Airr. 18 SMALL SHELLS DREDGED BY "aLBATKOSS '' DALL 41 



Fifteen specimens and fragments off Fernandina; one fragment 

 off Georgia. 



This is of the same general type as M. acloneta, but the whorls in- 

 crease in size much more rapidly. 



MANGILIA? AREIA, new species 



Shell small, white, with a swollen nucleus of a whorl and a half and 

 nearly four subsequent whorls; suture distinct, appressed, constricted, 

 with a conspicuous line of pustules in front of it, the fasciole very nar- 

 row and obscure, the whorl in front of it with a rounded shoulder; ax- 

 ial sculpture of (on the last whorl about a dozen) straight, narrow ribs, 

 prominent at the shoulder, obsolete on the base, and with wider inter- 

 spaces; the incremental lines are inconspicuous; spiral sculpture of 

 (on the penultimate whorl 5 or 6) low threads slightly corrugating the 

 summits of the ribs; on the last whorl in the adult they extend from 

 the shoulder to the canal, where they are somewhat coarser; aperture 

 sublunate, hardly differentiated from the canal; anal sulcus very fee- 

 ble, outer lip thin, canal straight, attenuated in front, the axis imper- 

 vious. Length, 8; diameter, 3 mm. U. S. Nat.Mus. Cat. No. 107954. 



Two specimens and some fragments from off Fernandina. 



The specimen may not be entirely mature. 



MANGILIA? LORAEFORMIS. new species 



Shell short, small, polished, whitish, solid, with a large nucleus of 

 a whorl and a half and three and a half subsequent whorls; suture 

 distinct, not appressed, the fasciole inconspicuous, the whorls mod- 

 erately rounded, the aperture about half the whole length; axial 

 sculpture of more or less obscure folds, stronger on the early whorls, 

 seldom differentiated into distinct ribs, sometimes forming a rounded 

 shoulder to the whorls; beside the?e there are irregularly distributed 

 incremental lines; there is no indication of any spiral sculpture; 

 aperture narrow, the anal sulcus hardly evident, the outer lip straight, 

 thin or very slightly thickened; pillar straight, axis not pervious. 

 Length, 4.5; diameter, 2 mm. U. S. Nat. Mus. Cat. No. 108308. 



Off Fernandina, about 30 specimens. 



Except for its obsolete sculpture it bears the aspect of a Lora. 



MANGILIA? PELAGIA Dall 



Pleurotonia (Mangilia) pelagia Dall, Bull. Mus. Comp. Zool., vol. 9, p. 61 



August, 188L 

 Mangilia pelagia Dall, Bull. Mus. Comp. Zool., vol. 18, p. 117, pi. 11, fig. 9, 



June, 1889. 



One specimen off Georgia. Also at Blake station 44, in 539 fath- 

 oms, in the Gulf of Mexico, bottom temperature 39.5° F. 

 24105— 27t 4 



