DALL: MOLLUSCA AND BRACHIOPODA. 349 
ATLANTIC OCEAN. 
Turcicula imperialis Dall. 
Turcicula miranda Dautzenberg and Fischer. 
EASTERN PAciIFIc. 
T. macdonaldi Dall. 
T. bairdii Dall. 
WESTERN PACIFIC, ETC. 
T. crumpii Pilsbry. 
T. aeola Watson. 
T. argenteonitens Lischke. 
OLIGOCENE OF WASHINGTON. 
T. washingtoniana Dall. 
EOcENE OF OREGON. 
T. columbiana Dall. 
Turcicula macdonaldi Datt. 
Plate 19, fears Uc 
Turcicula macdonaldi Dall, Proc. U.S. Nat. Mus., 1889, 12, p. 348, pl. 7, fig. 7. 
U. S. S. “ Albatross,” station 2792, off Manta, Ecuador, in 401 fathoms, 
mud, bottom temperature 43° F; also at station 3356, Gulf of Panama, in 546 
fathoms, mud, bottom temperature 40°.1 F. U.S. N. Mus. 122,958. 
This is the largest and finest recent species yet described. 
The species of Turcicula are found at considerable depths in the tropics and 
warm temperate zone, but in the cold waters of Bering Sea, Turcicula bairdii 
has recently been dredged by the ‘‘ Albatross” in 25 fathoms, but always in the 
offshore fauna. No species has yet been described from any part of the shore 
fauna properly so called, and even the Miocene fauna of Oregon, where it might 
reasonably have been expected to occur, is without it, the assembly in that hori- 
zon being a shallow water coast fauna. 
While the type of sculpture characteristic of Turcicula is also found in many 
other deep water Trochids, the species can easily be discriminated from the Solar- 
iellas which are its next allies by its imperforate base with no umbilical depression. 
SOLARIELLA Ssartres Woop. 
Solariella nuda Datt. 
Plate 3, figures 5, 7. 
Solariella nuda Dall, Proc. U. S. Nat. Mus., 1896, 18, p. 9. 
Shell turbinate, recalling Margarites, smooth, polished, except for obscure 
spiral markings which do not interrupt the surface, of about four whorls; color 
