224 



posterior keel, while the other encircles the Shoulder, about as far posterior to the 

 first keel as the other intermediate cord is anterior to it. The Spaces between 

 these 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 hp 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 pagodula 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 aiigusto separatis, munitus. Apertura irregularis, basi subeflfusa, peristoma 

 callo tenui vix continuum, margine externe ad carinas angulato-canaliculato, columellari gra- 

 cili, concavo, super umbilicum reflexo. 



Alt. 30, diam. niax. 26,5, alt. apert. 15,9 : 13,3 mm. 



Vivipara pagodula Bartsch, in: Free. ü. St. Nat. Museum 1907 vol. 32 p. 144 

 t. 10 fig. 8. - 



„Shell thin, broadly conic, turreted, greenish yellow with irregulary disposed, 

 narrow, dark bands coinciding with the lines of growth. Nepionic whorls decoUated. 

 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 hoUow 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. Th& 

 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 



