176 Transactions,— Zoology. 
Hab. Near Christchurch (R. Brown). 
ENDODONTA MARINA, N. 8. 
Shell conoidal, sub-perforated, striated; colour pale yellowish horn, 
sometimes faintly banded with chestnut, and tessellated with the same 
colour on the keel. Spire conoidal, rather obtuse; whorls 53, slowly 
increasing, rather flattened, the last acutely keeled, delicately but rather 
irregularly striated; suture margined; umbilicus covered; aperture vertical, 
sub-rhomboidal; peristome thin; columella with a large acute plait ; 
parietal plaits two, one on the penultimate whorl near the outer side, the 
other on the right lip above the keel. Greatest diameter ‘18, least :11, 
height ‘1 inch. 
Hab. Auckland (T. F. Cheeseman). 
ENDODONTA NERISSA, n. S. 
Shell conoidal, sub-perforated, striated; colour pale yellowish horny 
with indistinct bands of chestnut and spots of the same colour on the keel. 
Spire flatly conoidal, obtuse; whorls 54, slowly increasing, rather flattened, 
the last acutely keeled, delicately and rather distantly striated; suture 
margined; umbilicus covered; aperture sub-vertical, sub-rhomboidal; 
peristome thin; columella with a large acute plait; parietal plaits six, two 
on the penultimate whorl, of which the outer is the larger, one on the right 
lip above the keel, and three blunt plaits on the basal lip. Greatest 
diameter ‘11, least :1, height *07 inch. 
Hab. Auckland (T. F. Cheeseman). 
PmmrxewATHUS CELIA, n.s. H. fatua, Hutton, Trans. N.Z. Inst., xiv., 
p. 158 (not of Pfeiffer). 
Shell small, depressed, smooth, shining, umbilicated ; colour. horny 
with reddish-brown bands. Spire conoidal, depressed ; whorls 54, slowly 
increasing, the last obtusely carinated, faintly striated ; the base delicately 
spirally striatulated ; suture impressed ; umbilicus narrow, but always well 
marked; aperture oblique, sub-rhomboidal; peristome thin, the columel- 
lar margin slightly reflected. Greatest diameter ‘15, least ‘12, height 
*1 inch. 
Animal with the mantle rather anterior, included ; tail acute, without 
any mucous gland ; peduncles long, slightly clavate, approximated at their 
bases. Colour greyish-brown, the anterior portion of the head darker ; 
sometimes a dark transverse band under the shell. 
Hab. Dunedin (F. W. H.). 
This species differs from H. fatua in size and colour as well as in being 
thinner, less conical, and more finely striated. From H. glabriuscula it 
differs in having the whorls angled; and from P. conella in the umbilicus 
being much broader, and the spire more depressed. 
