98 



Vers et Zoophytes. 1872. — Gemmellaro sopra alcune 

 Faune Giuresi e Liasiche cli Sicilia. 1872. — Lea Recti- 

 fication of Conrad's Synopsis of the family of Naiades. New 

 ed. 1871. — Lambert Nouveau Guide du Geologue. 1873. — 

 Kleciak Catalogus marinorum molluscorum Dalraatiae 

 1873. — Morse On the early stages of Terebratulina sep- 

 tentrionalis. 1871. — Paetel Catalog der Conchylien-Sarn- 

 luna:. 1873. — Monterosato Notizie intorno ai Solarii del 

 Mediterraneo. 1873. — Stearns Conchological Memoranda. 

 X — XII. 1872. 1873. — Weinkauff Catalog der im euro- 

 päischen Faunengebiet lebenden Meeres-Conchylien. 1873. - 

 Aufsätze von Bland und Binney. — Transactions of the 

 royal society of arts and sciences of Mauritius. V. 1871. — 

 Bland On the physical geography of, and the distribution 

 of terrestrial Mollusca in the Bahama islands. 1873. -- A. 

 Manzoni II monte Titano i suoi fossili, etc. 1873. 



(Pfr.) 



Malakologische Studien, Kritiken 

 und Notizen. 



Von 



Carl Agardh Westerlund. 



(Fortsetzung.) 



X. 



Conspectus Specierum et Varietatum in Europa viventium generis 

 Planorbis Guett. 



Gen. Planorbis Guettard. 

 Testa dextrorsa, discoidea, spira depressa, anfr. Om- 

 nibus saepe utrinque conspicuis; apertura cordata, lunata 

 vel rotundata. 



I. Coretus Adans. (Spirodiscus Stein). Testa 

 magna, depressa, supra profunde umbilicata, 

 concava, subtus planulato-concava; anfr.- sat 



