HAAS: ABIDA AND CHONDRINA. 315 



character of his calpica, is incorrect. Three out of ten speci- 

 mens received from his own hand show a distinct angular 

 lamella, and in some of the remaining examples it is at least 

 indicated. 



The general form of the shell runs from turreted fusiform 

 to turreted ovate, and in the first of these aspects reminds one 

 of the proportions given by Kobelt for his tingitana from 

 Tetuan. This latter form agrees also otherwise with calpica 

 in the tooth arrangement from 1-2-3 to 2-2-3, and by the 

 strong, remote and irregularly standing ribbing of the sur- 

 face, so that I have to consider both as one and the same 

 species. Naturally Kobelt 's var. algesircc of tingitana will 

 pass into the synonymy of calpica. I have been able to com- 

 pare 18 cotypes of this, which show that the dentition ascribed 

 to it by Kobelt is not at all constant. Instead of 2 palatal 

 folds said to be characteristic of it, 12 specimens have 3. In 

 this form also, the angular lamella is not always absent; 

 nearly half of the specimens I examined show a distinct one. 



A cotype agreeing with Kobelt 's description of his var. 

 algesircc is illustrated, pi. 24, fig. 11. Length 7.5, diam. 2.7 

 mm.; 8% whorls. 



Pupa gratiosa Westerlund, supplied with 1-2-4 teeth, may 

 turn out to be a form of this species, but at present this dis- 

 position of it is conjectural. 



[Two specimens of C. calpica from Tetuan are figured (pi. 

 24, figs. 12, 13) from a lot of four in coll. Bryant Walker. 

 Three of them have two palatal folds as in fig. 13, correspond- 

 ing to var. algesircc Kob. ; the fourth having a basal fold in 

 addition, fig. 12. Angular lamella is distinct to vestigeal. 

 Both are stouter in figure than the cotype of algesirce figured, 

 measuring 7 to 7.3 mm. long, 3 wide; 7^ whorls.] 



