Figs 1-12.
Bathoxiphus ensiculus (Jeffreys, 1877Jeffreys, J. G. 1877. New and peculiar Mollusca of the order Solenoconchia procured during the Valorous expedition. Annals and Magazine of Natural History 4(19):154-158.). 1-6, syntypes (NHMUK 1877.11.28.56): 1, 2: same shell; 3, 4: same shell; 5, 6: same shell; 7-12, syntypes (NHMUK 1885.11.5.1344-46): 7, 8: same shell; 9, 10: same shell; 11, 12: same shell. 1, 3, 5, 7, 9, 11, entire shell, lateral view; 2, 4, 6, 8, 10, 12, detail of ventral aperture. Scale bars: 1, 3, 5, 7, 9, 11= 5 mm; 2, 4, 8, 10, 12= 1 mm; 6= 0.5 mm. Credits: K. Webb (NHMUK photographic unit).
Figs 13-18.
Bathoxiphus ensiculus (Jeffreys, 1877Jeffreys, J. G. 1877. New and peculiar Mollusca of the order Solenoconchia procured during the Valorous expedition. Annals and Magazine of Natural History 4(19):154-158.). 13-17, MNRJ 60821, same shell; 18, MNRJ 60823. 13, 18, entire shell, lateral view; 14, entire shell, anterior view. 15, detail of the apex; 16, detail of ventral aperture; 17, detail of dorsal aperture. Scale bars: 13, 14, 18= 5 mm; 15, 16= 0.5 mm; 17= 0.2 mm.
Figs 19-27.
Cadulus platensisHenderson, 1920Henderson, J. B. 1920. A monographof the East American scaphopod mollusks. United States National Museum Bulletin 111:1-177.. 19-22, holotype (USNM 887476); 23-26, MNRJ 27204: 23, 24, same shell; 25, 26, same shell; 27, MZSP 119362.19, 23, 25, 27, entire shell, lateral view; 20, 24, 26, entire shell, anterior view; 21, detail of dorsal aperture; 24, detail of ventral aperture. Scale bars: 19, 20,23-27= 1 mm; 21, 22= 0.4 mm.
Figs 28-35.
Cadulus tumidosusJeffreys, 1877Jeffreys, J. G. 1877. New and peculiar Mollusca of the order Solenoconchia procured during the Valorous expedition. Annals and Magazine of Natural History 4(19):154-158.: syntypes (USNM 169502): 28, 29, same shell; 30, 31, same shell; 32, 33, same shell; 34, 35, same shell. 28, 30, 32, 34, entire shell, lateral view. 29, 31, 33, 35, entire shell, anterior view. Scale bar: 2 mm (all images at same scale).
Figs 36-41.
Cadulus victori sp. nov. 36, 37, holotype (CZUFS SCA-00005); 38-41, paratype (MNRJ 34466). 36, 38, 40, entire shell, lateral view; 37, 39, entire shell, anterior view; 41, detail of dorsal aperture; the arrow indicates the anterior region of the shell. Scale bars: 36-40= 1mm; 41= 0.1 mm.
Figs 42-49.
Cadulus species. 42-44, Cadulus exiguus Watson, 1879: syntypes, NHMUK 1887.2.9.94, both glued to a cardboard. 45-48, Cadulus gibbus Jeffreys, 1883: 45, 46, syntype (USNM 172858); 47, 48, syntype (NHMUK 1885.11.5.1287); 49, Cadulus obesus Watson, 1879: syntypes (NHMUK 1887.2.9.84-87, 4 shells), all inside a gelatin capsule.
Fig. 50.
Confirmed records of the species studied at the Atlantic Ocean: Bathoxiphus ensiculus (yellow symbols), Cadulus platensis (black symbols) and Cadulus victori sp. nov. (red symbols). Stars represents the new records of the present study.
Tab. I.
Morphometric data (in millimeters, except ratios) of studied scaphopods. The horizontal bars (―) indicates unavailable data. Abbreviations: Arc: height of curvature; Dmax: distance of the maximum diameter to the ventral aperture; Hd: height of dorsal aperture; Hv: height of ventral aperture; L: length; Larc: distance of the point of maximum curvature to the dorsal aperture; Max: maximum diameter; SD: standard deviation; Wd: width of dorsal aperture; Wv: width of ventral aperture. Source of data: 1: Present study; 2: Dall (1881Dall, W. H. 1881. Reports on the results of dredging, under the supervision of Alexander Agassiz, in the Gulf of Mexico and in the Caribbean Sea (1877-78), by the United States Coast Survey Steamer ‟Blakeˮ, Lieutenant-Commander C.D. Sigsbee, U.S.N., and Commander J. R. Bartlett, U. S. N., commanding. XV. Preliminary report on the Mollusca. Bulletin of the Museum of Comparative Zoology 9(2):33-144.); 3: Henderson (1920Henderson, J. B. 1920. A monographof the East American scaphopod mollusks. United States National Museum Bulletin 111:1-177.); 4: Nicklès (1979Nicklès, M. 1979. Scaphopodes de l’Ouest-Africain (Mollusqua, Scaphopoda). Bulletin du Muséum national d'Histoire naturelle, section A, Zoologie, Biologie et Écologieanimales (4eserie) 1:41-77.).
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