218 BULLETIN OF THE 
and two dead, Station 307, east of George’s Bank, in 980 fathoms. One dead, 
Station 343, south of Martha’s Vineyard, in 732 fathoms. 
Recorded by the U. S. F. C. from east of George’s Bank to off Cape Hat- 
teras, N. C., in 63 to 1,594 fathoms; not living in less than 193 fathoms; and 
by Mr. Dall as far south as Grenada, in 416 fathoms, dead. 
Mr. Dall has been able to decide definitely, by the comparison of authentic 
specimens, the question suggested by Mr. Jeffreys in 1883, as to whether the 
recent and fossil forms were not identical; but I notice that, in his more 
recent report on the “ Albatross” mollusks (Proc. U. 8. Nat. Mus., XII. 
p- 352, 1889), he retains regalis as a varietal name. 
Margarita (Solariella) infundibulum Warson, var. Diomedez 
VERRILL, nov. 
Trochus (Margarita) infundibulum Watson, Journ. Linn. Soc., London, XIV. p. 707, 
1879; Chall. Voyage, Zodlogy, XV. p. 84, pl. 5, fig. 5, 1885. 
Solariella infundibulum Dall, this Bulletin, XVIII. p. 380, 1889; Bulletin U. S. Nat. 
Mus., No. 37, p. 164, 1889; Proc. U. S. Nat. Mus., XII. p. 349, pl. 9, fig. 3, 
1889 (Anatomy). 
Plate II. Figs. 10 and 11. 
One living specimen, Station 303, east of George’s Bank, in 1,242 fathoms. 
One living, Station 340, south of Martha’s Vineyard, in 1,394 fathoms. 
A rare and beautiful deep-water species first dredged by the U.S. F. C. in 
1883, ranging from east of George’s Bank to off Cape Hatteras, N. C., in 679 
to 1,782 fathoms. 
Mr. Dall extends the range as far south as Brazil, in 769 to 860 fathoms, 
dead. 
This variety differs from the typical form described by Mr. Watson chiefly 
in having two, and sometimes three, sharply tuberculated carinz on all the 
whorls except those of the nucleus, and also in having on the base four nearly 
equally spaced, finely crenulated caring, besides a fifth which defines the um- 
bilicus and is mor strongly crenulated than the others ; in some specimens it 
is sharply tuberculated. 
Professor Verrill has kindly permitted me to give the following description, 
which was prepared by him from specimens in the collection of the U.S. F.C., 
but has not as yet been published : — 
“ Sholl white, iridescent, large for the genus, with an elevated conical spire, 
consisting of about eight whorls, which are well rounded and ornamented with 
two (rarely three) tuberculated carine. Suture rather deep, sometimes 
slightly chanelled. Base convex and swollen, with a large umbilicus and 
ornamented with five (rarely six) prominent spiral lines or carine, which are 
usually separated by concave interspaces of nearly equal breadth ; when there 
are six caring the interspaces become unequal. The outermost carina coincides 
