TOR NATELL ARIA. 265 



Tornatellina henshawi ANCEY, Journ. de Conchyl. li, 1903, 

 p. 299, pi. 12, f. 9, 10. T. cincta ANC., Journ. of Malac. xi, 

 1904, p. 63. 



A species related to T. abbreviata but decidedly more 

 lengthened and having more whorls. It is intermediate be- 

 tween the latter and T. newcombi Pfr., T. cincta Anc., but 

 differs from these two forms by the closer whorls, and from 

 the first by the narrower umbilicus, more numerous whorls, 

 larger size and so on ; from the second by the weaker folds 

 and lamellae, the last whorl very little or not at all angular 

 at its origin, and the smaller umbilicus (Ancey). 



The type specimen measures, length 4.9, diam. 2.6, axis of 

 apert. 1.8 mm. The parietal lamella is 0.25 mm. in height. 



This species is most closely related to T. sykesi P. & C. 

 from the same island. In the former species the outlines of 

 the spire are less convex, the umbilicus is narrower, the parie- 

 tal lamella is not as strong and the upper columellar fold 

 less strongly developed. 



The spiral striaa on the apical whorls of T. henshawi are 

 very low and indistinct on all the specimens at hand. The 

 umbilicus is less than 1/20 of the diameter of the shell. 



Figured from a cotype. 



A specimen (Bishop Mus. no. 34027) from the fossil beds of 

 Waimea, collected by Mr. Henshaw, measures, length 5.8 diam. 

 2.8 mm. and has 8 whorls. 



This is undoubtedly the form Ancey identified from there 

 as T. cincta (Journ. of Malac. xi, 1904, p. 63). 



11. T. SYKESII C. & P., n. sp. PI. 55, fig. 6. 



The shell is perforate, ovate conic, brownish corneous with 

 a broad pale band at the periphery, transparent, shining, 

 nearly smooth, minutely striate with lines of growth. Spire 

 conic, with slightly convex outlines. Suture scarcely im- 

 pressed, distinctly margined. Whorls 8, nearly flat, slightly 

 convex, slowly increasing, compressed, the last broadly ovate, 

 faintly marked with a light broad band at the periphery, base 

 convex, slightly tapering. Aperture rather small, broadly 

 ovate. Parietal lamella strong, very oblique, slightly arcuate. 



