MOLLUSC A 275 



Species occurring in more than one Island. 



Tornatellina. One species, said to be found in Oahu, occurs in the Tonga 

 Islands. Two species are common to Kauai and Oahu, one to Hawaii and Oahu, 

 and one to Kauai, Oahu, and Hawaii. 



Stenogyridae. Opeas juncetis is said to be found in all the Islands, and both this 

 and O. prestoni (Hawaii) occur elsewhere. One species is of uncertain habitat. 



Succmea. Two species in Oahu, Molokai, and Hawaii ; one in Lanai, Oahu, and 

 Maui ; one in Kauai and Hawaii, one in Maui and Molokai. 



Limnaeidae. One species in 'all the Islands'; one in Kauai and Oahu, one 

 in Oahu and Maui ; three of uncertain habitat. 



Melania. One common to Kauai, Oahu, Maui, and Molokai ; one to Kauai 

 and Oahu ; one to Kauai and Molokai ; one of uncertain habitat. 



Helicina. One common to Kauai, Oahu, Lanai, and Molokai ; one to Maui 

 and Lanai. 



Neritina. One common to Maui, Oahu, and Hawaii ; two of uncertain habitat. 

 Two said to be found in 'all the Islands.' 



These three tables show that Kauai has 50 species peculiar to it, Oahu 175, 

 Molokai 44, Lanai 25, Maui 64, Hawaii 37. 



§ 2. Systematic account of the fauna. 



Fam. LIMACIDAE. 



Ainalia Moquin-Tandon. 



Amalia M.-T. Hist. Moll. France, 1855, 11. p. 19 [first species Limax gagates, 

 Drap.]. 



Milax Gray, Cat. Pulm. Brit. Mus. 1855, p. 174 [has the same type; there are, 

 also, older names supposed to be identical, but founded on erroneous characters or 

 improperly described]. 



While dealing with slugs it may be convenient to note that Semper has recorded a 

 species stated to be very near Limax tenelliis Nilsson ; further Dr Cooper is said to 

 have seen a species of Janclla from these islands, but I have been unable to trace his 

 note from the reference given (see Collinge, P. Malac. Soc. London, 11. p. 50). 



(i) Amalia babort Collinge. 

 Amalia babori Qo\(\x\'g's., P. Malac. Soc. London, 11. (1897), p. 294. 

 Hab. Maui, at 5000 ft., Haleakala. — Hawaii, 2000 to 4000 ft., Olaa to Kilauea 

 (Perkins). 



