98 PROCEEDINGS OF THE NATIONAL MITSEUM vol. TO 



subequal interspaces, somewhat obscured by the spiral sculpture; on 

 the spire the spirals comprise two cords, the anterior stronger, forming 

 at the intersections two rows of beads, the anterior row prominent 

 and larger; there is also a fine simple thread at the margin of the base, 

 in front of which the suture is laid and sometimes an intercalary 

 thread at the periphery; the last whorl has three feebler cords becom- 

 ing obsolete; the base convex with two or three simple spiral threads; 

 aperture subquadrate, lip simple, the pillar very short and twisted, 

 the canal short. Height, 6; diameter, 1.8 mm. U. S. Nat. Mus. Cat. 

 No. 108344. 



Off Georgia, many specimens. 



LASKEYA (ONCHODIA) MERIDA, new species 



Shell (not quite mature) with a swollen nuclear whorl, followed by 

 a nepionic whorl with feeble, nearly vertical riblets, succeeded by 6 

 whorls with the adult sculpture; suture distinct; spiral sculpture of 

 (on the early whorls 2, on the later 3) small cords, the peripheral 

 stronger, all moderately nodulating the ribs, 2 fine simple threads at 

 the edge of the moderately convex base, which later are covered in 

 the suture; axial sculpture of (on the last whorl 17) slender slightly 

 protractively oblique ribs with subequal or wider interspaces, cut by 

 the spirals into subequal nodulations; aperture subquadrate, lip thin, 

 pillar slender, short. Height, 3.6; diameter, 1.3 mm. U. S. Nat. 

 Mus. Cat. No. 108075. 



Off Fernandina, nine specimens. 



LASKEYA (ONCHODIA) SERINA, new species 



Shell not quite adult, white, with one swollen nuclear and one 

 nepionic whorl, both somewhat worn, and seven subsequent whorls; 

 general sculpture like that of L. henthica but more delicate, the ribs 

 finer and more numerous, the suture more constricted; there is a fine 

 crenulate thread at the edge of the flattish base, against which the 

 suture is laid; the two peripheral spirals connected by the vertical 

 ribs give the effect in profile of a flattish broad band encircling the 

 whorls; aperture rounded, pillar short. Height, 4.5; diameter, 1.6 

 mm. U. S. Nat. Mus. Cat. No. 329380. 



Off Georgia, five specimens; oft' Fernandina three specimens. 



LASKEYA (ONCHODIA) DOCATA, new species 



Shell very slender, with one swollen smooth nuclear and one nepi- 

 onic whorl with feeble nearly vertical riblets, succeeded by 10 whorls 

 with adult sculpture; suture constricted, appressed; last whorl with 

 about 15 vertical ribs with subequal or wider interspaces; the early 

 whorls have 2 peripheral spiral cords and a thread at the suture, later 

 the thread becomes undulate and larger, and the last whorl has 4 

 spirals; the cords are stronger than the ribs, minutely nodose at the 



