54 TERRESTRIAL MOLLUSCA INHABITING SOCIETY ISLANDS. 
noti, and describes a new species under the name of H. Heynemanni, the commonest 
form inhabiting all the valleys near the principal harbors at Tahiti, and undoubtedly 
included among Gould’s varieties of bursatella. In the seventh volume he doubts 
H. coarctata and H. turricula being synonyms of ZH. streptaxon. 
Mr. Pease, in his list of Polynesian land shells (P. Z. S., 1871), refers H. courctata, 
H. excavata, H. streptaxon and H. turricula to the synonymy of H. bursatella, and adds 
H. cavernula to the synonymy of H. Jacquinoti, Pfr. Te also records H. Heynemanni, 
Pfr., and AH. Oceanica, Le Guill., as distinct species, unknown to him. He doubts 7. 
Jacquinoti, which Pfeiffer assigns to the Marquesas, being a Society Island species. I 
am inclined to believe it inhabits the Austrai Islands, and not Marquesas. 
L. BURSATELLA, Gould. 
Helix bursatella, Gould (part), Proc. Bost. Soc. Nat. Hist., 1846, p. 175; Expl. Ex. Shells, p. 
51 (part). Pfeiffer, Mon. Hel.,i, p. 185 (part) ; iii, p. 142 (as restricted). Chemnitz, ed. 2d, 
Pl. CXXYV, figs. 23-25. (Hndodonta) Albers, Die Hel., p. 189. Reeve, Conch. Icon., 
Pl. CXI, fig. 635. (Pitys) H. and A. Adams, Gen. Moll., ii, p. 113. (2ndodonta) Paetel, 
Cat. Conch., p. 91. ; 
Helix turricula, Hombron and Jacquinot, Voy. Pol. Sud, Mol., Pl. VI, figs. 21-24. 
Pitys bursatella, Pease (part), Proc. Zool. Soc., pp. 452, 475. Frauenfeld, Verh. Zool. Bot. 
Ges. Wien, 1869, p. 873. 
In 1861, 1 gathered numerous examples of this species at Tahiti, but, as previously 
mentioned, my specimens of Libera were more or less intermixed, so I cannot state the 
precise locality where I took the specimens. 
It may be distinguished by its semiglobose form, rather elevated dome-lke spire, 
crowded, slightly arcuate riblets, flattened and rather smooth base, and the absence of 
spiral strie. ‘There are six to seven internal lamine. 
Major diam. 7§ mill. 
L. coarcrata, Pfeiffer, Plate IT, fig. 10. 
Helix bursatella, Gould (part), Proc. Bost. Soc. Nat. Hist., 1846, p. 175; Expl. Ex. Shells, 
p. 51. 
Helix coarctata, Pfeiffer, Proc. Zool. Soc., 1849, p. 128; Zeit. Malak., 1849, p. 74. (/ndo- 
donta) Albers, Die Hel., p. 89. 
Helix cavernula, Hombron and Jacquinot, Voy. Pol. Sud, Moll., Pl. VI, figs. 33-36. Chem- 
nitz, ed. 2d., No. 781, Pl. CX XV, figs. 29-31. Pfeiffer, Mon. Hel., iii, p. 143. (Pitys) 
H. and A. Adams, Gen. Moll., ii, p. 1138. 
Helix streptaxon, Reeve, Conch. Icon., Pl. CXII, fig. 641. Pfeiffer, Mon. Hel., iv, p. 154. 
(Endodonta) Paetel, Cat. Conch., p. 95. 
Common and diffused throughout several valleys on the north and east side of 
Moorea. On the ground in forests. 
The spiral, raised strie will readily distinguish it from L. recedens and L. gregaria, 
inhabiting the same island. They vary some in the height of the spire, and some 
