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A. E. Verrill— Catalogue of Marine Mollusca. 529 
end; columellaa little curved. Umbilicus a narrow chink. Nucleus 
small, regular, a little excentric, not prominent and not turned up. 
Length, 3°8""; breadth, 1™™. 
Off Martha’s Vineyard, station 873, 100 fathoms. 
Solarium boreale Verrill and Smith.* 
Solarium boreale Verrill and Smith, in Verrill, Proc. U.S. Nat. Mus., iii, p. 376, 1880. 
PuatE LVII, FIGURES 29, 30. 
The largest example has four whorls; the last has a rounded 
peripheral carina, above which there are about ten low, rounded, un- 
equal cinguli, separated by concave grooves; on the base there are 
about as many similar but closer cinguli, Breadth, 12™™; height, 
7™™; breadth of aperture, 5"". Two living young anette from 
station 871, in 115 fathoms, 1880; a much larger living specimen, 
from 1038, in 146 fathoms, 1881 =o S. Fish Gonimisser: 
Omalaxis ? lirata Verrill, sp. nov. 
Shell small, depressed, with a low spire, but showing all the whorls 
in a side view. Whorls about four and a half, very convex; suture 
impressed ; upper whorls smooth; apical whorl small, regular; last 
whorl mostly covered with strong, elevated, spiral cinguli, separated 
by wider concave grooves; around the umbilical region there is a 
broad, smooth band, with lines of growth only; in the umbilicus are 
two or three spiral lines. Aperture small, nearly circular, oblique, 
the inner lip strongly receding or excavated opposite the umbilicus, 
which is large and circular. Height, 1™™; diameter, 2™™, 
Off Newport, R. I., station 770, 84 fathoms, 1880. 
HETEROPODA. 
Atalanta Peronii Lesueur. 
Atalanta Peronii D’Orbigny, Voy. Amér. Mérid., Moll., p.171, pl. 12, figs. 1-15; Hist, 
VIsle de Cuba, Moll., i, p. 102, 1853. 
Verrill, Proc. U.S. Nat. Mus., iii, p. 391, 1880. 
Several living examples, probably belonging to this species, were 
taken at the surface, near George’s Bank, latitude 41° 25’ north, lon- 
gitude 65° 5’ to 65° 30’ west, by Messrs. 8. I. Smith and O. Harger, 
in 1872, on the “ Bache.” With these were one, or perhaps two, other 
species of the genus, not yet determined satisfactorily. 
Fragments of a Carinaria, perhaps C. Atlantica, were dredged 
off Martha’s Vineyard, station 865, in 1880. 

* Those malacologists who follow H. and A. Adams, in adopting the undefined gen- 
eric names of Bolton (1798), will use for this shell the name, Architectonica borealis. 
