ACT YS. 
Puiate IV. 
Species 19. (Mus. Metcalfe, oli.) 
Arys exicgua. At. test@ minutd, elongata, angustd, 
cylindrica, nitidd, longitudinaliter 
striata ; apertura angustissimd ; columella tenut, 
subtortud ; apice angustissimo. 
Tue narrow Atys. Shell minute, elongated, narrow, 
cylindrical, polished, longitudinally very minutely 
striated ; aperture very narrow, columella thin, 
minutissime 
rather tortuous; apex very narrow. 
A. Apams. In Sowerby’s Thesaurus Bulla, Sp. 98, 
f. 129. 
Hab. Port Lincoln. 

Species 20. (Fig. a, 6, Mus. Metcalfe, olim.) 
Atys Horpacea. At. testd parva, ovali, albd, nitidd, 
spiraliter striata; ad terminos angustatd, supra 
medium ventricosd ; columella tortuosd ; aperturd 
angustd ; labio eaterno supra medium arcuata. 
BARLEY Atys. Shell small, ovate, white, smooth, 
spirally striated; narrow at the ends, ventricose 
above the middle; columella tortuous; aperture 
narrow; outer lip arched above the middle. 
A. Apams. In Sowerby’s Thesaurus, Sp. 100, f. 131. 
Hab. Port Lincoln; Australia. 
THE 
Species 21. (Fig. a, , c. Mus. Brit.) 
Arys PARALLELA, At. testd elongatd, tenut, prope ter- 
minos spiraliter striata, angustatd medio laevigata, 
inflata, ad terminum anticum subtruncata, utrinque 
subumbilicatd, alba, sew medio fulvd, seu aurantia ; 
labio interno supra apicem tortuoso; columella 
oblique arcuatd ; apertura latiusculd. 
PARALLEL Arys. Shell elongated, thin, spirally 
striated, and narrow near the ends, smooth, in- 
flated in the middle, subtruncated at the anterior 
end, subumbilicated at both ends, white, or ful- 
yous, or orange in the middle; inner lip tortuous 
above the apex; columella obliquely arched; 
aperture rather wide. 
GouLp. 
Hab. 
THE 
United States. 
April, 

Species 22. (Fig. a, b, Mus. Cuming, in Mus. Brit.) 
Arys ALicuLa. At. testd elongato-ovatd, albd supra et 
infra spiraliter dense striata ; apice truncato, umbi- 
licato, labio interno supra apicem tortuoso ; colu- 
melld arcuatd, crassd complanata ; labio externo 
supra medium sinuatim producto. 
THe WHEATEN Atys. Shell elongate-oval, white, above 
and beneath spirally closely striated; apex trun- 
cated, umbilicated, inner lip above the apex tor- 
columella arched, thick flattened; outer 
lip sinuously produced above the middle. 
tuous ; 
EHRENBERG, 
Hab. Red Sea, near Suez. 
In some degree resembling a miniature Atys elongata. 

Species 23. (Copied.) 
Atys Nonscripta. At, testd ovato-cylindraced, albd, sub- 
pellucida, longitudinaliter striata, postice subtrun- 
catd, antice productd ; labio interno subrecto ; labio 
externo antice truncato, in plicd dentiformi desinente. 
THE UNDESCRIBED ATYS. 
subpellucid ; longitudinally striated, posteriorly 
Shell ovate-cylindrical, white, 
subtruncated, anteriorly produced ; inner lip rather 
straight; outer lip anteriorly truncated, ending in 
a dentiform fold. 
In Sowerby’s Thesaurus Bulla, Sp. 94, f. 25. 
Or 
A. ADAMS. 
Hab. 


(Mus. Cuming, in Mus. Brit.) 
Atys NITIDA. At. 
opacd, levigata, superne angustatd, inferné dilatata, 
Species 24. 
testa minutd, alba, subpyriforma, 
utrinque subumbiticatd, supra et infra spiraliter 
striata, columella  subtortuosé, 
superné elevatd, acuminata, inferne expansd. 
Tue smootH Atys. Shell minute, white, subpyriform, 
opaque, smooth, narrowed above, dilated below, sub- 
umbilicated at each end, above and beneath spirally 
striated, columella subtortuous, arched; aperture 
elevated, acuminated above; expanded beneath, 
arcuatd, aperturd 
A. Apaws. In Sowerby’s Thesaurus Bulla, Sp. 99,f. 127. 
Hab. Borneo, 
This shell tends in form towards Atys pyriformis, but 
is not nearly so much expanded at the lower part. 
1869. 
