62 SCALARIA. 



crispate at the suture and almost disappearing on the middle of 

 the whorls. Length, 7 mill. 



Philippines. 



Described by H. Adams as S. delicatula, a name preoccupied 

 by Crosse and subsequently changed as above by Adams, and 

 a year later to S. subnudata, by Sowerby. 



S. JEFFREYSII, Tryon. PI. 12, fig. 78. 



Slightly umbilicated, thin, semitransparent, glossy, whitish, 

 with a few delicate, rounded, spiral striae, more conspicuous 

 towards the base of each whorl; whorls 10-12, convex, with 

 moderate suture, with about 25-30 low, rounded riblets, incon- 

 spicuous or obsolete on the body-whorl. Length, 12 mill. 



Atlantic 0. (Porcupine Exped.). 



Described by Dr. Jeffreys as S. tenera, preoccupied (see pre- 

 ceding species). 



S. FORMOSISSIMA, Jeffreys. PI. 17, fig. 34. 



Narrowly umbilicated, very thin, nearly transparent, rather 

 glossy, white ; whorls 12, con vex, narrowly, slopingly shouldered, 

 with 40-50 crowded, slight riblets, closely decussated by thread- 

 like spiral striae. Length, 15 mill. 



Azores. 



S. PYRAMIDALIS, Sowb. PI. 13, fig. 89. 



Narrowly umbilicated; whorls 9, well rounded and scarcely in 

 contact, with rather distant lamellae, narrowly angulated and 

 produced at the top of each whorl. Length, 1-25 inches. 



Philippines. 

 Section CLATHRUS, Oken, 1815. 



S. GRADATA, Hinds. PI. 13, fig. 88. 



Whorls 12, slowly increasing, narrow-shouldered above, 

 lamellae numerous, oblique, a little produced on the angle of the 

 shoulder. Length, 1*5 inches. 



Amboyna. 



S. nodosa, Cpr. MS., in Brit. Mus., is a synonym. 



S. AUSTRO-CALEDONICA, Montr. PI. 13, fig. 94. 



Whorls thin, 8 or 9 in number, separate, joined by 7 strong 

 lamellae, which are shouldered and aculeate at the top of each 

 whorl ; white, with a single irregular chestnut band. 



Length, 23 mill. New Caledonia. 



