FiNLAY.— Family Liotiidae in New Zealand Tertiary. 521 
the most prolific оса found were Castlecliff, and especially Pekeuri, 
where four species occ 
Brookula fossilis n. sp. (Plate 53, figs. 4a, 4b, 4c.) 
Description de eet Np very small, turbinate, perforate, trans- 
lucent, aia, horls 3}, convex, periphery regularly ro rounded, ornamented 
numbering 25 on body-whorl; they remain of same width over the whole 
whorl, but about half-way across rounded base begin to taper and gradually 
thin out into umbilicus, which they enter ith uniform curve. Interstices 
only slightly wider than ribs, and show faint traces of spiral striation. 
Spire very slightly higher than aperture, outlines faintly convex, angle 
| m 
deep, about one-third width of aperture, only slightly eneroached on by 
Ila. 
Height, 1 mm. ; diameter, 1 m 
Holot and five paratypes, са Castlecliff, in author's collection. 
Examples seen are very constant, but axials vary from 22 to 25, generally 
about 24, and interstices are sometimes wider than on holotype, ege oie i 
reaching 23 times width of ribs. As far as can be seen from figure, t 
shell found in a dredging from 15’ 8. of Big King Island, in 98 fathoms, ssid 
listed by Miss Mestayer (1916) as “ Brookula sp.," is very close to, if not 
identical with, this species. This is not surprising, as so many of the Castle- 
cliff shells also occur Recent. More and better specimens of the Recent 
shell may turn up some day and allow of actual comparison ; S then it 
seems better to regard this species as also of Recent occurren 
The only Castlecliff form with which this shell can = und | is a shell 
described later in this paper as Brookula funiculata n At first sight they 
are much alike, but careful scrutiny shows that B. fossilis has a higher spire 
with lower and more numerous ribs, which are not so evanescent on apical 
ees , which in turn are not so discoidal and have а more globose protoconch. 
int circumumbilical keel and sudden change in ribs at this point, 
науи of B. funiculata, is wanting іп В. fossilis 
B. fossilis is readily ee from the new species of Brookula 
its more inconspicuous sculpture, axials being much fainter and flatter, 
prominent only above periphery, after which they suddenly diminish and 
are so little prominent on base that it seems at first quite smooth ; interstices 
vary from about half to a little more than width of ribs, and are crossed 
T fairly fine spirals, which, c are much more prominent than in 
B. fossilis, and hence easily see 
Brookula iredalei n. sp. (Plate 53, figs. 2a, 2b, 2c.) 
escription of Holotype.—Shell minute, but fairly large for the genus, 
аве "rürblaste, perforate, translucent, shining. Whorls 4, convex, 
ery regularly rounded, ornamented with fine sharp and prominent 
