NO. 1T04. A COLLECTION OF SHELLS FROM PBRU—DALL. 249 



Class SCAPHOPODA. 



Order SOLENOCONCKLA. 

 Family DENTALIID^E. 



Genus DENTALIUM Linnaeus. 



DENTALIUM .SQUATORIUM Pilsbry and Sharp. 



1897. Man. Con., vol. 17, p. 112, pi. 21, fig. 43. Off Manta, 

 Ecuador. 



DENTALIUM INNUMERABILE Pilsbry and Sharp. 



1897. Man. Con., vol. 17, p. 119, pi. 18, figs. 6-8. Magdalena 

 Bay, Lower California, and southward to Panama and 

 Guayaquil. 



DENTALIUM NUMEROSUM Dall. 



1897. Man. Con., vol. 17, p. 25, pi. 10, figs. 70-73. Todos 

 Santos Bay, Lower California, and southward to Panama 

 and the Galapagos Islands. 



DENTALIUM QUADRANGULARE Sowerby. 



1832. Proc. Zool. Soc, p. 29; Thes. Con., vol. 3, p. 103, pi. 224, 

 fig. 31, 1860. West Coast of Nicaragua and south to Jipi- 

 japa, Ecuador. 



DENTALIUM TESSARAGONUM Sowerby. 



. 1832. Proc. Zool. Soc, p. 29. — Pilsbry and Sharp, Man. Con., 

 vol. 17, p. 34, pi. 4, fig. 1, 1897. Gulf of Panama and south 

 to Jipijapa, Ecuador. 



Genus CADULUS Philippi. 



CADULUS ALBICOMATUS Dall. 



1889. Proc. U. S. Nat. Mus., vol. 12, p. 259, pi. 9, fig. 8. Gulf 

 of Panama to vicinity of Manta, Ecuador. 



CADULUS PERPUSILLUS Sowerby. 



1832. Dentaliuin 2>€rpu8illu'm Sowerby, Proc. Zool. Soc, p. 

 29.— Pilsbry and Sharp, Man. Con., vol. 17, p. 191, pi. 36, 

 figs. 23, 24, 1847. Off Lower California, N. lat. 23° 33', and 

 south to Panama and Guayaquil. 



CADULUS PLATYSTOMA Pilsbry and Sharp. 



1897. Man. Con., vol. 17, p. 180, pi. 35, figs. 17, 18. Off 

 Manta, Ecuador. 



