208 PARTULA, MOOREA. 



shorter. Columella obliquely subplicate above. Aperture 

 slightly oblique, oblong-oval; peristome thin, white, broadly 

 expanded throughout, the right margin spreading. Length 

 18, diam. 8, aperture with peristome 10 x G 1 /^ mm. Mar- 

 quesas Is. (Cuming coll.)." (Pfr.). 



Partula spadicea REEVE, Conch. Icon, vi, pi. 4, f. 24 (May r 

 1850). PFR., Monogr. iii, 451; Conehyl. Cab. p. 273, pi. 64, 

 f. 31, 32. Cf. GARRETT, Journ. A. N. S. Phila. ix, 1884, foot 

 of p. 73. 



An example of P. spadicea received from Mr. Cuming in 

 1862 is smaller than Reeve's figure, but resembles it in other- 

 wise. Though labeled "Marquesas" it is apparently a form 

 of P. elongata Pease, or very closely related to that species. 

 Dr. Hartman has referred spadicea to P. tceniata; and the 

 figure certainly has a close resemblance to P. simulans Pse., a 

 form of t&niata. 



P. simulans Pease, based on shells which are "plain red- 

 dish-brown yellowish or horn-color " or with "three inter- 

 rupted transverse bands " belongs apparently to tceniata. 

 PL 28, fig. 14 represents the cotype originally supplied by 

 Pease for pi. 1, fig. 11 of the Am. Journ. Conch. It is not 

 fully mature, and is corneous with indistinct brown streaks. 

 It is this 'form which seems to be identical with P. spadicea 

 Rve. PL 29, figs. 8, 12 are uniform white and brown-banded 

 examples also supplied by Pease at the time of original pub- 

 lication. The banded examples have two submedian and one 

 umbilical band, on a corneous-whitish ground. Some of 

 these shells scarcely differ from P. t. nucleola. 



P. striolata Pease, seems to be identical with t&niata ex- 

 cept in coloration ; it is dull tawny-brown with a few whitish 

 oblique streaks. The columellar tubercle is very weak, not 

 prominent as in nucleola. Fig. 8, pi. 27, is draw!n from a 

 cotype received from Pease. 



Whitish-corneous, solid shells, striped closely with brown 

 or chestnut, chiefly on the last whorl (pi. 28, fig. 7) have been 

 distributed by Garrett as striolata. They are probably closer 

 to the following form and to nucleola. 



