78 TERRESTRIAL MOLLUSCA INHABITING SOCIETY ISLANDS. 
In shape they vary from abbreviate-ovate to oblong-ovate, not solid, roughly 
striated, spire usually half the length of the shell, sometimes shorter, and the base 
more or less compressly umbilicated. The aperture is rather large, suboval, edentate, 
and the columella is depressed, nof nodulous. Sometimes the front of the body-whorl 
is faintly angulated. The outer lip is rather thin, moderately expanded, slanting, 
concave, more or less stained with purple-brown, sometimes dull whitish or tawny, 
and the inner margin, which is not very heavily labiated, is in adults slightly sinuous 
above. , 
The color varies from light chestnut-brown to dark chestnut, sometimes fulvous. 
Examples with a more or less broad, median, yellowish corneous band are not infre- 
quent in both the Vaiau and Hapai shells. 
The following two varieties oceur in the typical lugubris only :— 
Uniform whitish horn-color, with pure white lip. Rather rare. 
Yellowish horn-color, with a median, narrow, reddish chestnut band. Rare. 
My largest Vaiau specimens are 204 mill. long, and 11 mill. in diameter. The 
smallest adult from Hapai is 16 by 8 mill. 
I have found hybrids between lugubris and imperforata, the latter a strictly 
arboreal species. 
Dr. Hartman, overlooking the fact that /uqubris, ovalis, protea and fusca inhabit 
widely separated valleys, has suggested that the three former may be the juvenile and 
adolescent forms of the adult fusca. The habitats of the two former species are about 
two miles apart, and five miles south of the location of fusca. P. protea, which = 
fusca, is confined to the opposite side of the island, and is separated from the latter by 
an almost inaccessible mountain. 
I cannot conceive how Carpenter could have referred Pease’s ovalis to Pfeiffer’s denti- 
Jera, a shell of an entirely different type. He also says, in a foot-note to the former 
author’s diagnosis of lugubris: ‘This species is regarded by Mr. Cuming as probably 
a variety of P. pacifica, Pfr.,” which latter is by Dr. Hartman referred to P. Otaheitana. 
P. varia, Broderip. 
Partula varia, Broderip, Proc. Zool. Soe., 1832, p. 125. Miller, Syn., p.33. Reeve, Conch. 
Syst., ii, Pl. CLXXV, figs. 5, 6; Conch. Icon., Pl. III, figs. 17 a,b,c. Pfeiffer, Mon. Hel., 
iii, p. 448. Pease, Proc. Zool. Soc., 1871, p. 473, et var. glutinosa, pulchra, simplex. Paetel, 
Cat. Conch., p. 104. Schmeltz, Cat. Mus. Godeff, v, p. 92. (Matata) Hartman, Cat. Part., 
p- 14; Obs. Gen. Part., Bul. Mus. Com. Zool., ix, pp. 189, 191 (excl. strigata). 
Bulimus varius, Pfeiffer, Symb., i, p. 86; ii, p. 124. 
Bulimus roseus, var., Pfeiffer, Mon. Hel., ii, p. 70. 
Partula glutinosa, Pfeiffer, Proc. Zool. Soc., 1852, p. 85 ; Mon. Hel., iii, p. 448. Paetel, Cat. 
Conch., p. 104. 
Partula mucida, Pfeiffer, Proc. Zool. Soc., 1855, p. 98; Mon. Hel., iv, p. 513. 
Partula pulchra, Pease, MS. Col. Pease, 1863. Schmeltz, Cat. Mus. Godeff., v, p. 92. 
Partula Huaheinensis, Garrett, MS. 
