DAPHNELLA. 309 



Michaud, D. gracilis, Scacchi, D. Payraudeauti, Weinkauff (not 

 Deshayes), and perhaps D. Bivonae and D. Valenciennesii, 

 Maravigna, and D. vulpina, Bivona, are also referred to this 

 species. 



D. COSTULATA, Blainv. PL 21, figs. 19, 23. 



Narrowly but distinctly shouldered, ribs 9-10, crossed by fine 

 revolving lines, which are almost microscopic ; buff or pale 

 yellow, sometimes with a chestnut band on the periphery, or 

 below the suture, or with several narrower bands. 



Length, 12-15 mill. 



Europe, Madeira. 



The synonyms are D. btriolata, Scacchi (fig. 19), D. Lceviana, 

 Forbes (fig. 23), D. Smithii, Forbes, D. elegans, Brown, D. Far- 

 ranii, Thompson, and possibly D. fenestrata, Desh., D. Steveni, 

 Krynicki, and D. costulata, Cantraine. The latter was supposed 

 identical with Columbella Haliaeeti, Jeffreys (Manual, v, 160, t. 

 56, f. 77), with which opinion that author himself agreed, until 

 recently (Zool. Proc., 392 r 1883) when he refers it to the present 

 species. 



D. SEMICOLON, S. Wood. PI. 4, fig. 56. 



Strongly shouldered, forming a carinated and tuberculated 

 periphery, with well-marked sculpture. Length, 10 mill. 



Mediterranean, Shetland Islands, North Sea. 



Reported in a recent state by Dr. Jeffreys, from the above 

 localities, under the name of D. galerita, Phil, (figured), but that 

 species, a Sicilian fossil, appears to differ. The figure given by 

 Jeffreys corresponds with that of D. semicolon, in Wood's Crag 

 Mollusca sufficiently to justify Monterosato in uniting the two 

 species. 



D. MINUTA, Forbes. PI. 21, fig. 16. 



Shell strongly ribbed, distantly spirally striate ; reddish brown. 

 Length, 5 mill. 



JEgean Sea. 

 Perhaps a variety of D. turgida, Forbes. 



D. ABYSSICOLA, Forbes. PI. 21, fig. 15. 



Ribs strong, crossed by rather distant raised striae ; chocolate- 

 brown. Length, 4 mill. 



JZgean Sea. 



