276 RECORD OF SCIENCE FOR 1886. 



Wachsmuth, Charles, aud Frank Springer. Eevisiou of the 

 PaliBocrinoidea. Part ill. Discussion of the Classification and Re- 

 lations of the Brachiate Crinoids, and Conclusion of the Generic De- 

 scriptions. Second section. (Proc. Acad. Nat. Sci. Philad., vol. 

 - — , pp. Go, 302, March and September, 18SG. Philadelphia.) 



Same, author's edition, pp. 65-334, contaius, in addition to the article in the pro- 

 ceedings, an ind(!X of all generic and specific names nsed in connection with 

 the Paiicocriuidca. The total luiuiber of genera recognized in this work is 

 15(5; species, 1,276. Of .the genera, 61 were found exclusively in America, 

 48 exclusively in Europe, 46 on both continents, and 1 exclusively in Aus- 

 tralia. 



Part III, Section ii, contains the Articulata and the luadunata. 



The Articulata include the group formerly defined by the authors under the 

 family name of Ichthyocrinidaj, with the addition of Crotalociinits aud 

 Enallocriniis, which possess in a remarkable degree some of the most char- 

 acteristic features of the group. 



The Articulata are divided into two families, the Ichthyocrinidae andtheCro- 

 talocriuidiB, which are defined and the genera enumerated. 



The Inadunata are divided into two branches, Larviformia and Fistulata W. 

 and Sp. The Larviformia comprise the families Haplocriuida^, Synbatho- 

 crinidiaj, Cupressocrinidai aud Gasterocomida', which are defined. 



Under the Haplocriuidte are placed only two genera, ffo^iocHwas, Sieininger, 

 and AlJagecrinni, Ether, and Carp. 



Under the Synbathocrinidae, \V. and Sp., are placed the genera Sijnbathocrinus, 

 Phimocriiius, Sti/locrinus, Stortingocrinus, Pisocrimts, Triacrtnus, and Lageni- 

 ocrinus. They are uncertain whether to place Bliopalocrinus, W. and Sp. 

 (Rev. 1, p. 57), among the Synbathocrinida', Cupressocrinidai, Gastero- 

 criuidte, or be made a distinct group. 



The Cupressocrinoida;, Roemer, consist of only one genus, Cnpressocriniis, Gold- 

 fuss. 



The Gasterocomidte embrace the following genera : Gasterocoma, Nanocrinua, 

 and MyrtUlocrinus. 



The branch Fistulata contains the Cyathocrinid;e as previously delined by the 

 authors, but which they now divide into Hybocrinida", Heterocriuida-, Ano- 

 malocrinidie, Cyathocrinida% and Poteriocriuidie. To these they add the 

 Belemnocrinida>, Astylocrinida-, and Encrinidic. 



Their present Cyathocrinidie they subdivide into: Deudrocrinites, embracing 

 the gen&va, Mcrocrinun, Carahocrinns, Dendrocrhius, Homocrhius, Ampheriitoc- 

 riniifi, and Purinocrinus ; Botryocrinites, embracing the genera AlcleHtocri- 

 ««s,* n. gen. (and the new species J. dcUcatiiii and A. rohnstiis are described 

 under it), Vasocrinun, Botrgocrinm^, Sicijocrinus, Sfrcptocrhitts, and ? Barycri- 

 nus. Cyathocrinites, embracing the genera without azygous plate, with 

 branch-arms without pinnies ; Cyathocrinus, Arachnocrinuii, Gisnocrinits, 

 Spha'rocrinns, Achradocrinu.s, Codiacrinns, and (?) Lecyihiocrinus. 



They subdivide the Poteriocrinidie as follows: Poteriocrinites embracing the 

 genera Poteriocriniis, Sc((phioc7-liius, Scytalovrhins, Decadocriniis, TJ'oodocrinus, 

 Zeacrinus (and describe the new species Z. nodosufi), Hydrcionocrinun, Cadio- 

 crinus, Eiipachycrhius, Cromyocriniis, and Trihrachioeriinii^. Graph iocrinites 

 embracing the genera Graphiocrinufi, ISuysacrinns, Phialocniius, and Cerio- 

 crinua. Erisocrinitea embracing the genera Erisucrinus and Stemmatocrinus, 

 and describe the new species S. Traiilscholdi. They also define under this 

 branch the Catillocrinidae and Calceocrinida'. Under the Hybocrinidaj, Zit- 



"QTe'AiaTof;, incomplete; Kpli>ov , lily. 



