xvui SYNOPSIS OF GENERA. 



create. Cells tubular, without septa. Intercellular structure vesiculose near 

 the base, septate above. 



Example : Phractopora cristata, pi. xxi, figs. 36, 37. 



Fistulipora, McCoy (Ann. and Mag. of Nat. Hist, vol. Ill, p. 130. 1849). 

 [Type, Fistulipora minor, McCoy.*] 

 Zoarium lamellate or massive, free or incrusting, sometimes ramose, hollow. 

 Cells tubular, septate or non-septate. Interapertural space occupied by angular 

 pite. Intercellular tissue composed of vesicles, sometimes irregularly disposed, 

 at other times regularily superimposed, resembling septate tubuli. 

 Kxamples: Fistulipora intercellata, pi. xxxii, figs. 15-20. 

 Fistulipora confertipora, pi. Iviii, figs. 1-5. 



Favicella, n. g. [Type, Thallostigma inclusa. Hall.] 



Zoarium free or incrusting, consisting of a thin expansion. Apertures inclosed 

 in regular polygonal vestibular areas, similar to Selknopora. Surface between 

 the apertures and ridges occupied by minute mesopores. Intercellular structure 

 vesiculose. This genus bears the same relation to Fistulipora, that the forms 

 included under Selenopora l)ear to Liciienalia. 



Example: Favicella inclusa, pi. Iviii, figs. 21, 22. 



Ceramopora, Hall (Pal. N. Y., vol. ii, p. 168. 1852). 

 [Type, Ceramopora iinbricata. Hall.] 

 Zoarium usually incrusting. Cells angular, radiating from one or more 

 centers. Apertures angular, with the posterior margin usually elevated, giving 

 to them an imbricating appearance. 



Examples: Ceramopora maculata, pi. xvi, figs. 5-11. 

 Ceramopora labeculoidea, pi. xvi, figs. 1, 2. 



Paleschara, Hall (Twenty-sixth An. Kept. N. Y. State Mus. Nat. Hist., p. 

 107. 1874). [Type, Paleschara incrustans, Hall.] 

 Zoarium consisting of thin expansions, usually incrusting other bodies. Cells 

 polygonal, in contact, with frequent maculae of larger cells. 

 Examples : Paleschara incrustans, pi. xvi, figs. 15-21. 

 Paleschara radiata, pi. xvi, figs. 13, 14.- 



'Von.— Fitltdipura minor, ticCoy =s Oaiamopora incruntaTU, PhillipH, according to Pi-of. H. A. Nicholson. 



