504 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.xxiv. 
Shell small, yellowish white, with rather eoai'se spiral ehannels, sepa- 
rated by narrow, rounded threads crossed ])v nai'row riblets, stronjr 
on the upper whorls, on the last fainter, extending axially from the 
broad concave fasciole to about the middle of the whorl, where they 
become obsolete, substantially as figured. Outer lip not Urate within, 
and no callus on the pillar. Altitude of figured type, 9 mm. ; maximum 
diameter, 4 mm. 
ADMETE MICROSCOPICA Dall. 
Plate XXIX, fig. 4. 
('(ni/r/ldria microscupicd Uall, Rep. Blake Gastr., Bull. Mas. Comp. Zool., XVIII, 
1889, p. 131. 
Admete ? nnrroscopica Dali>, Bull. .S7, U. S. Nat. Mus., 1889, p. 106. 
Campeche Bank, off Yucatan; Florida Strait, and off Fernandina, 
Florida, in 200 to 780 fathoms, U. S. Fish Commission steamer 
AIImtro,ss and Dr. W. H. Rush. U.S.N.M., 82977. 
The plaits on the pillar are either not fully developed, or, as seems 
more probable, are almost obsolete, as are the inner lirations of the 
outer lip. For this reason it seemed more appropriately placed in 
Admete, though the general appearance is more like that of Trigo- 
nostoma in miniature. The largest specimen observed measures only 
4.3 mm. in length. 
AURINIA DUBIA Broderip. 
Plate XXIX, fig. 11. 
Voluta duhin BRonERiP, Zool. .Touni., Ill, 1828. p. SI, pi. iii, fig. 1. 
Aurinia duhia Da[.i,, Rep. Blake Gastr., Bull. Mus. Comi). Zool., XVIII, 1889, 
p. 151. 
North Carolina to the Gulf of Mexico, in 84 to 168 fathoms. 
U.S.N.M., 54544. 
Full synonym}" and details of the gross anatomy will be found in the 
Blake report. The shell is so thin and fragile that it is probably 
always destroyed before reaching the beaches when cast up by the 
sea. The color is salmon pink with squarish dark ])rown spots, very 
much as in the case of Scajjhella jiinonla. The figures of this species 
being hardly accessible to American students, it was thought desirable 
to provide one here. 
MURICIDEA PHILIPPIANA Dall. 
Plate XXIX, fig. 5. 
Muricidea j}h^lippimui Dat,l, Rep. Blake Gastr., Bull. Mus. Comp. Zool., XVIII, 
Mar., 1889, p. 213. 
Among coral at low water, at Key West, Hemphill, and off Cape 
Catoche, Yucatan, in 20 to 25 fathoms, coral sand, U. S. Fish Commis- 
sion steamer Albatross. U.S.N.M., 93337. 
