4 PEOCEEDINGS OF THE NATIONAL MUSEUM vol. 72 



The suture marked by a faint band of chestnut below it. 

 The figured specimen, United States National Museum, Cat. 

 No. 100058 measures : Greater diameter, 64 mm. ; lesser diameter, 

 56 mm. ; height, 59 mm. It comes from northeast Australia and was 

 received from E. E. C. Stearns, who obtained it from Dr. J. C. Cox. 

 The collection contains also 15 other specimens, 5 of which are labeled 

 Cape York; 6 Australia; 1 northeast Australia; 1 north Australia; 

 1 Queensland ; and 1 Gulf of Carpentaria. Probably all these speci- 

 mens came from Queensland. Pilsbry cites the following localities: 

 Cape York, Cape Direction, Cape Grenville, Daintree River, and 

 Albany Island, northeast Australia. Albany Island is so close to the 

 mainland that it may be regarded as a part of it. All the localities 

 mentioned are in Queensland. 



Specimens at hand vary considerably in size and other features. 

 The specimen figured is the largest ; the smallest of all is a specimen 

 labeled Australia (Cat. No. 321077) which measures: Greater diam- 

 eter, 50 mm. ; lesser diameter, 40 mm. ; height, 36.5 mia. Four other 

 specimens, part of this same lot, are much smaller than the specimen 

 figured. One labeled Gulf of Carpentaria, North Australia (Cat. No. 

 333790, U.S.N.M.), received from Mr. Walton, measures: Greater 

 diameter, 51 m. ; lesser diameter, 43 mm. ; height, 41 mm. 



With more material available and with definite locality data, this 

 subspecies as now considered may have further subdivisions. 



THERSITES (HADEA) BIPARTITA MINOR Pilsbry 



1890. Euhadra (Hadra) Mpartita mmor Pilsbrt, Man. Concli., vol. 6, 

 p. 126, pi. 21, f. 44. 



Like typical Mpartita in all respects but size, which Pilsbry gives 

 as diameter, 31 mm.; altitude, 26 mm. No mention is made of its 

 distribution. 



THERSITES (HADRA) BIPARTITA UNICOLOR Cox 



1892. Chloritis (Hadra) Mpartita umcolor Cox, in Pilsbry's Man. Concli., 

 vol. 8, p. 276. 



Similar to the typical Mpartita in size, form, sculpture and thick- 

 ness, but of a nearly uniform yellowish color. All four of the speci- 

 mens in the Museum collection have the white or whitish band which, 

 in typical Mpartita^ marks the division between the yellowish color 

 of the spire and the chocolate color of the base. The distribution of 

 unicolor is apparently the same as that of typical Mpartita, and it 

 may be only a partially albinistic manifestation instead of a zoogeo- 

 graphic race. 



THERSITES (HADRA) LIZARDENSIS LIZARDENSIS, new subspecies 



Plate 2, fig. 7 



Shell globosely conical, rather elevated, moderately thick. 

 Whorls 61/2, slowly increasing in size, a little convex. Base convex; 



