1920.] NATURAL SCIENCES OF PHILADELPHIA. 5 



Guppya costaricana elatior n. subsp. Fig. 3. 



Brook near the Rio Reventazon, Juan Vinas, at 2500 ft. Type 

 No. 105276, A. N. S. P. 



The shell is smaller than costaricana but with nearly the same 

 number of whorls; more elevated, with the peripheral carina stronger; 

 outlines of the spire more concave. 



Alt. 4, diam. 4 mm.; 5^ whorls. 



Zonitoides hoSmanni (v. Martens). 



Bank of Rio Reventazon, Cachi. Mar. 10, 1910. 3300 ft. 



ACHATINID^. 

 Subulina octona (Bmg.) 



Near town of Turrialba, 2200 ft. 



Opeas beckianum (Pfr.) 



Banana River, 30 ft. Nov. 10, 1910. 



BULIMULID.E. 

 Oxystyla princeps (Brod.) 



Forest, Guacimo. 



Oxystyla ferussaci tricincta (v. Martens). 



Bonnefil Farm, Rio Surubres, 700 ft. 

 Drymaeus sulphureus (Pfr.) 



Near Guapiles, 980 ft.; Bonnefil Farm, Rio Surubres, 700 ft., on 

 HeUconia, Oct. 16-21, 1909; Reventazon valley near Juan Vinas, 

 2500 ft., in a Bromeliad. Also on the road to Rio Reventazon at 

 3000 ft. 



Calvert notes that the living animal, from the last locality, has 

 the foot greenish-blue with whitish edges, the tentacles greenish- 

 brown. Those from the first three localities have the rather short 

 form of var. citroneUus (Angas) ; the fourth is a longer shell. 



Dr]miaeus costaricensis (Pfr.) 



Juan Vinas, on a Bromeliad; also road to Rio Reventazon, 2500- 

 3000 ft.; Cachi, 3450 ft. 



A second lot from Cachi, on Solatium, consists partly of more 

 slender shells, in contour resembling D. attenuatus, but associated 

 with others of stouter contour, all having the coloration of costa- 

 ricensis. 



Drsrmaeus attenuatus pittieri (v. Martens). 



Road from Juan Vinas to Rio Reventazon, 3000 ft. One speci- 

 men with typical markings. There is another from Juan Vinas, 



