106 



THE NAUTILUS. 



above this is auother similar girdle of tubercles, occupying the place 

 of the supra-peripheral series of knobs in C. arfjenteonitens. The 

 deep, channelled suture is bordered by a necklace of beads. The 

 base has six encircling carina^, like those of argenteonitens but more 

 distinctly beaded. The whorls of the spire show the two prominent 

 series of tubercles, and the subsutural row ; the beads of the latter 

 sometimes duplicated. Aperture round, oblique, the outer lip slightly 

 expanded; columella and parietal lips regularly arcuate, pearly. 

 Interior silvery, with the reflections of opal. Alt. 31, diam, 26 

 oblique alt. of aperture 17 mill. 



Habitat, Japan. 



This is one of the most exquisitely beautiful shells of this family. 

 It differs markedly from C. argenteomtens in having a double row 

 of prominent bosses or tubercles. The opaline hues of the nacre 

 shine faintly through the thin, duller whitish outer layer; and the 

 aperture is iridescent with the most intense red and emerald reflec- 

 tions. The specimen is from the collection of Mr. Shelley G. Crump, 

 of Pittsf )rd, N. Y., who is making a special study of Trochidce and 

 Turhinidce, and in whose honor the species is named. 



It should be noted that Trochus moniliferus Lmk. placed in 

 Calliostoina in my monograph of this family in the Manual of 

 Conchology, really belongs to the subgenus Eutrochus, but Fischer 

 has instituted a section Lischkeia for it. A very fine typical spec- 

 imen of this species is in the collection of Mr. Crump. 



NOTES AND NEWS. 



Note on Conulus sterkii Dall. — In Proc. U. S. Nat. Mus. vol. 

 xi, 1888, p. 214, Dall published the description of a n. sp. of 

 Hyalinia which he called H. sterkii. The description was copied in 

 Nautilus V, p. 10, without a name. The figures represent fairly 

 well the form, exce^it Fig. 3 which shows the spire too high. As 

 Mr. Dall justly supposed, it is a true Conulus, which genus has since 

 been confirmed as being distinct from Hyalinia by anatomic char- 

 acters (Dr. v. Iheriug and others). In 1891, I examined jaw and 

 radula of a dried specimen, softened, and could notobtain the radula in 

 its totality ; now, as there is no hope to have any fresh examples before 

 next year, I jjublish the general result. The jaw is of nearly exactly 



