572 ZOOPHYTES. 



ville instituted the genera Spinopora, Ceriopora, Heteropora, and 

 Pustulopora, from the remainder, placing, at the same time, some of 

 the species with the Alveolites of Lamarck. The genus Ceriopora, 

 as restricted, has the circular cells of a Millepora, and the coralla 

 consist of " concentric and enveloping" beds. The species referred 

 by Blainville to the genus, are all from the chalk. 



The genus Spinopora, of Blainville, comprises small glomerate spe- 

 cies, having a spino-tuberculous surface, and minute irregular pore- 

 like cells scattered over the intermediate spaces. The existence of 

 tubercles is hardly a character of generic importance. The species 

 reported to it are from the chalk. The genus Heteropora is referred 

 to under Heliopora, page 539. The Heteropora of Ehrenberg cor- 

 responds to the Madrepora of other authors. 



Ceriopora, Goldfuss, Petref., 32. Ceriopora, Blainv., Man., 413, pi. 70, fig. 



Chrysaora, Lamouroux, Exp. Meth., 83, 2; Goldf., 33, pi. 10, figs. 4, 6, 7. 



pi. 81, figs. 6, 7 ; Goldf., tab. 11, figs. , Lamarck, 2d ed., ii. 313. 



511. Spinopora, Blainv., Man., 415, pi. 70, fig. 



, Blainville, Man., 414. 3 ; Ceriopora mitra, Goldf., 39, pi. 30, 



, Lamk., 2d ed., ii. 315. fig. 13. 



NOTE. The genus Tiksia, of Lamouroux, is but imperfectly known ; it is supposed 

 to fall near the above. The small coralla are ramose, with the branches cylindrical 

 and verrucose, and having minute circular pore-like cells collected in polymorphous 

 groups, with the intermediate surface smooth. The only species described is a fossil 

 from near Caen. (Lamouroux, Exp., Meth., 42, tab. 74, figs. 5,6. Blainv., Man , 415, 

 pi. 63, fig. 5. Lamk., 2d ed., ii. 316.) Lamouroux's description of the genus will 

 apply nearly as well to his Theonea (q. v.) 



TEREBELLARIA. LAMOUROUX. 



Pumilce; ramosce, ramis elongate conicis, et spiraliter annulatis ; cellis 

 minutis ovalibus, subtriangulatis, in quincuncem dispositis. 



Quite small ; ramose ; branches oblong conical, and spirally annulate; 

 cells minute, oval, orsubtriangular, and arranged in quincunx order. 



The branches have a depression running spirally around from the 

 base to the summit. This genus, established by Lamouroux, is ar- 

 ranged near the "Alveolites," by Blainville. He states that the cells 



