296 Transactions. — Zoology. 



Trocliocolea constricta, Lamarck. 



I have specimens from Auckland, sent by Mr. T. P. Clieeseman. 



Trocliocolea mimetica, Hiitton ; Jour, de Conch,, 1877. 



Perforated. Inner Hx? thin, shghtly expanded over the always open 

 umbilicus. Purple, with oblique, slightly waved white lines. Columella 

 more or less stained with green. L. -5 ; B. -6. 



Hab. Auckland — Mr. T. F. Cheeseman. 



Gihhula 2)lumhea, Hutton ; Jour, de Conch., 1877. 



G. niticla, Cat. Mar. Moll ; not of Adams, 'wMcli is Chrysostoma incons;piciM 

 of the Cat. Mar. Mollixsca. 



Gibbula op2)ressa, Hutton ; Jour, de Conch., 1877. 



"Whorls flattened ^Dosteriorly, and more or less keeled. Closely spirally 

 ribbed, the ribs rounded but rather rough. Axis sub-perforated ; aperture 

 sub-rhomboidal. Dark purplish-black. L. '23 ; B. -25. 



Hab. Auckland — Mr. T. F. Cheeseman. 



Trochus ( Cantharidiis) texturatus, Gould. 



This is the same as G. purpuratus, Martyn. 



Trochus (Cantharidiis) jucwndns, Gould. 



I have seen no specimens of this species. 



" Shell small solid, low conical, composed of about six conical whorls, 

 with a shght vertical portion at base ; the whole girdled with fine, miiform, 

 beaded lines, the alternate ones being generally smaller, sometimes even 

 not beaded, and the two basal ones surrounding the vertical portion being 

 larger ; base a httle convex, similarly sculptiu-ed with about twelve con- 

 centric lines gradually diminishing from the centre to the circumference ; 

 the umbilical region colourless, not perforated, and with a groove-hke 

 impression beside the columella ; aperture rhomboidal-orbiculate ; columella 

 arcuate, smooth, lip simple. Colours arranged in radiating fiamules, 

 alternately white, strawberry-red, and pale flesh-colour, gradually shaded 

 into each other ; on the base the dark or light red are distributed along 

 the granules in a somewhat articulate manner ; nacreous beneath. Axis 

 •| inch ; diameter f inch." ( Gould j. 



Trochus (Margarita) jnipillus, Gould. 



I have collected what I take to be this species in Otago. 



Gadinia nivea, Hutton; Jour, de Conch., 1877. 



Irregularly oval, white ; with about forty sharp radiating ridges, crossed 

 by concentric lines of growth. L. '8 ; B. '7. 

 Hab. Otago. 



Patella unguis-ahiKe, Lesson; Voy. Coquille, II., p. 420. 

 This is the same as Tcctura fragilis, Chemn. 



