SCALARIA. 73 



S. CLATHRATULA, Adams. PI. 15, figs. 70, 61 ; PI. 13, fig. 17. 



Rather thin, semitransparent, glossy, white, irregularly, indis- 

 tinctly, spirally striated; whorls 12-13, convex, with deep suture, 

 crossed by about 18, subequal, thin, erect lamellje. Length, 15 mill. 



Europe; Madeira; New England. 



The last locality is for S. Dalliana, Verrill and Smith, (fig. 61), 

 dredged by the U. S. Fish Commission, and which Dr. Jeffreys makes 

 a synonym. ;S'. Georgettina, Kiener has also been referred here by 

 Dr. Jeffreys, probably correctly. 



Var SPINOSA, Jeffreys. 



The ribs a little aculeate at the suture. 

 Var. PRODUCTA, Jeffreys. 



Spire longer, ribs much more numerous. 



S. HELLENicA, Forbcs. PL 15, fig. 71. ' 



Narrow, subcylindrical, whorls 8, with low, distant costae, slightly 

 coronate at the suture, aperture margined. Length, 8 mill. 



Mediterranean Sea, Canary Islands. 



The figure of Rissoa coronata, Phil, which I copy, appears to 

 represent that genus rather than a Scalaria but Dr. Jeflfreys makes 

 it a doubtful synonym. He also refers here S. Scacchii, Homes. 



S. PULCHELLA, Bivona. PI 15, fig. 72. 



White, whorls 10, very convex, with close, numerous, slender 

 lamellse. Length, 18 mill. 



Mediterranean Sea. 

 S. Bairdii, Smith, PI. 15, fig. 73. 



Bluish white, finely spirally striate; whorls 9, with moderate 

 lamellae, obsolete in the middle of the whorls, raised into knobs at 

 the suture, where the interstices are somewhat pitted. 



Length, 15 mill. 



Whydah, W. Africa. 



Reeve's figure of this species differs so much from the original 

 illustration that I doubt it ; it recalls S. crenata, Linn. 



S. Webbii, d'Orb. PI. 17, fig. 53. 



Whorls about 6, convex, spirally striated, with about 23, equal, 

 low, slight lamellae. Length, 4 mill. 



Teneriffe. 



