A Yes: 
PLATE V. 
Species 25. (Mus. Metcalfe, o/im.) 
Arys paRvuLA. At, test parva, ovali, alba, nitidd, spt- 
raliter minutissimeé striata, supra medium ven- 
tricosd ; apertura antice dilatatd, columella sub- 
tortuosd. 
Tur smatt Artys. Shell small, oval, white, smooth, 
spirally very minutely striated, ventricose above 
the middle, aperture widened in front; columella 
slightly tortuous. 
A. Apams. In Sowerby’s Thesaurus Bulla, Sp. 99, 
f. 130. 
Hab. Port Lincoln. 

This very minute species is one of the few which 
have their greatest bulk above the middle. 
Species 26. (Fig. a, 6, Mus. Brit.) 
Atys Gumpinu. At. testd ovatd, tenui, sordidé alba 
grisescento, postice attenuata, prope terminos spiraliter 
striata, longitudinaliter subrugatd, infra medium 
ventricosd, utrinque subumbilicata ; labio externo 
superné elevato ; subacuminato, inflexo ; columella 
tenut, rectiusculd. 
Guitpin’s Atys. Shell ovate, thin, dull greyish white, 
attenuated posteriorly, spirally striated near the 
ends, slightly longitudinally wrinkled, ventricose 
below the centre, slightly umbilicated at each end; 
outer lip elevated above ; subacuminated, inflected ; 
columella thin, rather straight. 
SowErey. 
Hab. St. Vincent’s. 
This species is one of the very few in the genus Atys 
which presents the character of possessing longitudinal 
wrinkles or strie. 

Species 27. (Fig. a, b, Mus. Brit.) 
Arys semistriaATa. At. test@ tenui, pellucida, albida, 

subceeruled ; spiraliter striis filiformibus albis cinctd, 
April, 
apice angustato, subumbilicato, medio inflato ; colu- 
mella brevi, rectiusculd, infra truncata. 
THE semistriateD Atys. Shell thin, pellucid, whitish, 
with a slight blue tint; spirally girt with filiform 
strie; apex narrow, subumbilicated, middle in- 
flated; columella short, rather straight, truncated 
below. 
GOULD. 
Hab. North America. 

Species 28. (Fig. a, 6, Mus. Brit.) 
Atys DEBILIS. At, testd pared, elongatd, alba, superne 
angustatd, inferné latiusculd ; ad terminos spiraliter 
striata, apice attenuato, umbilicato ; labio externo 
supra apicem perelevato, bilobato ; columella crassa, 
tortuost. 
WEAK ATYS. 
rowed above, wider beneath, spirally striated at 
THE Shell small, elongated, white, nar- 
the ends; apex attenuated, umbilicated ; outer lip 
much elevated above the apex, bilobed; columella 
thick, tortuous. 
Pease. 
Hab. Pacific Ocean. 
Species 29. (Fig. a, b, Mus. Brit.) 
Arys atrenuata. At. testd minutd, angustatd, alba, 
tenui, utrinque tenwiter spiraliter striata ; aper- 
turd angustatd ; labio eaxterno subtruncato ; colu- 
mella obliqua, subtortuosd. 
THe arrenvatep Atys. Shell minute, narrow, white, 
thin; finely spirally striated at both ends; aper- 
ture narrow; outer lip subtruncated, columella 
oblique, subtortuous. 
Sowersy. 
Hab. 

@) 
This pretty little shell is in the British Museum 
without name or locality. 
1869. 
