56 



36. Olivina zanoeta. 



Blackish, with a subcentral white band. 



Oliva zanoeta, Duclos, Oliv. t. 2. f. 9, 10 ; Reeve, C. 1. 1. 26. f. 76. 



10. SCAPHULA. 



Shell ovate, spire conical, sutural groove open to the apex ; aper- 

 ture ovate ; inner lip rather expanded, thickened, defined, smooth, 

 with two small plaits in front ; anterior belt very narrow. Foot 

 (Oliva biplicata or auriculatal) rather short, about the length of 

 the shell, broad,"much dilated on the sides and covering the whole 

 of the shell ; the front lobes very large, broad, oblong, rounded on 

 the sides. Head hidden. Tentacles none. Eyes none. Operculum 

 none. Animal pale grey-brown, not spotted. 



1. SCAPHULA BIPLICATA. 



Grey- brown ; inner lip white ; spire conical ; suture dark brown. 



Oliva biplicata, Sow. Tank. Cat. 33 ; Duclos, Oliv. t. 3. f. 9, 10 ; 

 Reeve, C.I. t.20. f. 48. 



Oliva nux, Goodall, Wood, Cat. Supp. t. 4. f. 33. 



Olivancilla auricularia, D'Orb. Voy. Amer. Merid. 421. t. 59. 

 f. 20-22 shell (animal ?). 



Though M. D'Orbigny in his text correctly described Oliva auri- 

 cularia of Lamarck, yet in his figure of the animal he represents 

 the shell of Oliva biplicata, which does not even answer to the cha- 

 racter of the genus to which he refers it ; M. Deshayes has re- 

 ferred both animal and shell to that species (see Lamk. Hist. ed. 2. 

 x. 634). 



M. Duclos to obviate the inconsistency — on what authority I do 

 not know — in his enlarged copy of M. D'Orbigny's figure of the 

 animal, places on it a figure of the shell of the true Oliva auricu- 

 laria of Lamarck ! 



It must be left to succeeding naturalists to discover if the animal 

 figured by M. D'Orbigny is that of O. biplicata or O. auricularia. 

 My genus Scaphula was established on D'Orbigny's account of the 

 animal. 



2. Scaphula rosalina. 



White, with di stant zigzag yellow lines ; front of pillar rose-co- 

 loured. 



Oliva rosalina, Duclos, Oliv. t. 1. f. 1, 2 ; Reeve, C. 1. 1. 30. f. 99. 



11. Micana. 



Shell ovate or obconic ; spire conical, callous ; upper sutural 

 groove obliterated ; aperture ovate ; inner lip thickened, expanded ; 

 pillar with two small grooves in front ; anterior belt narrow, single. 

 Animal ? Operculum half-ovate, horny. 



