284 PLANISPIRA. 



Diam maj. 14?, min. 12i, alt. 11 mill. 

 Diam. maj. 14, min. 12, alt. 10 mill. 

 Diam. maj. 13, min. 1CM, alt. 9 mill. 

 Diam. maj. 12, min. 11, alt. 9J mill. 



Ka-Tokawai, East Soemba, and Soemba, without more definite 

 locality. 



Helix supracostulata SCHEPM., Notes from the Leyden Museum, 

 xiv, p. 150, t. 6, f. 1 (July, 1892). 



This species approaches Helix solorensis, but the latter is larger, 

 more umbilicated, nearly smooth and without teeth in the aperture; 

 it resembles very much H. reinga Gray (Reeve, Conch. Icon. fig. 

 772), but the aperture is rounded and not triangularly lunar. The 

 sculpture in H. reinga is called obliquely striated, and no mention 

 is made of a second tooth on the outer lip. 



The specimens vary in shape and size and in the number of 

 the bands, which in some specimens are nearly limited to the 

 sutural and peripheral ones; in other specimens the whole shell 

 is banded. (Schepm.') 



Genus PLANISPIRA Beck. (Vol. VI, p. 274.) 



It is doubtful whether this group should be separated generic- 

 ally from Chloritis. 



Three sections are distinctly differentiated within the group : 

 Planispira s. sir., and Cristigibba, defined and limited in the Man- 

 ual VI, and Trachiopsis (n. sect.), proposed to include the Austra- 

 lasian species hitherto grouped under Trachia. 



Trachiopsis is anatomically unknown. The shell is small and 

 shaped like Planispira, but has more cylidrincal whorls, covered 

 with a brownish cuticle, and constricted behind the lip. The aper- 

 ture is round or angular, oblique, and the lip is well expanded and 

 reflexed. As in the typical Planispira, the basal lip has a tendency 

 to become toothed. Type H. tuckeri Pfr. 



Section Planispira s. str. 



P. ZONARIA Linn. (Vol. VI, p. 277.) 



Boettger recognizes var. lineolata Mts., nitidiuscula Bttg., subvar. 

 albina Mts., var. Jasciolata Less. (+ collis Mouss.). See Ber. 

 Senck. Ges. 1891, p. 265, 266. 



P. HALMAHERICA Strubell, Nachr.-BL D. M. Ges. 1892, p. 44. 



