10 Dr. G. Lindstrom on the Affinities 



(Geol. Russia, i. p. 593), as well as Eicliwald (Letli. Ross. i. 

 i>. 475), includes under this name the species of both Monticu- 

 lipora and Cha'tetes. Milne-Edwards at first adopted the 

 same course, but finally (Hist. Nat. des Cor. vol. iii. p. 270) 

 separates the species with maculse (=venuc{e or nionticuli) 

 under the name of Monficulijwra, and retains Chcetetes for the 

 species with calicles of the same size, thereby approaching 

 Stenoporo. 



?Cladoj)ora, Hall {loc. cit. p. 137). Embraces species of 

 Favosites and C<vm'tes, the latter being probably a Bryozoon. 



?Ccenites, Eichw. (Zool. Spec. i. p. 179). 



Constellaria, Dana (U.S. Expl. Exped. Zooph. p. 537). 

 Possesses star-shaped monticules, and is synonymous witii 

 Stelh'poraj Hall. Rominger identifies with it HeJUpora, Meek 

 & Worthen [Joe, cit. p. 118). According to D'Orbigny the 

 genus is Bryozoan. 



Cyatho-pora^ Dale Owen (Rep. Geol. Iowa, 1844, p. 69). 

 According to De Koninck (Anim. Foss. p. 142) this genus is 

 identical with Monticulipora. 



Dania, E. & H. (Comptes Rend. t. xxix. p. 261). 



Dinnulifhes^ Eichw. (Zool. Spec. i. p. 180). Typical 

 species D. detritus, ItLichw ., = Monticulipora Panderi, E. ik, H. 



Fistidijyora, M'Coy (Pal. Foss. p. 11). Under this generic 

 name have been included fossils which are partly Heliolitidai 

 and partly Monticidiporce in what I have called the " Fistuli- 

 jiora stage " of growth. One of McCoy's species, viz. F\ deci- 

 piens, is a Heliolites in which the septa are aborted ; whilst 

 his F. minor seems to belong to a gi'oup of Polyzoa often 

 described by American palajontologists, especially from the 

 Devonian fonnation. It seems doubtful whether these species 

 are really identical with Trematopora ; and Rominger thinks 

 Hellipora, Meek & Worthen, to be really a Constellaria. 



Limaria, Steininger (Mem. Soc. Gdol. deFrance, i. p. 339). 

 Identical with Ccanites, Eichw. 



Lunatipora, Winchell (Append. Rep. on Grand-Traverse 

 Region, p. 89). Possesses a branching polyzoary, with tabula?. 



Monticidipora, D'Orb. (Prodr. de Pal. i. p. 25). In his 

 Eldm. de Paleont. ii. p. 109, D'Orbigny places this genus 

 amongst the Bryozoa, next to Acanthopora, but unites with it 

 species belonging to different genera and from different fonna- 

 tions. Synonyms are NebuUpora, M'Coy, and Ehinoporn, 

 Hall. Some authors also consider DianiditheSj Eichw., a 

 synonym of this ; but the typical species {D. detritus) has no 

 monticuli, sparse tabulae, and the tubes filled up in a peculiar 

 manner, so as to constitute a separate genus. 



Myriolithes, Eichw. (Lcth. Ross. i. p. 450). Comprises 



