AKT. 18 SMALL SHELLS DEEDGED BY '' ALBATROSS ' ' BALL 17 



DENTALIUM TUBULATUM Henderson 



Dentalium tuhulatam Henderson, Bull. U. S. Nat. Mus. Ill, p. 5!"), pi. S, 

 fig. 5, 1920. 



Off Fernandina. Also off Bahia Honda, Cuba, in 220 fathoms, 

 temperature 62° F., U. S. S. Blalce. 



Section BATHOXIPHUS Pilsbry and Sharp 



DENTALIUM ENSICULUS Jeffreys 



Dentalium ensiculus Jefereys Ann. Mag. Nat. Hist., ser. 4, vol. 19, p. 



154, 1877; Proc. Zool. Soc, 1882, p. 660, pi. 49, fig. 4.— Henderson, Bull. 



U. S. Nat. Mus. Ill, p. 81, pi. 14, figs. 1, 4, 5, 7, 9, 1920. 

 Dentalium sigsbeanum Dall, Bull. Mus. Comp. Zool., vol. 9, p. 38, 1881. 



Off Fernandina. Georges Bank to St. Bart's and the Yucatan Strait, 

 United States Fish Commission and the U. S. S. Blalce. Eastern 

 Atlantic, Jeffreys. Found in 193 to 1,859 fathoms; temperature 37° 

 to 51.6° F. 



Section COMPRESSIDENS Pilsbry and Sharp 



DENTALIUM PRESSUM Pilsbry and Sharp 



Dentalium compressum Watson, Journ. Linn. Soc. London, vol. 14, p. 516, 

 1879 (not of Orbigny, 1850); Challenger Scaphopoda, p. 9, pi. 1, fig. 

 9, 1885. 



Dentalium (Compressidens) pressum Pilsbry and Sharp, in Tryon, Man. 

 Conch., vol. 17, p. 124, pi. 7, fig. 11; pi. 22, figs. 50-52, 1897.— Hen- 

 derson, Bull. U. S. Nat. Mus, HI, p. 83, pi. 14, figs. 3, 6, 8, 1920. 



Off Fernandina. Florida Keys, Gulf of Mexico and Cape San 

 Antonio; off Culebra Island, Challenger expedition. In 100 to 339 

 fathoms, temperature 43.4° to 51.6° F. 



DENTALIUM OPHIODON Dall 



Dentalium ophiodon Dall, Bull. Mus. Comp. Zool., vol. 9, p. 38, 1881; vol. 

 18, p. 427, pi. 26, fig. 9, 1839.— Henderson, Bull. U. S. Nat. Mus. Ill, 

 p. 84, pi. 14, fig. 2, 1920. 



Off Fernandina. Florida Keys to Barbados, in 70 to 287 fathoms. 



Genus SIPHONODENTALIUM Sars 



Section ENTALINA Monterosato 



SIPHONODENTALIUM PLATAMODES Watson 



Siphodentalium platamodes Watson, Journ. Linn. Soc. London, vol. 14, 

 p. 519, 1879; Challenger Scaphopoda, p. 13, pi. 2, fig. 4, 1885. 



Entalina platamodes Henderson, Bull. U. S. Nat. Mus. Ill, p. 87, pi. 15, 

 figs. 1, 4, 5, 7, 1920. 



Off Fernandina. Rebecca shoals in 430 fathoms, Rush. 



