298 HAAS: ABIDA AND CHONDRENA. 



C. avenacea farinesi is relatively rare in the Aragonian 

 Pyrenees, though, it is known from there and from the moun- 

 tains of Navarra as far as the valley of the Rio Salazar. 

 Eastward towards Catalonia, it increases gradually in abun- 

 dance, and chiefly in the combinations Nos. 19 and 20. In 

 the valleys of the two Nogueras the combination 24 is added, 

 while in the Segre valley, nearly all combinations between 1 

 and 24 are to be found. In the district of the Llobregat, in- 

 cluding in the south the Montserrat district and the plain of 

 Barcelona, 23 of the 28 tooth-combinations occur. Further 

 east, in places in Province G-erona, combination 1 predomi- 

 nates ; combination 25 is also present in a few places, but the 

 transitions between them are always incomplete. 



On the French side of the Pyrenees, C. a. farinesi is gener- 

 ally reported, but the forms deficient in teeth do not appear 

 to extend there. With this the whole distribution of this local 

 race is specified. 



Chondrina avenacea pulchella (Bof.). PI. 27, fig. 6. 



Pupa pulchella Bofill, Bull. Soc. Mai. France, III, 1886, 

 p. 161.— Fagot, Cron. Cient. Barcelona, XI, 1888, p. 128.— 

 Bofill, Treb. Mus. Cienc. Nat. Barcelona, I, 1915, p. 49, pi. 

 6, fig. 9. — Chondrina pulchella Bof., Pilsbry, Manual, XXV, 

 p. 54. 



Pupa (Modicella) avenacea pulchella Bofill & Haas, Est. 

 II, p. 40, pi. 3, figs. 7-8; III, p. 44; IV, p. 124. 



Pupa penchinatiana (non Bourguignat) Bofill, Act. Mem. 

 I. Congr. Nat. Esp. Zaragoza, 1909, p. 200. 



? Pupa (Torquilla) pulchella var. manotiana Westerlund, 

 Nachr. Bl. D. Mai. Ges., 1894, p. 54. — Chondrina pulchella 

 var. manotiana Pilsbry, XXV, p. 55. 



Distinguished from C. avenacea farinesi by the altogether 

 more fusiform shape, that is, becoming smaller above and 

 below. 



Bofill 's type is an extremely small specimen, measuring: 

 length 4.5, diam. 1.5 mm. My examples vary between, length 

 4 to 7 mm., diam. 2 to 3 mm. The smallest specimens I found 

 high on Montsech on the Coll d 'Ares, at 1200 m. above the sea. 

 I doubt the correctness of Bofill 's statement that his type 

 measured only 1.5 mm. diameter, for I have never found one 



