LIMACIDA. 25 
umbilicus being much wider, showing the front side of the upper whorls, 
which appear rather transverse. (Gray.) 
Genus, NANINA—Gray. 
Mantle with the front edge produced and divided into two move- 
able lobes, which partly cover the shell. Foot truncate, and glandular 
at the end; sole as wide as the foot. Shell perforate, depressed, thin, 
polished, granular or corrugately striated above, smooth and polished 
beneath ; aperture lunate ; peristome the thickness of the shell, straight, 
the columellar margin short, reflexed, often covering the umbilicus. 
S. Asia and Polynesia. 
N. marie, Gray; Dieff., N.Z, i1., 262; H. Marie Reeve, Conch, 
Ic, f. 804; Smith, Erebus and Terror, Moll., pl. 1, f. 2; H. umbraculum, 
Pfr., P.Z.S., 1851. Shell imperforate, nearly lenticular, rather thin, 
slightly striate, shining, greenish horn colored, indistinctly marked with 
narrow, oblique, brownish stripes; spire conoidal, with the outlines 
convex, and the apex acuminate ; suture bordered; whorls 5%, rather 
flat, acutely carinate, the last one not descending, rather convex beneath, 
and obsoletely spotted with brown; aperture oblique, depressed, nearly 
triangular; peristome simple, sharp, straight, with the basal margin very 
slightly arcuate, and shortly reflexed at the columella. 
Height, ‘15; greatest breadth, 3; least breadth, 27. (Pfr) 
Auckland (Major Greenwood.) 
FAMILY—LIMACID:. 
Rachis teeth tricuspid,-the laterals simple, aculeate, Animal elon- 
gated, body united to the foot. Head retractile; eye-peduncles moderate ; 
tentacles short, club-shaped. Mantle small, shield-like, joined to the 
back ; pulmonary opening on the right side, at the lower part of the 
mantle. Excretory and reproductive apertures on the right side. Foot 
simple posteriorly. 
Genus, LIMAX—Linneus. 
Body elongated, tapering behind, hinder part only keeled. Back 
with elongate rugosities, separated by anastomosing grooves. Mantle 
anterior, enclosing internally an oblong shell, front edge free, produced. 
Pulmonary cavity under the mantle. Genital opening just behind the 
base of the right tentacle. 
World wide. 
L.molestus, Hutton; Trans. N.Z. Inst.,x1.,p.331- Mantleshort, and 
flatly rounded behind; smooth and sub-concentrically wrinkled. Pul- 
monary opening in the posterior third of the mantle. Colour variable ; 
greyish or reddish-brown, variously marbled with dusky; sometimes 
quite black. Tentacles of the same colour as the back. Foot yellowish- 
white. Radula with 33 rows of rachis teeth, and about 20 on each side 
of lateral teeth. Transverse rows straight. 
Dunedin. Wellington. 
