288 FAUNA HAWAIIENSIS 
Sub-genus THaumatopon Pilsbry. 
(4) L£xndodonta (Thaumatodon) contorta Férussac. 
‘Helix contorta Férussac, Hist. Moll. 1. p. to, pl. ur a, fig. 2 
flelix intercarinata Mighels, P. Boston Soc. 1. (1845), 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. Six 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. 
Has. Oahu (various authors).—Kauai (Perkins). 
(5) L£xdodonta (Thaumatodon) hystricella Pfeiffer. 
Flelix hystricella Pfeiffer, P. Zool. Soc. London, 1859, 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. 
Has. Kauai (Pease).—Oahu, Kaala (Perkins). 
(6) L£xdodonta (Thaumatodon) nuda Ancey. 
Endodonta (Thaumatodon) nuda Ancey, P. Malac. Soc. London, m1. (1899), p. 268, 
pl Xin fig; #2 
Has. Hawaii, Olaa (Ancey). 
(7) Lndodonta (Thaumatodon) ringens Sykes. 
Endodonta ( Thaumatodon) ringens Sykes, P. Malac. Soc. 1. (1896), p. 126. 
Plate XI. figs. 39, 4o. 
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 
