1913.] NATURAL SCIENCES OF PHILADELPHIA. 639 



Pilsbry and D. hidalgoi Da Costa are closely related to suprapunc- 

 tatus in color pattern, but the former is a much more slender shell 

 and the latter is larger, umbilicate, and with a deep violet aperture. 

 A considerable number of dead and more or less charred and broken 

 specimens were taken at Camp 39, M. & M. R. R. 

 Drymaeus sp. undet. 



A single young specimen was taken near the Guajara-Assii Falls 

 and two half-grown specimens taken at the Serra do Erere were sent 

 from the Goeldi Museum. All have t3^pical apical Dnjmceus sculp- 

 ture and, as they do not fall into any of the species here described, 

 they are too young to diagnose with certainty. 



Subfamily ORTHALICINiE. 



Genus OXYSTYLA Schhiter. 

 Oxystyla pulchella (Spix). 



Achatina pulchella Spix, Testae. Brasil., pi. 9, fig. 2. 



Oxystyla ptdchella (Spix), Pilsbrv, Man. Conch. (2). XII, p. 13.5, pi. 28, figs. 

 27-29. 



The typical form was rather rare, but a few specimens were taken 

 with the following variety at Ceara-Mirim and one specimen was 

 taken at Paparj'; two specimens taken at Para were sent from the 

 Goeldi Museum. 

 Oxystyla pulchella prototypus Pilsbry. 



Man. Conch. (2), XII, p. 137, pi. 28, figs. 32-37. 



A single immature specimen was taken near Baturite, on the Ceard 

 & Baturite R. R., one hundred kilometers from Ceara; half a dozen 

 dead specimens at Baixa Verde, and several thousand at Ceara- 

 Mirim, where the}" were aestivating, the mature specimens on the 

 trunks and lower branches of various trees, the immature specimens 

 packed away very closely in knot holes and crevices between the 

 branches of the same trees. As Dr. Pilsbry remarks. I.e., "This is 

 an earlier, less differentiated form of the species, of which pulchella 

 is an extreme and more local development. It is more widely 

 distributed than the typical form, occupying the northwestern and 

 southern peripheral portions of the range of the species." To this 

 I can now add the northeastern portion of the range of the species. He 

 says further, "The largest specimen of prototypus before me measures 

 45| mill, long, with 6| whorls." The largest specimen taken by the 

 Stanford Expedition measures alt. 55, diam. 36, longest axis of the 

 aperture 34 mm., being excess of all measurements given by him 

 for either the type or the variety. Our specimens are all lighter in 



