DALLI REVIEW OF AMERICAN VOLUTIDZ. 369 
been more fortunate, and, in 1903, he described it under the name of 
Voluta Dohrni, and gave a passable figure. Recently some collec- 
tions made in 1902 by the U. S. Fish Commission steamer Fish 
Hawk were turned over to the National Museum, and among the 
specimens were some twenty examples of V. Dohrni; unfortunately, 
all occupied by hermit crabs and more or less dilapidated or defec- 
tive. Of the distinctness of the species there is no doubt whatever, 
and it adds another to the remarkable group of American volutes 
typified by Voluta Junonia Hwass. 
AURINIA ROBUSTA Dall 
Aurinia robusta Dat, Bull. Mus. Comp. Zool., xviit, p. 153, pl. xxxv, 
fig. 2, 1889; Trans. Wagner Inst., 111, p. 81, pl. 7, fig. 5, 1890. 
Habitat.—Straits of Florida and Gulf of Mexico, on a muddy 
bottom; temperature 46.1° Fahr., in 119, 242 and 280 fathoms. 
Also off Cozumel Island in 231 fathoms, sand, temperature 50.8° 
Fahr. 
U.S. Nat. Mus., 54,526, 83,870 and 103,478. 
A remarkable species which differs from all the others in having 
a chalky, easily eroded outer shell-layer, and a long, sinuous canal ; 
the interior of the aperture being porcellanous white. It still retains 
the brown blotches which are the characteristic of this whole group, 
but they are rather feeble and inconspicuous. 
AURINIA GOULDIANA Dall 
Voluta gouldiana Dat, Conch. Exch., 0, p. Io, July, 1887; Bull. Mus. 
Comp. Zool., xvi, p. 154, pl. xxix, fig. 3, 1889; Trans. Wagner 
Inst., 111, p. 81, pl. 7, fig. 2, 1890. 
Habitat.—From Cape Fear, North Carolina, south and west to 
Key West, Florida, in depths from 159 to 509 fathoms, on a sandy 
bottom ; temperatures from 45.2° to 48.3° Fahr. 
U. S. Nat. Mus., 83,827, 83,828, 83,863, 83,871-75. 
This is a small species in which the brown color is either wanting, 
present in broad spiral stripes, or suffused over the whole surface. 
A fragment in which the stripes are broken up into squarish spots, 
at first supposed to be of this species, is now tentatively referred to 
Maculopeplum dohrni. 
A full description of the shell and gross anatomy is given in the 
Bulletin of the Museum of Comparative Zoology, above cited. There 
are normally four .plaits on the pillar in the young shell but these 
fade away until the adult shows two only and these very feeble. The 
