398 JEFFREYSIA-SKENEA. 



another series on the periphery of the last whorl; whorls 4, convex, 

 with impressed suture. Length, 2 mill. 



New Zealand (on seawood). 



Family SKENEID^. 

 Genus SKENEA, Fleming. 1828. 



S. SUBCANATICULATA, E. A. Smith. PI. 60, figs. 98, 99. 



Shell thin, subdiaphanous, whitish, widely, profoundly umbilica- 

 ted; whorls 3, slowly increasing, convex, with deep, almost chan- 

 neled suture. Diam. 1*3 mill. 



Kerguelen Island. 

 S. PLANORBIS, Fabr. PL 60, fig. 100. 



Rather thin, widely, patulously umbilicated, opaque, brownish- 

 yellow, or pale olivaceous, spire slightly elevated; whorls 4, sub- 

 cylindrical, rapidly increasing, smooth, base subconcave, suture 

 deep. Diam. 1*4 mill. 



Europe, Greenland to Massachusetts. 



It is Helix depressa, Mont., and S. trochiformis, Locard. S, serpul- 

 oides of Gould and earlier American authors is also to be placed 

 here. 



S. SERPULOIDES, Montg. PL 60. figs. 1, 2. 



Widely umbilicated, its wall with spiral striae, brownish yellow, 

 smooth; whorls 4, cylindrical, spire a little elevated, suture deep. 



Diam. 1 mill. 



Europe. 



It is Delphinula Icevis, Phil. (fig. 1.), and 8. divisa, Forbes and 

 Hauley. 



Uiifigured Species. 



S. IIKLICINA, (Jeffreys, Ms.), Monts. Mediterranean. 



S. pellucida, Monts. is a synonym. 



S. PETITII, Fischer. (Not a Skenea ?) West In<H<>*. 



S. CORNUELLA, A. Ad. Japan. 



Family ('I1O1UXT1DM. 

 Genus C5HOEISTE8, Carpenter, 1872. 



C. ELKCJANS, ('ill 1 ]). PI. 01, iir. 3. 



Thin, fragile, moderately umbilicated, epidermis thin, caducous, 



