SPIROPOEA. 153 



FOREIGN : 



Bathonian: Eanville ; Luc; Lebisey ; Langrune ; Marquise, near 



Boulogne. 

 Bajocian : Gorze, Plappeville, and St. Quentin, near Metz ; St. Floxel, 



near Bayeux. 



Calcaire a entroques : Ma9on (fide Ferry). 

 Zone of Sonninia sowerbyi : Gingen, Wiirtemberg ; Jun- 

 gingen, Hohenzollern. 



Description of Figure. PL VIII. Fig. 6. Part of terminal 

 branches, x!7dia. Eorest Marble : Wiltshire. Cunnington Coll. 

 24770. 



Affinities. This species differs from 8. elegans, Lamx., and 

 S. annulosa, Mich., by having fewer zocecia in the branches, 

 and by having the peristomes arranged irregularly or obliquely, 

 and not in horizontal rows. I include Michelin's S. caspitosa 

 here, as specimen 60231 shows both ,the type of that form and 

 the normal, regular S. lajocensis (Defr.) ; but I exclude Haime's 

 S. ccespitosa, as in that the branches are stouter and contain more 

 zooecia, and as the peristomes are on the type of S. annulosa, 

 Mich., of which I regard it as a synonym. The S. bajocensis is an 

 eroded form. 



LIST OF SPECIMENS. 



24770. Forest Marble. Wiltshire. Cunnington Coll. 



60231. Bathonian Calcaire a polypiers. Ranville. Tesson Coll. Illustrates 



the normal form and that of S. ccespitosa, Mich. 



60232. Bathonian Calcaire a polypiers. Ranville. Tesson Coll. 

 26243, B. 4564. Bathonian Calcaire a polypiers. Ranville. Tesson Coll. 



5. Spiropora richmondiensis (Vine), 1884. 



SYNONYMY : 

 Entalophora richmondiensis, Vine, 1884, Polyz. Richmond boring : Quart. Journ. 



Geol Soe. vol. xl. p. 791, fig. 3. 

 ,, var., Walford, 1889, Bry. Shipton, pt. i. : ibid. vol. xlv. 



p. 571. 

 Spiropora ,, Gregory, 1896, Rev. pt. v. : Ann. Mag. Nat. Hist. 



ser. 6, vol. xvii. p. 198. 

 Terebellaria? increscens, Vine, 1884, op. cit. p. 793, fig. 4. 



DIAGNOSIS : 

 Zoarium of thin, bifurcating stems, from 1 to 2 mm. in diameter. 



