Jaw and Lingual Dentition of Pulmonata. 193 



tion as species of Partulina and Achatinella, by no means of Par- 

 tula in which A. auricula is placed by v. Martens. Gnlick adopts 

 Frickella, Pfeiffer, as a section of this s. gen. 



B. Terrestrial Genera. 



8. Carelia, H. & A. Adams. 



Type C. adusta, Gould. 

 V. Martens places C adusta (as syn. of bicolor, Jay) in Carelia, s. 

 gen. of Achatina. Pfeifl'er iucludes species of Carelia in Sp>iraxis, 

 C. B. Ad. 



9. Amastra, H. & A. Adams. 



Type A. magna, C. B. Ad. 

 This embraces species placed both in Laminella and Loptachatina by 



v. Martens. His type, A. tarritella, Fer., of Leptachatina, is in 



Amastra of Gulick. 

 10. Leptachatina, Gould. 



Type L. acuminata, Gould. 

 Gulick includes section Labiella, Pfr., treated by v. Mart, and 



Pfeiffer, as a separate s. genus. 



In explanation of Gulick's views I add the following ex- 

 tract from a letter addressed to nic by him, dated China, 

 April 11, 1874. 



"It appears from the teeth, that Pfeiffer was right in putting Auriculella 

 with the Achatellince. I am sorry that when last in the Sandwich Islands, 

 I did not succeed in getting any specimens of Carelia or Neiccomhia for 

 examination. The latter is undoubtedly allied to Partulina, the former 

 is more nearly allied to Amastra, but the form is so different, it would be 

 very interesting to know about the teeth.* 



Achatinella, Dulimella and Apex are evidently closely allied, but any 

 classification which, like Pfeiffer's, recognizes the difference between the 

 first two should also recognize the last, which is quite as distinct. 



Achatinella and Bulimella are completely graded together by the varie- 

 ties of A. casta and A. oviformis, Newc. and of B. Sowerbyana, Pfr. 



Under the name Laminella I group only a few species, viz., L. gravida, 

 straminca and sanguined on Oahu, citrina and venusta on Molokai, tetrao on 

 Lanai, bulbosa on E. Maui, and picta on \V. Maui ; these are all arboreal 

 in their habits and sinistral in form, while the numerous species of Amas- 

 tra are, with but rare exceptions, confined to the ground and dextral in 

 form. A. soror and A. acuta are the only sinistral species that I now re- 

 member. Of most of the species, sinistral specimens have never been 

 seen." 



* I am disinclined to adopt the views of Pfeiffer and v. Martens, that Carelia be- 

 longs either to Achatina or Spiraxis. 



