TORNATELLINA. 



polymorpha) trees (Cooke) ; western ridge of Popouwela 

 (Spalding, Cooke, Pilsbry). 



Tornatellina cylindrica SYKES, Fauna Hawaiiensis, Moll., 

 1901, p. 381, pi. 9, fig. 28. ANCEY, Journ. de Conchyl., li, 

 1903, p. 301, pi. 12, figs. 11, 12. 



None of the specimens of this species seen in the collection 

 of the British Museum nor any of those of the original lot 

 sent to the Bishop Museum are perforate, and it is likely that 

 this term was used in the diagnosis by oversight. 



Shells from the ' ' Endodonta locality ' ? on the western ridge 

 of Popouwela, Waianae Mts., are typical. In the adult stage 

 (pi. 40, fig. 2), the parietal lamella is very strongly developed 

 and fully a half-whorl long. The columella is strongly spiral, 

 terminating in a projecting point as usual. The last whorl, 

 in fully mature shells, is either somewhat flattened or convex 

 peripherally. Length 2.9, diam. 1 mm., aperture 0.9 mm. 

 long; whorls 5^. 



In the early metaneanic stage (pi. 40, fig. 1) the parietal 

 lamella is bifid at the edge, the columella is triplicate, median 

 lamella much the largest, and there is a palatal rib. Later 

 stages are like the adult form. These specimens were obtained 

 from leaf sittings. 



Specimens from the Waianae mountains (pi. 43, figs. 1, 2, 

 3) are slightly larger (length 2.6, diam. 1.2 mm.) than Sykes' 

 type. There are slightly over 5 somewhat flattened whorls. 

 The outlines of the spire are almost straight. 



An example at the metaneanic stage (fig. 3) is 1.9 mm. in 

 length and has 4y 2 whorls. The parietal lamella is strongly 

 developed, lobed and with a sinuous margin. The columella 

 is triplicate : the upper fold is quite strong, the median very 

 strong and there is a minute basal nodule. There are two 

 well-developed palatal ribs, one of which, the outer, has three 

 distinct teeth on its margin. 



We have not verified the locality Kauai. The species is re- 

 lated to T. polygnampta, but its lamellae are less sinuated in 

 the neanic stage. 



1;V/. '/'. r. kUvhiumiKi i). subsp. PL 40, figs. 3,6. The shell 



