314 HAAS: ABIDA AND CHONDRINA. 



twin lamella alongside the angular, indicated in the table by 

 the formula 3-2-4. 



From the Sierra de las Dientes de la Vieja, near Granada 

 (Hidalgo leg.) there are before me 24 examples of a form 

 showing only the combination 2-1-2, and which agree with 

 dertosensis in everything except that they lack a spiral lamella. 

 Also one specimen collected by W. Kobelt in Ronda (Prov. 

 Malaga) is quite similar to typical dertosensis except in pos- 

 sessing no spiral lamella. It has 2-2-2 teeth. Whether the 

 forms from these two southern localities are referable to typi- 

 cal dertosensis I do not venture to decide. 



C. dertosensis in its typical development, that is, having a 

 spiral lamella, is up to the present time known only from the 

 mountain ranges along the lower course of the Ebro in Tarra- 

 gona Province, and also in Cuenca Province. Its occurrence 

 in the Provinces Castellon de la Plana, Valencia and Teruel 

 is to be expected. If the two forms from the region of Gra- 

 nada and of Rondo are considered to be dertosensis, then its 

 distribution will coincide with that of C. avenacea jumillensis, 

 including the whole of southeastern Spain. 



Chondrina calpica (West.). PI. 24, figs. 11, 12, 13. 



Pupa calpica Westerlund, Nachr. Bl. D. Mai. Ges., 1872, 

 p. 27 ; Malak. Bl., XXI, 1874, p. 58, pi. 2, f . 6-8.— Chondrina 

 calpica Pilsbry, Manual, XXV, p. 41, pi. 3, f. 10, 11. 



Pupa tingitana Kobelt, Jahrb. D. Mai. Ges., IX, 1882, p. 

 71. — Westerlund, Fauna, p. 103. — Chondrina calpica Pils- 

 bry, Manual, XXV, p. 41, pi. 3, fig. 9. 



Pupa tingitana var. algesirce Kobelt, Jahrb. D. Mai. Ges., 

 IX, 1882, p. 71. — Westerlund, Fauna, p. 103. — Chondrina 

 tingitana algesirce Pilsbry, Manual, XXV, p. 42. 



? Pupa gratiosa Westerlund, Ann. Mus. Acad. St. Peters- 

 burg, III, 1898, p. 167. — Chondrina gratiosa Pilsbry, XXV, 

 p. 37. 



Ten specimens of Westerlund 's Pupa calpica from Gibraltar 

 are before me, varying in dentition of the aperture as follows : 

 1-2-2 (4) ; 1-2-3 (3) ; 2-2-2 (2) ; 2-2-3 (1). From this it 

 appears that Westerlund 's diagnosis, in which he ascribes only 

 one parietal lamella, in the lack of an angular, as a constant 



