134 



VOLUTA Liictatorjiin. 

 TAB. CCCXCVil. 



Spec. Char. Ovato-elon,^ated, acute, costatecl, 

 crowned with one row of large and another 

 of small, short, acute, spines, transversely 

 sulcated ; columella with three or more 

 folds ; lip often plaited within, its edge cre- 

 nulated. 



Syn. Strombusdubius, SranderQQ. V. Luctator 

 Min. Couch, 115,/. 1. 



jtV HANDSOME regularly formed shell, covered uniformly 

 below the spines, with broadish flat furrows and minute 

 longitudinal strise, or lines of growth ; the superior row 

 of spines consists of small and irregular ones ; the last 

 whorlis not ventricose. 



Very abundant at Barton : the only actual difference 

 between the Voluta dubia, and the Luctator fig. 61. of 

 Brander, appears to consist in the plaits within the lip ; 

 a series of specimens from the figures before us, to figure 

 1 of table 115. and even larger is easily obtained, in 

 which most of the small and middle sized ones will be 

 found to have plaited lips, while in the large ones the 

 lips are smooth and thin, but even in these there are 

 sometimes indications of plaits, especially at some dis- 

 tance within the edge, leaving the only character very 

 equivocal. Athough Lamarck quotes Brander's S. Luc- 

 tutor, his V. musicalis is a longer and quite different 

 shell, a circimistance we were not aware of, when we 

 figured the former. Brander himself, or Solander, has 

 confounded V. spinosa, which Lamarck has properly 

 separated, and V. depauperata, above described, with 

 Luctator, although they are both more ventricose, and 

 have no furrows upon the upper parts of their whorls ; 

 for the contrary reason the V. spinosa /3- of Min. Conch. 

 tab. Ii5. jig. 3. ought perhaps to be considered a species 

 rather than a variety ; there occur however intermediate 

 iurras. 



