130 PROCEEDINGS OP THE NATIONAL MUSEUM vol. TO 



Abundant off Fernandina, fewer off Georgia. The aperture is sim- 

 ple and rounded, the lips thin and sharp, with a thin wash of enamel 

 uniting them over the body. 



SOLARIELLA TUBULATA new species 



Shell small, white, conic, with a glass}^ nucleus of about one whorl, 

 and four subsequent tabulate normal whorls; suture distinct, not 

 channeled; the first whorl smooth, the second and third with two 

 prominent spiral threads, one on each side of the periphery, and three 

 on the last whorl, with a fine thread sometimes between them, with 

 several on the moderately convex base; axial sculpture of well-marked 

 oblique incremental lines and on the periphery between the major 

 spirals, connecting threads with wider interspaces nodulating the inter- 

 sections with the threads; aperture oblique, rounded except as modi- 

 fied by the sculpture, the lips thin, the pillar lip straight, with a small 

 perforate umbilicus behind it. Height, 3.5; major diameter, 3 mm. 

 U. S. Nat. Mus. Cat. No. 108109. 



One specimen (the type) and a fragment off Fernandina, and six off 

 Georgia, mostly defective. 



SOLARIELLA TIARA Watson 



Trochus {Zizyphinus) tiara Watson, Linn. Soc. .Journ., vol. 14, p. 696, 1879; 



Challenger Gastropods, p. 60, pi. 6, fig. 4, 1885. 

 Calliostoma tiara Dall, Bull. Mus. Comp. Zool., vol. 9, p. 45, 1881. 



One specimen, rather dilapidated, from off Fernandina, may prob- 

 ably belong to this species. St. Thomas and Bermuda, Challenger 

 expedition. 



New section MICEOPILISCUS Dall 



Shell like Solariella but with a brown nucleus of several whorls and 

 depressed turbinate form. 



Type. — Solariella constricta Dall. 



The normal nucleus of Solariella is small, white, with usually a sub- 

 globular glassy protoconch more or less immersed in the spire. 



SOLARIELLA (MICROPILISCLSj CONSTRICTA, new species 



Shell minute, greasy white, with a brown (horny?) nucleus of two 

 whorls and depressed turbinate form and three subsequent well-rounded 

 whorls; suture distinct, deeply constricted; spiral sculpture of fine 

 almost microscopic striae over the whole surface; axial sculpture of 

 very oblique fine incremental lines; base rounded, more strongly stri- 

 ated, with a very minute perforate umbilicus, aperture rounded, the 

 lips thin, united over the body by a deposit of enamel. Height, 3.5; 

 major diameter, 3.1 mm. U. S. Nat. Mus. Cat. No. 108414. 

 . ^- Seven specimens off Georgia. 



