MANUAL OF CONCHOLOGY 



Subfamily GASTROCOPTIN^ (continued). 



Genus CHONDEINA Reichenbach. 



Pupa, in part, DRAPARNAUD 1805, and of most subsequent 

 authors ; not of Bolten, 1798. Chondrus CUVIER, 1817, in part. 

 Cochlodonta FERUSSAC, 1821, in part. 



Torquilla STUDER, Kurzes Verzeich., etc., 1820, p. 89. VON 

 MARTENS, Die Heliceen, 1860, p. 287, type Pupa avenacea 

 Brug. Not Torquilla Brisson, 1760 (Aves). 



Chondrina REICHENBACH, Allgemeine Taschenbibliothek der 

 Naturwissenschaften. 5ter Theil. Zoologie oder Natur- 

 geschichte Thierreichs, i, 1828, p. 93, as substitute for Chon- 

 drus Cuv. ; ii, 1836, p. 152, for H. avenacea. 



Modicella H. and A. ADAMS, Genera Rec. Moll., ii, 1855, p. 

 169. BOETTGER, Jahrb. Nassau. Ver. Naturk., xlii, 1889, p. 

 249. WESTERLUND, Fauna Europaea Moll. Extramar. Prodr., 

 ii, 1878, p. 178 ; Synopsis, 1897, p. 94. Cf. also CAZIOT, Bull. 

 Soc. Zool. France, vol. 33, 1908, p. 195. 



Alloglossa LINDSTROEM, Om Gotlands Nutida Mollusker, 

 1868, p. 18; monotype A. a-venacea (Brug.). 



The shell is rimate, cylindric-conic or conic, brown (except 

 the group of C. similis, which have the shell opaque-whitish), 

 of 4% to 10 whorls. Aperture with teeth arranged as in 

 Abida, but often small, reduced in number or wanting; palatal 

 plicae not entering deeply and not enlarged to form an internal 

 barrier. Peristome somewhat expanded. 



Radula having the central and lateral teeth narrow, uni- 

 cuspid, the cusp long and curved in profile; marginals with 

 several cusps. 



Type C. avenacea (Brug.). Distribution, southern Europe 

 from Portugal to the Caucasus, north to Gotland; North 

 Africa. 



