28 THE NAUTILUS. 



straighter axial ribs, and may prove on further study to be 

 specifically distinct. (U. S. Nat. Mus. Cat. No. 210004). 



Columbdla fusiform/is Hinds, 1844, is not the species so named 

 by Anton, 1839, or Orbigny, 1844. It is a Strombina and may 

 take the name of fusinoidea. It is a Panama species. 



Columbella subulata Sowerby, 1847, is not C. subulata Duclos, 

 1840. It is a Strombina and may be hereafter called S. colpoica. 

 It ranges from the Gulf of California to Panama. 



Strombina lilacina Dall, is a short stumpy white species with 

 an acute spire, the latter with a lilac flush in perfect specimens; 

 the axial riblets are inconspicuous, but the spiral sculpture is 

 of regular strong channeled grooves with wider flat interspaces, 

 about nine on the last whorl; the distal end of the pillar pro- 

 jects beyond the outer lip, with a very deep recurved short 

 siphonal sulcus; there is no dorsal hump, and the shell is about 

 an inch long. (U. S. Nat. Mus. Cat. No. 219764). It has 

 been received from the Gulf of California and Manzanillo. 



Another species which seems to be undescribed, I propose to 

 call Strombina paceana, as a tribute to the author of the excel- 

 lent bibliography of the Columbellida in the fifth volume of the 

 Proceedings of the Malacological Society, London. It is 37 mm. 

 long, of which the spire takes 20, and the maximum diameter 

 is 10.5 mm. There are more than ten whorls (nucleus lost); 

 the spire is acute, with a narrow turriculation at the suture: the 

 upper whorls are flattish and smooth, the last whorl and a half 

 coronated in front of the suture by about nine small pustules. 

 The shell is mostly dark brown with a silky periostracum. 

 The aperture is narrow and edentulous, 15 mm. long. It has 

 been obtained from Scammon Lagoon, L. Cal., and the Gulf of 

 California. (U. S. Nat. Mus. Cat. No. 130616). 



The word Strombina was used by Bronn in 1849 in a large 

 sense to include Aporrhaidee, Strombidse, &c. According to the 

 best usage this does not affect its use as a generic name. I 

 have therefore not adopted the clumsy Strombocolumbus proposed 

 by Cossmann in 1901 to replace Strombina. This author was 

 probably misled by the brief entry in Scudder's nomenclator 

 given to Bronn' s Strombina. It may be added that the type of 

 Alia is C. unifasciata Sowerby, selected by Chenu in 1859, not 



