96 PROCEEDINGS OF THE ACADEMY OP 



Mclatoma Anthonyi, Reeve, Monog. sp. 12, Apr., 1861. 

 Gyrotoma Anthonyi, Reeve, Brot, List, p. 27. 



20. S. babylonicum, Lea. 



Schizostoma babylonicum, Lea, Philos. Proc, iv. p. 167, Aug., 1845. Philos. 



Trans, x. p. 68, t. 9, f. 54. 

 Gyrotoma babylonicum, Lea, Binney, Check List, No. 307. Chenu, Manuel de 



ConchyL i. f. 2021. Brot, List, p. 27. 

 ? Melatoma babylonicum, Lea, Reeve, Monog. sp. 6. 

 Schizostoma Spillmanii, Lea, Proc. Acad. Nat. Sci., p. 54, Feb., 1861. Jour. 



Acad. Nat. Sci., v. pt. 3, t. 35, f. 55. Obs. ix. p. 72. 



21. S. Buddii, Lea* 



Schizostoma Buddii, Lea, Philos. Proc. iv. p. 167, Aug., 1845. Philos. Trans. 



x. p. 68, t. 9, f. 53. 

 Gyrotoma Buddii, Lea, Binney, Check List, No. 308. Brot, List, p. 27. 

 Schizostoma funiculatum, Lea, Philos. Proc, iv. p. 167, Aug., 1845. Philos. 



Trans, x. p. 69, t. 9, f. 56. 

 Gyrotoma funiculata, Lea, Binney, Check List, No. 318. Brot, List, p. 27. 

 Mclatoma funiculatum, -\ Lea, of Reeve, Monog., sp. 5. 

 Melatoma pagoda, Lea, of Reeve, Monog., sp. 1, b. 



22. S. d e m i s s u m, % Anthony. 



Gyrotoma demissa, Anthony, Proc. Acad. Nat. Sci., p. 64, Feb., 1860. Bin- 

 ney, Check List, No. 316. Brot, List, p. 27. 



Melatoma demissum, Anthony, Reeve, Monog., sp. 9. 



Schizostoma Hartmanii, Lea, Proc. Acad. Nat. Sci., p. 187, May, 1860. Jour. 

 Acad. Nat. Sci., v. pt. 3, t. 35, f. 51. Obs. ix. p. 69. 



Gyrotoma Hartmanii, Lea, Binney, Check List, No. 322. Brot, List, p. 27. 



23. S. c o n s t r i c t u m, Lea. 



Schizostoma constrictum, Lea, Philos. Proc, iv. p. 167, Aug., 1845. Philos. 



Trans., x. p. 68, t. 9, f. 55. 

 Gyrotoma constricta, Lea, Binney, Check List, No. 302. Brot, List, p. 27. 

 Gyrotoma recta, Anthony, Proc. Acad. Nat. Sci., p. 64, Feb. 1860. Binney, 



Check List, No. 331. Brot, List, p. 27. 

 Melatoma rectum, Anthony, Reeve, Monog. sp. 10, not sp. .7, a. 



24. S. sale bro su m, || Anthony. 



Gyrotoma salebrosa, Anthony, Proc. Acad. Nat. Sci., p. 66, Feb., 1860. Bin- 

 ney, Check List, No. 333. 



Melatoma salebrosum, Anthony, Reeve, Monog. sp. 8 and 15. 



Gyrotoma robusta, Anthony, Proc. Acad. Nat. Sci., p. 67, Feb., 1860. Bin- 

 ney, Check List, No. 332. Brot, List, p. 28. 



Melatoma robustum, Anthony, Reeve, Monog. sp, 14, a, b. 



Melatoma rectum, Anthony, of Reeve, Monog. sp. 7, a. 



25. S. glan du la,^[ Leai 



Schizostoma glandula, Lea, Proc. Acad. Nat. Sci., p. 187, 1860. Jour. Acad. 



Nat. Sci., v. pt. 3, t. 35, f. 53, Mar., 1863. Obs. ix. p. 71. 

 Gyrotoma glandula, Lea, Binney, Check List, No. 319. Brot, List, p. 27. 



* Mr. Reeve's figure (3) of this speecies is a Goniobasis lata, Jay. 



fThis figure does not so well represent funiculatum as fig. 1, b, intended for & pagoda. 



% Mr. Lea, (Jour. Aca<i. Nat. Sci., v. pt. 3), makes this species to equal his S. constrictum. I do 

 not consider them the same; constrictum is longer and narrower. 



j} Mr. Reeve's figure 7, a, represents rather a smooth variety of salebrosum, Anth. 



D In a large number of specimens before me, the distinctive features of salebrosum and robustum 

 become so completely and insensibly merged together that I cannot separate them, and believe 

 them to be identical. 



fl Closely allied to S. incisum, but may be distinguished by being heavier, of different color, 

 higher spire, and more convex outline. 



[April, 



