THEONOHm 131 



cases, to distinguish them from F. aiirantium. But if one of the masses be split vertically, 

 the peculiar arrangement of the bundles of tubes, closely resembling that of Tabipora 

 musica, will at once solve all doubts. In cases where the surface is less worn, the circular 

 eminences afford an obvious character. 



In speaking of Funyella multifiJa (p. 119), it is suggested that that species may 

 probably merely represent the young state of Fascicularia tubipora. This is a matter for 

 future determination, but the mere inspection of the figures will show sufficient ground 

 for the suspicion that they may stand in the relation suggested. 



2. F. AURANTICM, Milne-Edwards. PI. XXI, fig. 2. 



Cellularum fasciculis confertis, saepius irregulariter coalitis ; polyzoarii superficie 

 rugosa ; rugis anastomosantibus sinuosis, caucellatis ; interstitiis striatis. 



Tubes assembled into compound bundles, which anastomose irregularly with each 

 other, and project on the surface in elongated, tortuous, anastomosing ridges, upon which 

 the cells open ; intermediate surface striated. 



APSENDESIA CEREBEIFORMIS (?), Blainville, Man. d'Actin., p. 409; M. Edw. in Lamarck, 



'2cl ed., ii, p. 290 ; Michelin, Icon. Zoopb., p. 314, pi. Ixiv, 

 fig. 5. 



FASCICULARIA AURANTIUM, Milne Edwards, (M. S., 1830) ; Sir C. Lyell. Man. Eleni. 



Geol., 5th ed., p. 172, fig. 154 ; J. Morris. 



Habitat. C. Crag, S. Wood; J. S. Bowerbank ; Valduc (Bouches-du-Rhone), Done 

 (Maine-et-Loire), Michelin. 



ADDENDA AND CORRIGENDA. 



1. ESCHARA SOCIALIS (. SJ0.) PI. XXII, fig. 1. 



Polyzoario pedunculato, e centre disci orbicularis, incrustantis surgenti. Cellulis sub- 

 ovalibus seu hexagonis, immersis, insequalibus, sparse punctatis. Orificio orbiculari, 

 infra euiarginato. Aviculario parvo mandibula aciita ascendenti, ad nnum latus prope 

 orificium posito. 



