VERMETUS. 175 



deepest on the back, more bluish and lighter towards the mar- 

 gins of the foot. MORCH. 



It is V. effusus, Val. (fig. 36), V. angulatus, Rouss. (fig. 37). 



Var. PANAMENSIS, Rouss. (fig. 35). = Yar. maxima, Morch. 

 Differs in its smoo h surface and deep transverse furrows. 



Var. PERONII, Val. (fig. 38). Without impressed punctations. 



Yar. SIPHONATA, Morch (fig. 39). = V. Peronii, Rouss., non 

 Val. Subcylindrical, spirally twisted, vertically attached, 

 suture dilated, with close, very obsolete nodulous lime, the 

 interstices impressed punctate. Diam. apert. 5'5 mill. 

 Puntarenas. 



Yar. TULTPA, Rouss. (fig. 40). Laterally attached, irregularly 

 spirally twisted ; whorls oblique, smooth or very obsoletely 

 sculptured on the later whorls, variegated violaceous and 

 white. 



Yar. BRIEGESII, Morch (unfigured). Very like the last, but the 

 color is mostly obliterated and the last whorl is partly free 

 and erect. 



V. Rouss^i, Vaillant. PL 51, fig. 43. 



Earlier whorls spirally twisted, afterwards lengthened, undu- 

 lated, longitudinally lirate, line fading towards the aperture, 

 cancellate towards the base, which is flattened. 



Timor. 



The figures of Chenu's Illust. Conch, represent two species. 

 One of these is selected by Morch as best answering the original 

 description of F. sipho, Lam., and I have copied it; the other 

 appears to be a F. polyphragma, Sassi. Vaillant, from an exam- 

 ination of specimens in the Paris Museum, thinks that neither of 

 these figures represents the type, and he therefore describes the 

 sipho of Rousseau and Morch, as F. Boussaei, Vaillant. I may 

 add that none of the figures cited by Lamarck himself agree 

 with his description. 



Unfigured Species of Vermetus. 



V. BALANI-TINTINNABULT, Morch, and Yar. CRYSTALLINA, Morch. 



Philippines. 

 V. PACHYLASMA, Morch. (Possibly a fossil.) f Guinea. 



