2.7 mm; D: 2.4 mm; E: 1.9 mm; F: 2.0 mm. Scale bars: A–F: 1 mm; G: 500 µm; H: 100 µm. Horizontal line indicates that the two images are from the same shell.

FIGURE 5. Cerithiopsis pisinna sp. nov. A: holotype, from Espírito Santo State (MNRJ 15391); B–D: paratype, from type locality (IBUFRJ 14137); C–D: body whorl and protoconch of paratype. Lengths of whole shells: A: 2.6 mm; B: 2.5 mm. Scale bars: A–B: 1 mm; C–D: 200 µm.

FIGURE 31. Cubalaskeya nivea (Faber, 2007). Shell from Pernambuco state (MNRJ 17235). C: body whorl; D: detail of microsculpture on teleoconch; E–F: protoconch; G–H: detail of protoconch sculpture. Length of whole shell: A–B: 5.4 mm. Scale bars: A–B: 1 mm; C: 500 µm; D, H: 20 µm; E–G: 100 µm.