54 SCISSURELLA. 



S. bertheloti Orb., in Webb et Berthelot's Hist. Nat. des lies 

 Canaries, p. 96, t. 7, f. 2-5. 

 S. mantelli Woodward. PL 57, fig. 12. 



Scissurella mantelli resembles the type of the genus, S. elegans 

 d'Orb., but is rather larger, more depressed, more strongly orna- 

 mented, and has a longer scissural band. The specimen has been 

 in my hands several years, but I did not think it worth publishing 

 until I observed that it exhibited a character hitherto omitted in all 

 descriptions of the genus, viz., that the shell when young has no slit. 

 M. d'Orbigny's figures of Scissurella elegans, elaborate and highly 

 mao-nified, represent the scissural band winding round all the whorls 

 and extending to the extreme apex ; but on referring to the speci- 

 mens collected by Mr. Jeffreys at Spezzia, I found that the band 

 really terminated within half a whorl of the aperture — a smaller 

 proportional distance than in S. mantelli, and that during the first 

 part of its life the S. elegans also had a simple, entire lip, like the 

 ordinary Trochidre. ( Woodward.) 



New Zealand. 



Scissurella mantelli Woodward, P. Z. S. 1859, p. 202, t. 46, f. 8. 



Woodward is in error in considering S. elegans the type of 

 Scisurella. 



S. munieri Fischer. 



Shell ovate-conic, subelongate, umbilicate; umbilicus moderate, 

 profound ; whorls 5, rounded, cancellated, nearly plane above, sub- 

 concave ; sutures profound ; anal fasciole wanting on the earlier 2 

 whorls, strongly impressed on the following 3, margins expanded, 

 lamellose, especially on the last whorl ; fissure moderate ; aperture 

 rounded. Alt. l - 66, diam. 1*5 mill. (Fischer.) 



China Sea. 



S. munieri Fischer, Journ. de Conchyl. 1862, p. 390. 



Belongs to the group of Scissurella having elevated spires and 

 allied to S. mantellii Woodw., aspera Phil., etc. (Fischer.) 



S. supraplicata Smith. PI. 58, figs. 27, 28. 



Shell heliciform, spire short, narrowly perforate, thin, semi- 

 pellucid, white, with a caducous rather thick pale olive epidermis; 

 whorls 3, the first — ? (abrupt), second a little convex, somewhat 

 planulate above and radiately arcuately plicate, the last large, having 

 a thin double carina (slit fasciole) a little above the middle, radiately 



