224 
posterior keei, while the other encircles the shoulder, about as far posterior to the 
first keel as the otlier intermediate cord is anterior to it. The spaces between 
tliese keels appear flattened and lend the outline of the whorls a polygonal appea- 
rance. Periphery of the last whorls strongly keeled. Base short, well arched, not 
umbilicated, marked by many fine rather closely spaced spiral lirations. Aperture 
suboval, white within, edged with black; outer lip thin, rendered somewhat poly- 
gonal on its posterior half by the spiral cords ; columella slender, decidedly con- 
cave, and slightly reflected ; parietal wall covered with a thick white callus, which 
is black-edged like the lip and renders the peristome continuous. 
Aufenthalt mit der vorigen Form im See von Lanao, die Abbildung nach Bartsch. 
Warum er sie zu mearnsi und nicht zu costata stellt, ist mir weder nach der Be- 
schreibung, noch nach den guten photographischen Abbildungen klar. 
114. Vivipara pagoduia Bartsch. 
Taf. 45. Fig. 5. 
Testa subobtecte et anguste umbilicata, late conica, turrita, tenuis, striatula et lineis 
spiralibus confertis undique ornata, lutescenti viridis, anguste fusco strigata. Apex erosus. 
Anfractus superstites infra suturam late planati, dein angulato-carinati, supra et infra cari- 
nam liris 2 spiralibus cincti, ultimus infra carinam valde exsertam et arcuatam carinulis 2 
confertis, canali angusto separatis, munitus. Apertura irregularis, basi subeffusa, peristoma 
callo tenui vix continuum, margine externo ad carinas angulato-canaliculato, columellari gra- 
cili, concavo, super umbilicum reflexo. 
Alt. 30, diam. inax. 26,5, alt. apert. 15,9 : 13,3 mm. 
Vivipara pagoduia Bartsch, in: Proc. U. St. Nat. Museum 1907 vol. 32 p. 144 
t. 10 fig. 8. 
„Shell thin, broadly conic, t.urreted, greenish yellow with irregulary disposed r 
narrow , dark bands coinciding with the lines of growth. Nepionic whorls decollated. 
Succeeding turns rather depressed, with a broad sloping shoulder above, which ex- 
tends from the summit to the strongly keeled periphery. This shoulder is marked 
by a very strong hollow keel, which falls about one-third of the distance anterior 
to the summit, from the summit to the base of the columella in the last turn. The 
space between the periphery and the summit of the suceeding turn is marked by 
two equally developed spiral keels, which are placed on the vertical side, the lower 
