Paradentalium disparile ( Orbigny, 1853 ) Orbigny, 1853

Caetano, Carlos Henrique Soares, Scarabino, Victor & Absalão, Ricardo Silva, 2006, Scaphopoda (Mollusca) from the Brazilian continental shelf and upper slope (13 º to 21 ºS) with descriptions of two new species of the genus Cadulus Philippi, 1844, Zootaxa 1267, pp. 1-47 : 11

Paradentalium disparile ( Orbigny, 1853) n.comb.

Figs. 11–15

+ Dentalium disparile Orbigny 1853: 202 , pl. 25, figs. 14–17; Dall 1889: 424; Scarabino 1973: pl. 1, fig. 8; Matthews and Rios 1974: 47.

+ Dentalium (Antalis) disparile: Pilsbry and Sharp 1897: 56 , pl. 14, figs. 16–21; Henderson 1920: 47, pl. 6, figs. 4–8; Maury 1922: 35; Haas 1953: 203; Lange de Morretes 1949: 53; Turner 1955: 311; Penna 1972: 230; Penna­Neme 1974: 111; Abbott 1974: 385, fig. 4505; Almeida and Oliveira 2000: 48, fig. 2.

+ Dentalium (Dentale) disparile: Rios 1970: 144 .

Dentalium (Heteroschismoides) callithrix (non Dall 1889): Penna 1972: 231.

+ Antalis disparile: Scarabino 1985: 198 , pl. 72, fig. 1012; 1994: 306, pl. 106, fig. 1500; Díaz and Puyana 1994: 256, pl. 71, fig. 1040; García­Valencia and Díaz 2000: 79; Steiner and Kabat 2001: 440; 2004: 584.

Type material

Syntypes BMNH 1854.10.4.465, 3 dd.

Type locality

Martinique (by original designation).

Diagnosis

Shell up to 40 mm long, white, gently curved. Six smooth primary ribs, one in the concave side, four laterally, one ventrally irregular hexagonal apical section. Oral section subcircular. Secondary ribs present. Pipe often observed at apex.

Material examined

IBUFRJ 7744, sta D30, 19 lv; IBUFRJ 8060, sta AV27, 7 lv; IBUFRJ 8068, sta VV29, 3 dd; IBUFRJ 8079, sta AV28, 82 lv; IBUFRJ 9091, sta C66, 10 dd; IBUFRJ 10171, sta C67, 1 dd; IBUFRJ 10380, sta C5, 2 dd; IBUFRJ 10484, sta VV24, 5 dd; IBUFRJ 14299, sta C65, 6 dd; IBUFRJ 14300, sta VV31, 1 dd.

Distribution

USA: Florida; West Indies: Sabanilla; Cuba; Trinidad ( Henderson 1920; Gray 1854; Turner 1955); Colombia ( García­Valencia & Díaz 2000); Brazil: Amapá to Santa Catarina ( Henderson 1920; Jaeckel 1927; Rios 1970; Penna 1972; Penna­Neme 1974; Scarabino 1985, 1994). Living 5 to 50 m ( Penna 1972), shells to 103 m.

Figures

FIGURES 1 – 19. Genus Dentalium and Paradentalium. (1 – 5) Dentalium laqueatum, (1) IBUFRJ 14233, 40 mm, (2 – 5) IBUFRJ 14238, 27 mm; (6 – 10) Paradentalium gouldii, (6) Paralectotype MCZ 7707, (7 – 10) IBUFRJ 10796, 10 mm; (11 – 15) Paradentalium disparile, (11 – 13) IBUFRJ 7744, 36 mm, (14 – 15) other specimen from the same lot exibiting the apical pipe, 29 mm; (16 – 19) Paradentalium infractum, IBUFRJ 14240, 45 mm. Scale bar = 100 m.