118 MOLLUSCA. 
Figure 137, side of the shell, with the animal; 137 a, front view of 
the shell. 
Puysa stnuata (Gould). 
Testa parva, ovata, cornea, arcuatim striata: spira acuta ; anfractibus 
quinque rotundatis postice sub-angulatis ; sutura profunda: apertura 
obovata, angusta, antice sub-effusa, postice emarginata ; labro antror- 
sum arcuato ; columella incrassata, sub-perforata, reflexa. 
Physa sinuata, Gouin; Proceed. Boston Soc. Nat. Hist., i. 214. 
June 1847. Expedition Shells, 43. 
SHELL small, rather solid, ovate, pointed at tip, reddish horn-colour, 
marked with arched strie of growth. Whorls five, well rounded, and 
separated by a profound suture ; aperture about two-thirds the length of 
the shell, narrow-ovate, acute posteriorly, and somewhat effuse at base. 
The lip arches forwards, when viewed in profile, leaving a very dis- 
tinct sinus as it joins the preceding whorl. Columella broad and 
thickened, somewhat reflected, so as to give a faint appearance of an 
umbilicus; there is a thick deposit of callus on the inner lip. Colu- 
mellar fold rather strongly marked. 
Length half an inch; diameter one-fourth of an inch. 
Inhabits the Feejee Islands. Drayton. 
A well-marked species, especially remarkable for its thickened 
inner lip, and for the advancing outer lip, and consequent posterior 
sinus, and for the arched strie of growth, which I have seen in no 
other species except P. gibbosa. 
Figures 139, 139 a, 139d, three views of the shell. 
Puysa RETICULATA (Gould ). 
Testa tenuts, elongata, ovato-conica, fulva, striis subtilissimis decussata: 
spira anfractibus quatuor ad quinque ventricosis ; sutura profundis- 
