The Nautilus. 



Vol. XV. APRIL, 1902. No. 12. 



NEW LAND SHELLS FROM THE SANTA MART A MOUNTAINS, COLOMBIA. 



BY H. A. PILSBRY AND G. H. CI.APP. 



The species described below were collected by Mr. and Mrs. Her- 

 bert II. Smith, in the course of their recent collecting tour in the 

 Santa Marta region.* The country explored proved to be singularly 

 unproductive in land mollusks, both species and individuals being, 

 with the exception of a few forms, very scarce. However, the pro- 

 portion of new forms was high, ami indicates considerable local spe- 

 cialization, as would be expected from the topography of that portion 

 of Colombia. 



Glandina callista n. sp. Pi. vii, fig. 7. 



Shell fusiform, very thin, pale brownish-yellow with a few indis- 

 tinct darker streaks, more numerous on the spire, and encircled by 

 numerous narrow, inconspicuous buff spiral lines between the periph- 

 ery and suture and on the spire. Surface but slightly glossy, sculp- 

 tural with fine, somewhat irregular strife, and weakly scored by fine, 

 close spiral stria?, better developed below. Suture distinctly mar- 

 gined with a row of small bead-like folds, each formed usually by the 

 coalescence of two, or the knob-like enlargement of one of the striae. 

 Spire acuminate. Whorls nearly 7, but slightly convex, the last 

 more inflated, tapering below. Anerture slightly oblique, four- 



*The BuUmulldx collected have been noticed in the current volume of the 

 Manual of Conchology. two being there described as new. Two other species, 

 Pleurodonte clappi and Nenia smilhse, have already been described and figured 

 in this journal. 



