7 



Bulletin 38 



37 



(Graptacme) eboreum Courad, Proc. Acad. N. S. Phila., 3, p. 

 27, 1846: Pilsbry and Sharp, Tryon's Man. Conch., 17, p. 

 89, pi. 16, f. 47-49, 55, 56, 1897; Henderson, Bull, iii, U. 



5. N. M.. p. 66, pi. 10, f. 3-5, 8, 9, pi. II, f. 6, 1920. 



leptum Bnsh, Trans. Conn. Acad. Arts and Sci., ser. i, 



6, p. 470, pi. 45, f. 18, i%a, 1885; Dall, Bull. 37, U. S. 

 N. M., p. 76, 1889. 



matara Dall, Bull. M. C. Z., 18, p. 420, 1889; Bull. 37, 

 U. S. N. M., p. 76, 1889. 



Distribution.^ — ■ Hatteras to Barbados . Gulf coast: Sarasota 

 Pass (type locality), Charlotte Harbor, Kla. and between 

 Mississippi delta and Cedar Keys. Beach to 1 1 1 fms. 



Note. — Mr. Henderson unites viatara and leptum with 

 eboreion, noting that matara is the perfectly smooth adult 

 form of the species. 



(Graptacme) semSstrcolatum Guilding, Trans. Linn. Soc. Lon- 

 don, 17, pt. I, p. 34, pi. 3, f. 1-5, 1834; Chenu, Conch. 111., 

 p. 7, pi. 4, f, 14, 15,, 1843; Henderson, Bull, iii, U. S. N. 

 M., p. 69, pi. II, f. 1-5, 8, 9, 1920. 



Distribution. — An abundant littoral species. Florida to 

 Barbados. Gulf coast; West Florida in shallow water, 

 7-12 fms. 



(Graptacme) sericatum Dall, Bull. M. C. Z., 9, p. 37, 1881; 18, 

 p. 423, pi. 26, f. I, 1889; Bull. 37, U. S. N. M., p. 76, pi. 

 26, f. I, 1889. Henderson, Bull, iii, U. S. N. M., p. 71, 

 pi, 12, f. I, 6, 1920. 



Distribution. — Type only found. Dredged by the Blake, 640 

 fms., Yucatan Banks. 



(Laevidentalium) callipeplum Dall, Bull. M. C. Z., 18. p. p. 419, 

 pi. 27, f. 12 b, 1889; Bull. 37, U. S. N. M., p. 76, pi. 27 

 f. 12 ^, 1889; Trans. Wagner Inst. Sci., 3, p. 442, 1892; 

 Pilsbry and Sharp, Tryon's Man. Conch., 17, p. 100, pi. 19, 



