ABT. 15 ISTEW AUSTKALIAN LAND SHELLS MARSHALL 7 



Stearns, who obtained them from Dr. J. C. Cox. These are labeled 

 " Northeast Australia." They are dark reddish chestnut, much 

 darker than the type. In one the light peripheral band is quite 

 marked ; in the other it is faint. Apparently the localities " Queens- 

 land" and "Northeast Australia" supplied by Jackson and Cox 

 would lie on the mainland, but it seems probable that these localities 

 being general would include islands in Torres Strait. Pfeiffer's type 

 locality " Nova HoUandia ? " would include both mainland and 

 islands. 



Cos and also Pilsbry saj^ "Islands of Torres Strait, Australia, 

 from Lizard Island to Stephens Island." Doctor Cox in describing 

 and figuring specimens from Lizard Island apparently did not deal 

 with Thersites semicastomea^ but with larger and differently colored 

 shells. The specimen figured by Cox on Plate 5, Figure 10,^ is not 

 T. semicastanea but rather hipartita minor Pilsbry. The specimen 

 figured on Plate 20, Figure 3,^ is T. seviicastanea seinicasteneci'. 



THERSITES (HADEA) SEMICASTANEA ALMA, new subspecies 



Plate 3, fig. 8 



Similar to Thersites {Hadra) semicastanea semicastanea^ but much 

 smaller, more fragile, slightly less depressed and with the peristome 

 thin and but slightly reflected. The body whorl does not descend 

 near the aperture. It has 5^/2 whorls. 



The type (Cat. No. 100034, U.S.N.M.) measures: Greater diameter, 

 25.5 mm.; lesser diameter, 22 mm.; height, 15 mm. It comes from 

 Cape York, Queensland, Australia, and was received from R. E. C. 

 Stearns, who obtained it from Legrand. 



THERSITES (HADRA) FUNICULATA PfeifEer 



1854. Helix funiculata Pfeiffee, Proc. Zool. Soc, p. 147. 



Shell umbilicated, depressed, thin, often rudely granulated, some- 

 what shining, reddish ; spire obtusely conic ; suture subcanaliculate ; 

 whorls 6, somewhat convex, slowly increasing; body whorl rounded, 

 a white band above the periphery and with a cord-like carina, de- 

 scending anteriorly ; base convex, umbilicus moderate, deep, aperture 

 oblique, subangularly lunate; peristome simple, margins scarcely 

 converging; above straight, a little reflected at the base, upper end 

 of columella dilated. 



Greater diameter, 29 mm.; lesser diameter, 24 mm.; height, 14 

 mm. 



Hahitat. — Torres Strait, Australia. 



This may be a subspecies of Thersites seinicasfunea Pfeiffer, but 

 the presence of a cordlike keel at the periphery makes it somewhat 

 doubtful. Unfortunately a definite locality was not cited. Torres 

 Strait includes a multitude of islands. 



s Monograpli of Australian Land Shells, 1868. 



