FARCIMEN. 29 



Megalomastoma flavula Swains. Malac. 

 Megalomast. cylindraceum Pfeiffer, 1. c. 109. n. 4. 



a. ? 



b. Porto Rico. 



2. Farcimen croceum. 



Cyclost. croceum Sow. Thes. Conch, i. 150. n. 167. t. 29. f. 190, 

 191.; Pfeiffer, Kuster, Chemn. Conch. Cab. i. 19. t. 24. f. 15, 16. 



Turbo croceus Billw. Cat. ii. 862. n. 112. 



Cyclost. flavula Lamck. Enc. Meth. t. 461. f. 6. a. b., An. s, Vert. vi. 

 146. 2nd ed. viii. 357. n. 13.; Webb et Berth. Syn. Moll. Canar. 

 18. n. 3.; Desk. Enc. Meth. Vers, ii. 40. n. 8. 



Megalomast. croceum Pfeiffer, 1. c. 109. n. 5. 



a. ? 



3. Farcimen sectilabrum. 



Cyclost. sectilabrum Gould; Pfeiffer, Kuster, Chemn. Conch. Cab. 



i. 19. t.24. f. 17, 18. 

 Megalomast. sectilabrum Pfeiffer, 1. c. 109. n. 6. 



Hab. ? 



§§ Peristome not thickened near the penultimate whorl. 



4. Farcimen tortum. 



Turbo tortus Wood's Cat. Supp. t. 6. f. 32. 



Cyclost. tortum Gray in Wood's Cat. Supp. ; Sow. Thes. Conch, i. 



151. n. 169. t. 28. f. 181, 182.; Pfeiffer, Kust. Chemn. Conch. 



Cab. I 19. t. 17. f.22, 23. 

 Cyclost. torta Lamck. An. s. Vert. 2nd ed. viii. 372. n. 42. 

 Cyclost. bicolor Gould. 



Cyclost. idolium ? 



Megalomost. tortum Pfeiffer, 1. c. 109. n. 7. 



a — d. Cuba. 

 e. ? 



Yar. 1. 



Cyclost. ventricosum UOrb.; Sow. Thes. Conch, i. 151. n. 170. 



t.28. f. 183, 184.; Pfeiffer, Kuster, Chemn. Conch. Cab. i. 19, 



1. 17. f.20, 21. 

 Megalomast. ventricosum Pfeiffer, 1 c. 109. n. 10. 



/. Cuba. 



Var. 2. 

 Cyclost. auriculatum UOrb. in Sow. Thes. Conch, i. 151. n. 171. 



