288 FAUNA HAWAIIENSIS 



Sub-genus Tiiaumatodon Pilsbry. 



(4) Endodonta {Tkaumaiodon) contorta Ferussac. 



Helix contorta Ferussac, Hist. Moll. i. p. 10, pi. i.i. a, fig. 2. 

 Helix intercarinata Mighels, P. Boston Soc. 11. (1S45), p. 18. 



Specimens found by Mr Perkins, and which I refer to this species, appear to shew 

 considerable variation and may be divided as follows : 



A. Si.x specimens, fairly typical in shape and size, but only one is furnished with 

 five palatal teeth, the others having four. 



B. One specimen, darker in colouration, the colour markings being very distinct, 

 palatal teeth five, these being remarkably incrassated. 



C. A long series (from Makaweli), larger, slightly more strongly sculptured and 

 very variable in colouration, sometimes the dark brown colour predominating, at others 

 a greenish yellow. All appear to have four palatal teeth only. 



Hab. Oahu (various authors). — Kauai (Perkins). 



(5) Endodonta [Thaumatodori) hystricella Pfeiffer. 



Helix hystricella Pfeiffer, P. Zool. Soc. London, 1S59, p. 25. 



The original examples of this unfigured species, referred to as in Mus. Cuming, 

 do not appear to be now in the British Museum. Two specimens found by Mr Perkins 

 agree well with Pfeiffer's diagnosis and dimensions ; they also accord in the number of 

 teeth. 



Hab. Kauai (Pease). — Oahu, Kaala (Perkins). 



(6) Endodonta [T/iaiujtatodon) nuda Ancey. 



Endodonta {Tkaumaiodon) nuda Ancey, P. Malac. Soc. London, iii. (1899), p. 268, 



pi. XII. fig. I. 

 Hab. Hawaii, Olaa (.Ancey). 



(7) Endodonta [Thaninatodon) riuQriis Sykes. 



Endodonta {Tiiaumatodon) ringens Sykes, P. Malac. Soc. 11. (1896), p. 126. 

 Plate XL figs. 39, 40. 



In describing this species, I referred to it as having four teeth within the outer 

 lip; perhaps it would be more correct to say "one basal tooth and three within the 



