terrestrial mollusca inhabiting society islands. 07 
Raiatca, tlie home of P. imperforata and Juguhris. It is very abundant, lurkin*' 
cneatli dec a} ing vegetation and found associated with the typical form of P. higtihriH. 
It has not spread any to the northward, but to the southward it has migrated into 
two small ravines. 
It is shaped very much like Hebe, but is smaller, tbe lip less expanded and the 
body-whorl not so much inflated. The parietal tooth, which is not constant, is not so 
prominent as in that species. The color varies from pale horn-color to deep brown or 
reddisli brown, with or without a purple-black apex. The peristonre is more rounded, 
and not so pure a white as in Hebe. 
A variety with a median yellowish band is not uncommon, wbich Mr. Pease 
described as the type. Of the two flgures quoted in the synonymy and references, Mr. 
Reeve’s is the most characteristic ; that of Mr. Pease is too much elongated. 
P. EOSEA, Broderip. 
Partula rosiea, Broderip, Proc. Zool. Soc., 1832, p. 125. Muller, Syn., p. 32. Reeve, Conch. 
Sy.st., ii, PI. CLXXY, figs. 9, 10 ; Conch. Icon., PI. I, figs. 1 a, h, c. Jay, Cat. Shells, 
p. 57 (1832). Pfeiffer, Mon. Hel., ill, p. 448. Pease, Proc. Zool. Soc., 1871, p. 473. 
Paetel, Cat. Conch., p. 104. Schmeltz, Cat. Mus. Godeff., v, p. 92. (Matata) Hartman, 
Cat. Part., p. 14 (with woodcut); Obs. Gen. Part., Bui. Mus. Com. Zool., ix, pp. 186, 191 
(excl. simplaria). 
Partulus roseus, Beck, Ind. Moll., p. 57. 
Bulivius roseus, Pfeiffer, Mon. Hel., ii, p. 70, part. 
Partula purpurascens, Pfeiffer, Proc, Zool. Soc., 1856, p. 333 ; Mon. Hel., iv, p. 511. 
Partula cognata. Pease, MS. Coll. Pease, 1863. Schmeltz, Cat. Mus. Godeff., v, p. 92. 
Gloyne, Quar. .lour. Conch., i, p. 338. 
'I'he head()uarters of this beautiful and well-known arboreal species is in a large 
forest at tlie head of Hatvai bay on the west side of Huaheine. From this region, 
where tliey arc very numerous, they have spread over many parts of the island. They 
differ but little in shape in the difterent localities, except in I’aahiti on the north coast, 
where they are smaller, less angulated on the last whorl, and in the total absence of 
the uniform dark purple-brown and rose-colored varieties which are so common else- 
where. It is the P. cognata. Pease. The most numerous variety of the latter form 
is straw-yellow with the sutural line tinted with rose or purple -rose. A rose or purple- 
brown variety with a central yellow band is found in no other part of the island. 
P. ro^ea exhibits the following color- variations : 
Var. a. Uniform yellowish. Very numerous. 
Var. h. Uniform dark purple-brown. Common. = P. purpurascens. 
Var. c. Uniform rose or rose-red. Common. Type. 
Var. d. Yellowish, with the base and narrow sutural band purple-brown or rose- 
color. Common. „ . , 
Var. e. Rose or purple-brown, with the basal half of the body-whorl yellowish. 
Frequent in the metropolis, but very rare elsewhere. 
