435 



Three of the specimens are quite alike, differing only in size, on account of age, so I 

 have describecl them as the type; the fourth is much more developed in sculpture, so much 

 that I was in doubt if it ought not to be separated, the spirals are stronger, there is a spiral 

 in the excavation, on the contrary the last whorl has at all only 12 spirals, besides that below 

 the suture, which is weaker, and I find very fine spirals in the interstices, the last rib before 

 the peristome is strongly developed; as it is however not impossible that the other specimens 

 are not quite developed, I think the other differences may be individual ; unfortunately the 

 nucleus of the fine specimen is worn, the outer layer being lost, so I could not make out, if 

 it has been identical. 



Cithara Schumacher. 



1 . Cithara uiarginelloides Reeve. 



REEVE. Proc. Zool. Soc. Lond. 1846, p. 60. 



Conch. Ie. Vol. III, Mangelia, fig. 6. 



Tryon. Man. of Conch. Vol. VI, p. 261, PI. 24, fig. 22. 



Stat. 323. Sangkapura-roads, Bawean-island. 12 M. Mud. 1 Spec. 



Tryon unites C. columbelloides Reeve with this species, but Boettger (Nachrichtsbl. der 

 Deutschen Mal. Gesellsch. 1895, p. 19) has clearly pointed out the differences between the 

 two species. 



2. Cithara fusiformis Reeve. 



Reeve. Proc. Zool. Soc. Lond. 1846, p. 61. 



Conch. Ie. Vol. III, Mangelia, fig. 19. 



Tryon. Man. of Conch. Vol. VI, p. 268, PI. 23, fig. 2. 



Stat. 299. Buka- or Cyrus-bay, South coast of Rotti-island. 34 M. Mud, coral and Litho- 

 thamnion. 1 Spec. 



The spire of the only specimen is broken, so the shell has only 4 whorls and the iden- 

 tification is somewhat doubtful. 



3. Cithara stromboides Reeve. 



Reeve. Proc. Zool. Soc. Lond. 1846, p. 63. 



Conch. Ie. Vol. III, Mangelia, fig. 33. 



Tryon. Man. of Conch. Vol. VI, p. 264, PI. 23, fig. 1. 



Stat. 37. Sailus ketjil, Paternoster-islands. 27 M. and less. Coral and coralsand. 1 Spec. 



4. Cithara lyrica Reeve. 



Reeve. Proc. Zool. Soc. Lond. 1846, p. 61. 



Conch. Ie. Vol. III, Mangelia, fig. 20. 



Tryon. Man. of Conch. Vol. VI, p. 268, PI. 24, fig. 21. 

 Smith. Zool. Coll. "Alert", p. 41, PI. 4, fig. H [cylindrica var.). 



71 



