MOLLUSCA FROM JUAN FERNANDEZ AND EASTER ISLAND 227 
Fam. Endodontidae. 
Punctum depressum n. sp. Pl. 8, figs. 24—26. — Shell depressed, with 
slightly projecting spire, impressed suture and convex whorls, the last rounded 
but obscurely angulated in the periphery. Base i 
slightly convex with a wide and deep perspective iGhe x s . 
umbilicus (its breadth almost half that of the last ~~ e NPP RPP CREE 
whorl). Sculpture consisting of weak costae at , 
almost regular intervals, beginning in the second 
whorl and extending also on the base to the 
umbilicus, the entire shell, further, very minutely 
and closely striated spirally. Apical whorl smooth. 
Aperture almost circular (lips simple, not conti- 
nuous), colour horn-brown, cuticula shining. Whorls 
4. Dimensions: diam. 1,95, height 1,15 mm. : 
This species is easily distinguished from the 
following one in its more depressed shape, its 
large umbilicus and circular aperture, as well as 
in its more distinct spiral striation, and its costae. 
Also in young specimens these characteristics are 
quite distinct, but here the whorls are somewhat 
shouldered, and the aperture is extended in its Figs. 4, 5. Teeth from the radula 
: : : : (X 730) and jaw (X 250) of Punctum 
height and is reniform in shape. depressum XN. sp. 
Localities: Masatierra (Aug. 1917): The Porte- 
zuelo quebrada, up to 200 m above sea level, among leaves and on ferns, many 
sps. — Puerto Ingles, about 4oo m, thick forest, many sps., and 300 m, thin 
forest, numerous sps.; 200 m, in leaves, numerous sps. — Puerto Frances, among 
leaves on the soil, 3 sps. — In the bottom of Rabanal, about 100 m, numerous 
sps. — Rabanal, down in the quebrada, under leaves, a few sps. — Pangal, on 
ferns and under leaves, a few sps. — The Yunque quebrada, the middle part, 
among leaves and in ferns, many sps. (figs. 24—26), and lower part, 2 sps. — 
Masatierra (?°/4 1917) in leaves, 2 sps. 
The radula (text-fig. 4) has about 100 rows, each being of the formula 
16—18.1.16—18; all teeth bicuspid (except median one). The jaw (fig. 5) has 
about 17 plates of the peculiar fibrous structure characteristic of Punctum. 

Punctum conicum n. sp. PI. 8, figs. 18—23. — Shell depressed, globose- 
conic, with narrow convex slowly increasing whorls and impressed suture, the 
last whorl bluntly angulated at the periphery. Base slightly convex with a 
narrow, but deep, umbilicus. Sculpture consisting of irregular raised lines of 
growth, distinct on the upper side of the whorls, vanishing on the base towards 
the umbilicus; the two apical whorls smooth. Aperture about half the height 
of the shell, ovate, with acute simple outer and lower lips and a somewhat 
thicker reflected columellar margin. Colour straw-yellow; cuticula shining. 
Dimensions: diam. 1,05; height 0,7 mm; whorls 3 */s. 
