276" RECORD OF SCIENCE FOR 1886. 



Wachsmuth, Charles, aucl Frank Springer. Revision of the 

 Pulrtjocrinoidea. Part ill. Discussiou of the Classification and Re- 

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

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

 , pp. 65, 302, March and September, 1880. Philadelphia.) 



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

 ceedings, an indexof all generic and specific names used in connection with 

 the Pala'ocriuidea. The total number of genera recognized in this worli is 

 15() ; 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 Inaduuata. 



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

 family name of Ichthyocrinidas, with the addition of Crotalocrinus and 

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

 acteristic features of the group. 



The Articulata are divided into two families, the Ichthyocriuid* andtheCro- 

 talocriiiida^, which are defined and the genera enumerated. 



The Inaduuata are divided into two branches, Larviformia and Fistnlata W. 

 aud Sp. The Larviformia comprise the families Haplocrinidte, Synbatho- 

 criuidiai, Cupressocrinidie and Gasterocomida-, which are defined. 



Under the HaplocrinidiO are placed only two genera, ffaj;Zocrui»t8, Si einiuger, 

 and AUagecrinnn, Ethei". and Carp. 



Under the Synbathocrinidse, W. and Sp., are ])laced the genera Synbathocrinus, 

 Phimoa'inus, Stijlocrinus, S lor tiny ocrinus, risocrinus, Triaerinus, and Lageni- 

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

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

 criuidis, or bo made a distinct group. 



The Cupressocrinoidte, Roemer, consist of only one genus, Cupressocriuus, Gold- 

 fuss. 



The Gasterocomidie embrace the following genera : Gasterocoma, Kanocriniis, 

 aud MyrtUlocrtnus. 



The branch Fistnlata contains the Cyathocrinida^ as previously defined by the' 

 authors, but which they now divide into Hybocriuidic, Heterocrinida', Ano- 

 malocrinuhe, CyathocrinidiU, and Poteriocrinida\ To these they add the 

 Belemuocrinidip, Astylocrinidre, and Encrinidie. 



Their present Cyathocrinidte they subdivide into: Deudrocrinites, embracing 

 the genera jl/6'>'0uri«»s, Carahocrinus, Dendrocr'niuH, Homocrhuis, AmpherUtoc- 

 rmufi, and Parisocriniis ; Botryocrinites, embracing the irenern Alclestocri- 

 nus,* n. gen. (aud the new species A. deUcaiim aud A. rohnstiis are described 

 under it), Vasocriims, Botri/ocrinim, Sicyocrinus, Strejjtocrinus, and ? Jiarycri- 

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

 branch-arms without pinnies; Cyaihocrtnus, Arachnocnnus, Gi^fiocrinus, 

 Sjjhwrocrhius, Acliradocrinun, Codiacrinus, and (?) Lecythiocrinus. 



They subdivide the Poteriocnnida' as follows: Poteriocrinites embracing the 

 genera Fotcriocrinns, Scaphiocrhntfi, ScytaJocrinns, Decadocriniis, IVoodocrinus, 

 Zeacrinus (aud describe the new species Z. nodosus), Hydreionocrinus, Cwlio- 

 crinus, Eiipachycrinus, Cromyocrinus, and TribracMocrinus. Graphiocrinites 

 embracing the genera Graphiocriviifi, Buraacrinus, Phial ocrinus, and Cerio- 

 crinus. Erisocrinites embracing the genera Ertsocrinus and Stemmatocrinns, 

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

 branch the Catillocrinida? and CalceocriuidiB. Under the Hybocrinidse, Zit- 



*'«re/lt(Trof, incomplete ; Kpivov ,lily. 



