FROM TALIABU. 123 



altitude, is allied to H. Fruhstorferi Martens aud to H. 

 riifolineata iSmith, intersecta Smith and honthainensis Smith ; 

 H. riifolineata from Lombok and H, honthainensis from 

 Celebes, are at ouce to be distinguished by their granular 

 sculpture; H. intersecta, which I have not seen, seems to 

 have no spiral sculpture. The nearest ally, also in sculpture, 

 is H. Fruhstorferi^ but the new species differs by a stronger 

 shell, less conspicuous keel and by the rufous band; in the 

 new species the whorls are convex, with strongly impressed 

 suture, in Fruhstorferi the median whorls are scarcely con- 

 vex, with a very shallow suture. 



4. Trochomorpha Nouhuysi, n. sp. 



Shell orbicular, widely umbilicate, sharply keeled, reddish 

 brown, with a darker zone above the keel ; base chestnut- 

 brown, keel whitish ; spire moderately elevated, with a blunt 

 apex, whorls S'/^, slightly convex, suture shallow by the 

 prominent keel which is distinctly visible on the lower 

 whorls as a thin whitish thread, base flatter than the upper 

 part of shell. Sculpture consisting of fine growth-striae, 

 mixed with a few stronger ones, becoming coarser on the 

 last whorl, nearly riblike towards the aperture, especially 

 near the keel; sculpture of the base much finer. Umbilicus 

 pervious, funnel-shaped, occupying about '/g of the diameter 

 of the shell. Aperture depressedly-lunate, upper margin 

 straight and thin; basal and columellar margins regularly 

 curved, slightly thickened. 



Diam. maj. 19^/^, min. 1774» alt. 7, apert. alt. obi. 5'/2j 

 lat. 8 Mill. 



This species is by its shape and size, quite different from 

 the bi-coloured species of the East Indian Archipelago. 



5. Chloritis macrostoma Gude. 



Gude, Proc. Mai. Soc. Lond. Vol. VII, 1906, p. 42, 

 PI. 5, figs. 7-7 6. 



Of this species several specimens have been collected, 



Notes from tlie Leyden Miuseum , Vol. XXVIII. 



