Dentalium ceratum Dall 1881: 38 Dentalium (Antalis) ceratum : Henderson 1920: 49 Dentalium (Antalis) ceratum ceratum Dentalium (Antalis) ceratum flavum Henderson 1920: 51 Dentalium (Antalis) ceratum tenax Dentalium (Antalis) ceratum varians Scarabino 1973: 196 Dentalium (Dentale) ceratum Antalis ceratum Antalis cerata 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 Caetano, Carlos Henrique Soares Scarabino, Victor Absalão, Ricardo Silva Zootaxa 2006 1267 1 47 679KW Dall, 1881 Dall 1881 [264,584,1262,1288] Scaphopoda Dentaliidae Antalis Animalia Dentaliida 12 13 Mollusca species cerata  +  Dentalium ceratumDall 1881: 38; 1889: 424, pl. 26, fig. 5, pl. 27, fig. 2; Pilsbry & Sharp 1897: 57, pl. 5, figs. 4, 5. +  Dentalium (Antalis) ceratum: Henderson 1920: 49, pl. 7, figs. 4–7; Maury 1922: 35; Turner 1955: 311; Abbott 1974: 385; Penna­Neme 1974: 107.  + Dentalium (Antalis) ceratum ceratum: Henderson 1920: 50, pl. 7, fig. 2.  +  Dentalium (Antalis) ceratum flavumHenderson 1920: 51, pl. 7, fig. 1.  + Dentalium (Antalis) ceratum tenax: Henderson 1920: 52, pl. 7, fig. 3.  +  Dentalium (Antalis) ceratum variansScarabino 1973: 196, pl. 1, fig. 4, 4a–d.  + Dentalium (Dentale) ceratum: Emerson 1952: 3; Warmke and Abbott 1961: 224.  + Antalis ceratum: Scarabino 1979: 110, pl. 1, fig. 2; Scarabino 1985: 198, pl. 2, fig. 1010; 1994: 306, pl. 106, fig. 1498; Redfern 2001: 190, pl. 76, figs. 779.  + Antalis cerata: Steiner and Kabat 2001: 440; 2004: 575.    Typematerial  Lectotype USNM95326 (designated by Henderson, 1920: 50); Paralectotypes USNM887458, 3 dd, MCZ7697, 1 dd, MCZ7706, 5 dd.   Diagnosis Shell to 29 mmlong, slender, regularly tapering, slightly curved, light yellow in posterior half. Nine to twelve round, smooth primary ribs. Straight intercostals spaces, striae forming reticulum. Secondary ribs present. Anterior third smooth. Apex polygonal, V­shaped notch present. Oral aperture circular.   Material examined  Lectotypeand Paralectotype MCZ7697 of  Antalis cerata; Paratypeof  D. ceratum varians MZUSP25488 (ex MHNM2703); IBUFRJ 14259, sta C18, 1 dd; IBUFRJ 10993, sta C38, 1 dd; IBUFRJ 14253, sta A3, 28 dd; IBUFRJ 14276, sta C13, 1 dd; IBUFRJ 14277, sta R4#1, 1 dd; IBUFRJ 14278, sta VV24, 2 dd; IBUFRJ 14279, sta 504, 2 dd   Distribution  USA: Florida, of mouth of Mississippi river, Key West, Sand Key, Triumph reef, Sambo reef; Cuba: off Habana, Martiniqueand Barbados; Yucatan bank; Puerto Rico: Mayaguez; Barbados(Dall & Simpson 1902; Henderson 1920; Sander & Lalli 1982); Brazil: Amapá to Rio Grande do Sul (Penna 1972; Penna­Neme 1974; Fischer­Piette 1973; Scarabino 1975, 1985, 1994); Uruguay: off Rio de la Plata (Scarabino 1973). Living 32 to 338 m(Penna­Neme 1974), shells down to 1960 m.