TORN ATELLOIDES . 191 



ulate, the last subangular ; aperture semilunar, narrow ; colu- 

 mella biplicate, the superior fold obsoletely lamelliform, the 

 inferior arcuate, lamellose; lip thin, acute. Length 6, width 

 3V4 mm. Island of Juan Fernandez. Found by Mr. Cuming 

 on dried herbage" (Petit). 



Position uncertain. TORN ATELLOIDES Pfr. 



Tornatelloides PFEIFFER, Monographia Heliceorum Viven- 

 tiuiu, viii, p. 299, for F. achatinoides, fraseri, microxia, dio- 

 donta, hierosolymarum^ rothi, moussoniana, unidentata, ovuli- 

 formis (1877). PILSBRY, Man. Conch., xix, p. 285 (type acha- 

 tinoides). Tornatellinoides PFR., Nomenclator Hel. Viv., 

 1878, p. 338, for the same species, except ovuliformis. 

 TRYON, Struct, and Syst. Conch., iii, 1884, p. 62 (for C. acha- 

 tinoides Pfr.). 



This group was introduced by Pfeiffer for species of Ferus- 

 sac'tii; Calaxis, and one species, T. achatinoides, said to be 

 f rom the Gambier Islands, known to us only by the original 

 account, translated below. In 1878 Pfeiffer altered the spell- 

 ing of the name, and Tryon (1884) followed him, mentioning 

 T. achatinoides as an example of the group. It may turn out 

 to be a Fernssacia from northern Africa, the locality assigned 

 resting only upon the perilous authority of a Cumingian label. 



T. ACHATINOIDES Pfeiffer. 



Shell oblong, subcylindric, rather solid, smooth, pale-cor- 

 neous spire long, tapering above, rather acute, suture sub- 

 marginate. Whorls 7, rather flat, the last two-fifths the total 

 length. Parietal lamella small, deeply placed. Columella bi- 

 tuberculate, subtruiicate. Aperture subvertical, rhombic- 

 semioval ; peristome simple, obtuse. Length 12, diam. 4 mm., 

 aperture 5 mm. long, 2% wide in the middle (Pfr.). 



Gambier Islands (Cuming). 



Tornatellina achatinoides Pfr., P. Z. S., for 1852, p. 68 

 (1854) ; Monogr. Hel. Viv., iii, p. 525 (May, 1853). ITorna- 

 tellina . . . REEVE, Conch. Icon., v, Achatina, pi. 19, f. 102 

 (June, 1849). Cionella (Tornatellinoides) achatinoides 

 Nomencl. Hel. Viv., 1878, p. 339. 



