PARTULA. 135 



Figs. 1", 1'', 1". Partula hyalina. Young of the snail shown in Figs. 1 and 2. 



Figs. 3", 5". Fartula otaheitana. Young of the snails represented in Figs. 



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

 resemble 6°, 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". ' 



Figs. G", G\ PaHiila otaheitana var. lignaria. Young of the snail shown in Fig. 8. Simi- 

 larly colored young are often given by the 

 snail shown in Fig. 7. Very often the 

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

 and 5". 



Fig. 9". Partula filosa. Young of the snails shown in Figs. 9, 10. 



This is a young one of a medium Inie, 

 some being darker and others lighter in 

 color. 



Figs. 11", 11''. Partula sinistrorsa. Young of the snails represented in Figs. 



11-13. 



Figs. 14°, 15". Partula nodosa 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 i)lain colored, while others exhibit 

 distinct wliorl-stripes as in 14". 



