PHILINE. 447 



It is the genus Lobaria of Miiller, and Bull&a of La- 

 mark ; the former was carelessly referred by Rang to 

 the shelless genus Acera (" acere ") of Cuvier. 



A. Having a chain-like or punctate sculpture ; spire con- 

 spicuous. 



N*. *7 fc 1. PHILINE SCABRA *,(Muller?) (?l- 9^ 



Bulla scabra, Miill. Zool. Dan. ii. p. 41, t. Ixxi. f. 10-12. P. scabra, 

 F. & H. iii. p. 543, pi. cxiv. E. f. 4, 5, and (animal) pi. VV. f. 1, as 

 Bull&a scabra. 



BODY elongated, whitish or creamcolour, sometimes minutely 

 speckled with black : mantle folded over the crown and under- 

 side of the shell, ending behind in two angular points : head 

 large, broad, and gibbous ; the upper part or tentacular disk is 

 rounded behind, and marked lengthwise by a slight darkish line 

 of division: foot oval and very large, wedge-shaped in front, and 

 rounded behind ; side-lobes broad : gizzard-plates shuttle- 

 shaped and equal-sized, having a flat rib down the middle 

 with a small depression on each side : [odontophore armed with 

 two rows of uncini ; inner ones much the larger, lobed on the 

 inside and jagged ; outer ones minute and plain-edged 

 (Loven).] 



SHELL resembling in shape a miniature Scaphander ligna- 

 rius, but more cylindrical ; it is of a delicate texture, semi- 

 transparent, and of a glistening and iridescent lustre : sculp- 

 ture, numerous and close-set spiral and parallel rows of minute 

 oval dots which are interwoven and arranged like the links of 

 a chain ; some of these rows being intermediate, and ap- 

 parently squeezed or compressed at the sides, become merely 

 fine lines ; the front edge or base of the mouth and top of the 

 outer lip are exquisitly fringed with sharpish points, like short 

 teeth of a comb : colour clear white when the shell is ex- 

 tracted from the animal, afterwards becoming milk-white : 

 spire slightly prominent : whorls 3 ; the body-whorl (as usual 

 in this genus) is disproportionately large and voluminous; 

 the other two are small, with an indistinct and thickened 

 nucleus : suture deep and channelled : mouth acute-angled 

 above, and greatly expanded below, with a squarish base : 

 outer lip gently curved, folding inwards on the upper part ; 



* Scratched. 



