66 PROCEEDINGS OF THE MALACOLOGICAL SOCIETY. 



DESCRIPTIONS OF NEW SPECIES OF LAND-SHELLS FEOM 

 CENTRAL AND SOUTH AMERICA. 



By S. I. Da Costa. 



Read 12th January, 1900. 



PLATE VII. 



1. Streptostyltjs flavescens, n.sp. PI. VII, Fig. 1. 



Testa ovato-conica, tenuiuscula, flavescens; anfractus 7, subplano- 

 convexi, ad suturas marginati, glabri, nitidi ; columella brevis, arcuata, 

 et contorta ; apertura oblonga, longitudinis totius \ sequans. Long. 22, 

 diam. 11 mm. ; apertura long. 11, lat. 4*5 mm. 



Hah. — Chiriqui, Panama. 



It would appear that this shell is rightly placed in the genus 

 Streptostylus, seeing that it has a twisted columella, and is not 

 truncated as in Glandina. 



2. Glandina Chiriquiensis, n.sp. PI. VII, Fig. 2. 



Testa subf usiformi - oblonga, pelucido - cornea, vel albida ; spira 

 subobtusa, ad suturas impressa et marginata ; anfractus 5, rotundati, 

 politi, longitudinaliter fortiter striati, sub lente transversim striati ; 

 columella contorta, abrupte truncata, albida ; apertura mediocris, 

 labro ad marginem albo. Long. 19*5, diam. 9 mm.; apertura long. 9, 

 lat. 4*5 mm. 



Hub. — Chiriqui, Panama. 



This species bears a strong resemblance to G. Underwoodi , Fulton, 

 from Cartago, Costa Rica, but differs from it in having a more 

 attenuated spire. The colour is generally much paler, in fact 

 occasionally it is nearly white, while the columella and peristome are 

 always white. 



3. Glandina floccata, n.sp. PI. VII, Fig. 3. 



Testa fusiformis, spira elongata, tenuis, ventricosa, pellucido - 

 fuscescens, strigis castaneis remotis picta, maculis subobscuris albidis 

 sparsim floccata ; anfractus 8, longitudinaliter creberrime plicato - 

 striati, ad suturas subtiliter et creberrime crenulati; columella arcuata, 

 conspicue truncata ; apertura sub-ampla, fuscescente alba. Long. 89, 

 diam. 35 mm.; apertura long 46, lat. 18 mm. 



Hah. — La Armenia, near Bogota, U.S. of Colombia. 



This fine species bears a strong resemblance to G. striata, Mull. ; the 

 last whorl, however, is rather more ventricose, and exhibits a feature 

 never found in that species, viz., the presence of several white flecks 

 scattered irregularly over the body-whorl ; the only other instance of 

 similar spotting maybe observed in examples of G. Vanuxemenm, Lea, 

 from Mexico. 



