PARTULA. 



135 



Figs. 1", l**, 1". Purtula hyalina. 

 Figs. 3", 5°. Partula otaheitana. 



Figs. 6", 6^ Partula otaheitana var. lignaria. 



Fig. 9". Partula filosa. 



Figs. 11", 11*. Partula sinisfrorsa. 



Young of the suail shown in Figs. 1 and 2. 



Young of the snails represented in Figs. 

 3 and 5. Many of the young of Fig. 3 

 resemble 5", while very often the young 

 of Fig. 5 resemble 3". Snails of the 

 color type shown in Figs. 4, 6, 7, and 8 

 often give young of the types represented 

 in Figs. 3" and 5°. 



Young of the snail shown iu Fig. 8. Simi- 

 larly colored yovmg are often given by the 

 snail shown in Fig. 7. Very often the 

 young of Figs. 6 and 7 resemble Figs. 3" 

 and 5". 



Young of the snails shown in Figs. 9, 10. 

 This is a young one of a medium hue, 

 some being darker and others lighter in 

 color. 



Young of the snails represented in Figs. 

 11-13. 



Figs. 14", 15". Partula n.odosa var. sinistralis. Young of the snails shown in Figs. 14 and 



15. Some of the young of Fig. 14 re- 

 semble 15", while some of the young of 

 Fig. 15 resemble 14". Some of the young 

 are plain colored, while others exhibit 

 distinct whorl-stripes as iu 14". 



