MARINE MOLLUSCA OF THE UNITED STATES. 105 
spread out into a thin enamel upon the body of the shell, partially 
covering an umbilical indentation; greenish-white. 
Length 2.5 mill. 
New England, northwards. (Hur.) 
Genus SCAPHANDER, Montfort. 
Conch. Syst., ii. 385. 1810. 
Animal not investing the shell; eyes none; foot ample, but 
short, the side lobes small. 
1. S. puncTo-sT1aTus, Mighels and Adams. Fig. 216. 
(Bulla.) Proc. Bost. Soc. Nat. Hist., i. 49. 1841. 
8. librarius, Lovén, Ind. Moll. Scand. 1846. 
Shell white, rather solid, ovate, with crowded inequidistant 
punctate strie; spire concealed; aperture very large, labrum 
rising above the apex, very sharp and regularly arcuate; labium 
with a very thin lamina extending to the apex. 
Length 10, diam. 6 mill. 
Casco Bay, Me. (Hur.) 
Mr. A. E. Verrill has recently obtained specimens in deep water 
off St. George’s Bank, measuring over an inch in length. 
Genus PHILINE, Ascanias. 
Act. Holm. 1772. 
Animal investing the shell; eyes none; foot not produced pos- 
teriorly, the side lobes large and fleshy; shell concealed in the 
mantle. 
The animals composing this genus are blind, like most creatures 
that seek their food by burrowing. They frequent mud-flats and 
slimy banks at the entrances of rivers, which they perforate near 
the surface, and probe with their flattened heads for the small 
bivalves which constitute their prey ; these they seize and swallow 
entire, breaking their shells by means of their testaceous, muscu- 
lar gizzards. There are about twenty species; distribution uni- 
versal. 
1. P. stnvatTa, Stimpson. Fig. 217. 
Proc. Bost. Soc. Nat. Hist., iii. 838. 1850. 
Shell minute, ovate, white, pellucid, longitudinally striate ; 
spire conspicuous; aperture anteriorly dilated. 
Length 1.75, diam. 1.25 mill. 
The animal is yellowish, elongated; darkest behind, with dots 
and patches of white. 
