FASCIOLARTA. 75 



identified. Carpenter remarks upon the resemblance of the 

 description to F. tulqia ; I have but little doubt that it should be 

 considered a synonym, and that the locality is erroneous. 



* * Shell shouldered, but not tubereulate. 

 P. LUGUBRis, Reeve. PI. 59, figs. 6, 7. 



Pleshy-brown, covered with a dark olive-brown epidermis. 



Length, 2"5-3 inches. 



Cape of Good Hope. 



F. badia, Krauss (fig. 7), described a year subsequent to F. 

 luyubris, and from the same locality, is evidentl}- sjaionymous. 



* * * Shell shouldered and tubereulate. 

 P. PRiNCEPS, Sowb. PI. 60, figs. 11, 17. 



Nodulous on the shoulder, distantly spiralh' ridged, interstices 

 concave, spirally striate. Light orange, covered with a per- 

 sistent chestnut-brown e])idermis ; columella and interior of 

 aperture orange, the latter with close, revolving, raised red lines, 

 which sometimes tend to separate into groups resembling music 



staves. Length, 6-9 inches. 



Panama to Mazatlan ; Peru ? 



P. P. Caipenter describes the operculum as " pyriform, apex 



terminal ; outside with about five longitudinal furrows on the 



middle and interior ; exterior with irregular diagonal ribs ; inside 



with very large attachment, not corrugated." F. Beevei, Jonas 



(fig. 17), is a poor, faded F. princeps, although it is stated in 



Kiister to be " himmelweit " in its characters. 



F. GiGANTEA, Kieucr. PI. 60, figs. 14-16. 



Shell yellowish-white, covered with a chestnut-brown epider- 

 mis ; flesh-color or j^ellowish within the aperture ; tubercles dis- 

 tant, large. Length, 1 to 2 feet. 



South Carolina; West Indies, Brazil. 



This is the largest known species of univalve shells. F, papu- 

 losa, Sowb. (figs. 15, 16), appears to be the 3'oung : it has priority, 

 but Kiener's name is so well known that I let it stand. 



P. FiLAMENTOSA, Lam. PI. 59, figs. 8-10 ; PI. 60, figs. 12, 13. 



Bluish-white, variegated and streaked with red, brown or 

 orange, the spiral grooves dark chestnut or blackish. Aperture 



