684 



BRYOZOA. 



[ART.- nkm. 



printed in the above named private pamphlet, on about nine pages. In other words, 

 thirty-eight new species and two new genera are defined on about nine pages, without a 

 single figure of any kind, and without mentioning a locality from which any of them 

 came, or informing any one of the age of the rocks further than to write "Burlington 

 limestone." 



Wachsmuth (who has probably seen some of the so-called types) has condemned, as 

 synonyms of other species, the above named Actinocrii-us muhibrachia'vs tar. echincttux, 

 A. thetis, A. thoax, A. quatrnarius var. gpiwferus, A. themis, A. eryx, A. Ingma, A. securii, 

 A. locellw, A. doriK, Platycrinus olla, P. glyptw, P. calyculus, P. nodobrachiatus, and Syn- 

 bathocrinus papillatus. 



Had I been able to see a copy of the pamphlet, none of the names would have ap- 

 peared as valid in the first edition of this work; but none of my correspondents had ever 

 seen one, and I borrowed most of the names from references made to them by Meek A 

 Wachsmuth. More recently Win. F. E. Gurley, of Danville, Illinois, has been able to 

 obtain a copy of all except the last page of the pamphlet, and I have been allowed to ex- 

 amine it, with the above result. 



SUBKINGDOM MOLLUSCOIDA. 



CLASS BRYOZOA. 



Some genera were by accident placed in two families in this Class. Correct by 

 striking Peronopora out of the Batostoraellidse ; Eridopora, Lichenotrypa, Sagenella, 

 and Selenopora from the Ceramoporidae ; Coscinella, Reptaria, and Semiopora from 

 the Fenestellidce ; Anisotrypa from the Rhabdomesontida? ; Heliotrypa from the 

 Stictoporida- ; Criscinella from the Thamniscida? ; Acanthoclema, Amplexopora, 

 Atactopora, Bactropora, Chilotrypa, Nemataxis, and Tropidopora from the Tremat- 

 oporida). Strike out the family Labechiidse because it belongs, probably, to the 

 Protozoa. Place Semiopora with the Ptylodictyonidse ; Sagenella and Reptaria with 

 the Tubuliporidae. 



The bryozoum is sometimes called cceneecium (koinos, common ; oikos, house) or 

 polyzoarium, especially when Polyzoa is used for the Class instead of Bryozoa. 

 Gymnolsemata, in the last line on page 289, is from, gumnos, naked ; laimos, the throat. 



Arthroclema armatum, A. cornutum and 

 Arlhrostylus conjunctus and A. ob- 

 liquus, Ulrich, 1890, Jour. Cin. Soc. Nat. 

 Hist., vol. 12, pp. 193 and 194 and pp. 

 189 and 190, Trenton Gr. 



Ceramopora concentrica and C. whitei, James, 

 1888, Jour. Cin. Soc. Nat. Hist., vol. 11, 

 p. 38. Not recognized. 



Chainodictyon, at the top of p. 297, is from 

 chaino, gaping; and dictuon, net. 



Diastoporina, Ulrich, 1890, Jour. Cin. Soc. 

 Nat. Hist., vol. 12, p. 177. [Ety. diminu- 

 tive of Diastopora.] Zoarium bifoliate, 

 flabellate ; zocecia tubular, prostrate, 

 not entirely immersed ; apertures con- 

 stricted, oblique, the anterior side not 

 elevated ; interspaces, striated. Type 

 D. flabellata, described, at the same 

 time, from the Trenton Gr. He also de- 

 scribed at the same time from the 

 Trenton Gr., Enallopora mundula under 



, the name of Mitoclema mundulum. He 

 gives his reasons for not using the ge- 



neric name Enallopora in vol. 8, Geo. 

 Sur. 111. p. 683. 



Deymotrypa, Ulrich, 1890, Geo. Sur. 111., vol. 

 8, p. 399. [Ety. drumos, a thicket ; trupa, 

 perforation.] Zoarium dichotomous, re- 

 verse striated ; zoecia in ranges, tubular, 

 thick walled in tangential sections, 

 springing from a thin plate ; superficial 

 apertures angular, oval within. Type D. 

 diffusa, Hall's Retepora diffusa, and in- 

 cludes Hall's Thamniscus cisseis and T. 

 niagarensis. 

 Feneatella hemitrypa, see Hemitrypa prout- 

 ana. 



Fistulipora laxata, Ulrich, 1889, Micro- 

 palseontology of Canada, p. 37, Hud. 

 Riv. Gr. The genus Fistulipora is re- 

 ferred by some authors to the Alcy- 

 onaria, because the larger pores increase 

 by ccenenchymal gemmation, a method 

 of increase said to be unknown among 

 Bryozoa. 

 Glyptotrypa on p. 307, read Olyptopom. 



