92 BERENICEA. 



Great Oolite : Hampton, near Bath ; Stanton ; Kichmond boring ; Kirtlington 



(fide Phillips). 

 Fuller's Earth : Wiltshire. 

 Inferior Oolite : Cotteswolds. 

 Lias spinatus beds : Northampton. 



FOREIGN : 



Corubrash : Vogesheim, Baden (fide Schlippe). 

 Oxf ordian : Meuse (fide Buvignier) . 

 Bathonian Hauptrogestein : Merdingen, Baden, and Buchsweiler, Elsass (fide 



Schlippe) . 



Zone of Parldnsoniaferruginea : Neiderweiler, Baden (fide Schlippe) . 

 Marnes Bradfordiennes : Meuse (fide Buvignier). 

 Calcaire gris marueux: Aubenton, Eparcy (fide Archiac). 

 Calcaire oolithe miliare : Les Vallees (fide Archiac). 

 Calcaire a polypiers : Ranville ; Caen; Luc; Gueret (fide Haime). 

 Bajocian Zone of Cosmoceras subfurcatum : Longwy ; Moselle (fide Terquem). 

 Zone of Sonninia sowerbyi : Gingen, Wiirtemberg ; Flace, near 

 Ma9on ; Cheveuges, Ardennes (fide Ferry and Waagen) ; Ars, 

 Lothingen (fide Branco) ; Plappeville-les-Metz (fide Friren). 

 Calcaire a Collyrites ringens: Pouilly, near Mac,on (fide Ferry). 

 Calcaire a Terebratula, phillipsi : Tramayes, near Ma9on (fide Ferry) . 



Description of Figures. PI. IV. Fig. 4. Bradford Clay : Box 

 Tunnel, Wilts. Encrusting Terebratula maxillata, J. de C. Sow. 

 Part of zoariuin, X 13 dia. B. 4251. PI. II. Fig. 6. A young 

 zoarium (the Diadopora spatiosa, Walford). Cornbrash : Rush- 

 den. Encrusting Terebratula intermedia, J. de C. Sow. X 12 dia. 

 B. 4846. 



Affinities. This is the best known and commonest of the 

 British Jurassic Bryozoa; and it is surprising, considering the 

 length of the list of references, how simple the synonymy is. The 

 only important difference of opinion is whether B. verrucosa 

 (M. Edw.) is a distinct species or a young form. Milne Edwards 

 figured the two forms, and these appear very distinct. Haime 

 gave a good illustration of a zoarium, which he identified as a 

 young B. diluviana, and which he regarded as the same as, Milne 

 Edwards' B. verrucosa. I feel no doubt that Haime's figure was 

 that of a young diluvtana, but cannot accept it as B. verrucosa. 

 The species appear to me to be separated by several well-defined 

 differences. B. verrucosa has higher peristomes, and the zocecia 

 are shorter and more crowded ; the zoarium, moreover, is discoid, 

 whereas in B. diluviana it occurs as flat sheets, while the young 

 forms are flabellate, as is shown in Haime's figure (op. cit. pi. vii. 

 fig. 2c). 



