ART. 18 SMALL SHELLS DREDGED BY ^ ' ALBATROSS " DALL 103 



rounded subsequent whorls with adult sculpture; suture deep, with a 

 punctate appearance, due to the projecting ends of the ribs which are 

 not continuous up the spire; axial sculpture of (on the last whorl 15) 

 strong rounded ribs mostly with somewhat wider interspaces, crossing 

 from suture to suture, but on the base only flexuous incremental lines; 

 spiral sculpture of 2, or on the last whorl 3, fine rather feeble threads, 

 widely separated, and fine almost microscopic striae with a single plain 

 thread at the margin of the base, sometimes visible at the suture; ap- 

 erture obovate; outer lip thin, not reflected, pillar straight, short, atten- 

 uated in front, canal very short, wide, not recurved. Height, 6.5; 

 diameter, 2 mm. U. S. Nat. Mus. Cat. No. 108337. 



Off Georgia, numerous specimens, mostly worn. Off Fernandina, 

 one young shell. 



The typical species is flat-sided and has three spiral rows of sub- 

 equal beads. 



Genus CERITHIELLA Verrill 



Lovenella G. O. Sars, Moll. Reg. Arct. Norv., p. 187, 1878; type Cerithium 



rnelula Loven. — Verrill, Amer. Journ. Sci., vol. 20, p. 396, Nov. 1880; 



Proc. U. S. Nat. Mus., vol. 3 p. 375, 1880. Not of Hiiicks, 1869. 

 Cerithiella Verrill, Trans. Conn. Acad. Sci., vol. 5, p. 522, June, 1882; vol, 



6. p. 270, 1884. 

 Newtonia Cossmann, Annuaire Geol., vol. 8, p. 721, 1891; not Neivtonia 



Schlegel, 1866; Aves. 

 Newioniella Cossmann, Ann. Soc. R03'. Malac. de Belgique, vol. 28, p. 18, 



1893; not Newioniella Cossmann, Ann. Soc. Roj'. de Belgique for 1896, 



p. 29, 1899; type Cerithium claims Lamarck. 

 Cerithiella Iredale, Proc. Malac. Soc. London, vol. 9, p. 260, 1911. 



The nucleus of the typical species is like that of Laskeya, the apical 

 whorl is a little inflated, and the arcuate ribbing of the second or 

 nepionic whorl is stronger. 



Cerithiella and Nevjtoniella were based on the original type of Lov- 

 enella, hence the action of Cossmann in substituting a new type in 

 1899, can not be accepted. 



Beside the original C. metula wo know C. whiteavesi Verrill, and the 

 following species. 



CERITHIELLA PRODUCTA, new species 



Shell slender, acute conic, translucent glossy white, with a some- 

 what defective but swollen nucleus, and ten subsequent, posteriorly 

 sloping anteriorly rounded whorls; suture distinct, appressed, con- 

 stricted ; periphery of the whorls quite anterior ; axial sculpture of (on the 

 last whorl about 25) protractively oblique feeble ribs with narrower 

 interspaces, more distinct on the early whorls and almost obsolete on 

 the last whorl; incremental lines hardly noticeable except on the base; 

 spiral sculpture of a fine line at the suture, a small thread a little in 

 advance of the suture, 2 more prominent threads near the periphery, 



