OLIVIDA. 177 
OLIVULA, Conrad. Shell decussated by distinct close, longitu- 
dinal and revolving striz; spire covered by a longitudinally 
striate callous deposit, forming a raised band upon the suture of 
the body-whorl; aperture posteriorly channeled. Fossil only. 
A. staminea, Conr. (lvi, 72). 
ANOLACIA, Gray. (Cymbancilla, Fischer.) Shell oblong-ovate, 
thin; body-whorl swollen, irregularly covered with slight 
revolving striz ; spire very short, callous. Somewhat resembles 
the genus Cymbium. A. Mauritiana, Sowb. (lvi, 75). 
pipsAccus, Klein. Shell solid, polished ; columellar lip twisted, 
separated from the body-whorl by a tortuous fissure opening into 
the umbilicus above; outer lip with a slight tooth in front. A. 
glabrata, Linn. (lvi, 76). 
ANCILLINA, Bellardi, 1882. Spire produced, body-whorl rather 
short; on all the whorls is a narrow channel close to the suture ; 
columella uniplicate. A. pusilla, Fuchs. Tertiary; Northern 
Italy. 
ANCILLARINA, Bellardi, 1882. Shell narrowly elongated, sub- 
cylindrical, with short spire; anterior area defined by an oblique 
sulcus which terminates in a tooth on the outer lip. A. suturalis, 
Bon. 2sp. Tertiary; Northern Italy. 
SupramMity HARPINA. 
Head and tentacles exposed; eyes conspicuous; mantle simple, 
enclosed, without a tapering appendage in front; foot large, flat, 
not reflexed on the sides of the shell. No operculum. Shell 
large, ventricose, longitudinally ribbed ; columellar lip without 
anterior plications or grooves. Dentition (x, 16). 
Harpa, Lam. 
Harp-shell. 
Syn.—Harpalis, Link. Harparia, Raf. Lyra, Griffith. 
Distr.—9 sp. Tropical; Mauritius, Philippines, Ceylon, Poly- 
nesia, West Coast of America (absent from the tropical Atlantic 
QO.). Fossil. Eocene—. 4H. ventricosa, Lam. (lvi, 77). 
Generic characters, those of the subfamily. 
The figure (x, 16) of the dentition is copied from Troschel, 
and is from a quite young individual. The lingual ribbon is, in 
this genus, very minute compared with the size of the animal. 
Troschel was not able to detect any lateral teeth, but Macdonald, 
who only observed them towards the posterior extremity, records 
that they are very similar to those of Oliva. Other observers 
have not found a trace of lingual armature, and it is possibly 
only developed in the young animal. The animal of Harpa is 
variegated with beautiful colors. It crawls with vivacity. The 
front of the foot is crescent-shaped, and divided by deep lateral 
fissures from the posterior part. Unable to withdraw completely 
