﻿NO. 14 LANDSHELLS COLLECTED IN PERU IN I9II DALL 3 



DRYMiEUS L0NGINQUU3 Morelet 



Bulimus longinquus Morelet, Ser. Conchyl., vol. 3, p. 195, pi. 11, f. 2; April 



1863. 

 Drymceus longinquus Pilsbry, Man. Conch., vol. 11, p. 293, pi. 50, f. 93, 94, 



1898. 

 ?Bulimus amcenus Bonnet, Rev. and Mag. de Zool. 1864, p. 70, pi. 6, f. 2; 



not of Pfeiffer, 1847. 



Between Ollantaytambo and Maras, Eastern Peru, at a height of 

 10,000 to 11,000 feet. U. S. N. Mus. 250244. This species and that 

 of *Bonnet are so similar that it seems possible that they are identical, 

 and that Bonnet's locality questioned by Pilsbry is right after all. 

 The D. corumbaensis Pilsbry, from Eastern Brazil is probably 

 distinct. 



DRYMiEUS PCECILUS Orbigny 



Helix (Cochlogena) pcecila Orb., Guerin, Mag. de Zool., 1835, p. 11. 



Bulimus pcecilus Orb., Voy. Am. Mer., p. 268, pi. 31, f. 1-10, 1837. 



Bulimus pictus Bonnet, Mag. de Zool. (2) vol. 16, 1864, p. 69, pi. 5, f. 4-6; 



pi. 6, f. 1. 

 Bulimus (Mesembrinus) pcecilus Lubomirski, Proc. Zool. Soc. Lond. for 



1879, p. 725 (Chota, Peru). 



Eastern Peru, from 3500 to 11,000 feet elevation. 



This form is one of the most puzzling and apparently variable that 

 I know of, but the large series collected by the Yale Expedition per- 

 mits one to come to some conclusions. The possession of specimens 

 of Orbigny's species obtained from him by Dr. Isaac Lea has been 

 of material assistance. I feel some doubt as to the identity of the 

 specimens referred to by Doctor Pilsbry as coming from Matto 

 Grosse, Brazil, with the Yale Peruvian form, and it is possible we 

 have to do with several distinct species which pass through an anal- 

 ogous series of color variations. 



Orbigny's variety major has a nearly black apex, which is not 

 found in his variety minor (so far as our specimens indicate) nor in 

 any of the specimens collected by the Yale Expedition. The speci- 

 mens noted by Lubomirsky from Chota, Peru, also did not possess 

 this feature. 



Orbigny's specimens of both varieties have an imperforate umbili- 

 cus ; variety major has a wide reflection of the pillar lip, with a space 

 behind it, but no perforation, his variety minor lacks even this, there 

 being only a very minute chink and narrow reflection. Beside Or- 

 bigny's specimens we have others from Venezuela taken in the Sierra 

 Madre Mountains at an altitude of 6000 feet, and some from Cor- 

 umba, Brazil, all of the variety minor. 



