248 RECORD OF SCIENCE FOR 1886. 



Etheridge, Kobert, Jr., and P. Herbert Carpenter— Coatinued. 



Pliwnoschism:i, E, & C, liii. Type Pcnlatrematitcs acuta, G. B. Sby. There 

 appear to be three species in the Carboaiferous rocks of America. ? Pentre- 

 miies {Codaster) Kentackienais, Shiimard, aud two species from New Mexico 

 which Mr. Wachsuiuth will describe. 

 II. Subfamily Criiptoachismidw, E. & C, 1880. 



Orophocriuiis, vou Seebach, 1S64. Type Pentremiies stelliformis, Owen and 

 Shumard. Three American species are referred to this genus, all confined 

 to rocks of the Carboniferous period — Codonites campanulatiis, Hambach, C. 

 gracilis, M. & W., and the type species. The geuus occurs in rocks of the 

 same age in England, Ireland and Belgium. 



Order Irregulares, E. & C, 1HS6. 



This order has been established to contain three very remarkable genera: 

 7i'/('u//(froe;-()n(s of Shumard &. Yandell, two species of which occur in the 

 Devonian rocks of America, and the British genera Jstrocrinites and Pente- 

 pliijllum. 



Astrocrinltidce, T. & T. Austin, 1343 (Emend. E. & C). This family is divided 

 into two groups. The first contains Eleutherocrinus and Astrocriiiilcs, T. »fe 

 T. Austin ; the second PentephyUum, Haughton. 



Etheridge, Robert, jr., and P.Herbert Carpenter. Cataloo-ue 

 of the Blastoidea in the Geological Department of the British Mii- 

 seiun (Natural History), with an Account of the Morphology and 

 Systematic Position of the Group, and a Revision of the Genera and 

 Species ; pp. i-xiv and 1-322. Dlustrated by twenty lithographic 

 plates and twelve wood-cuts. (London, 188G. Printed by order of 

 the Trustees.) Price 2os. Geol. Mag., new ser., Decade iii, vol. iii, 

 pp. 41'J-4r25, figs. 1-3. September, 1886. London.) 



Review of, contains many remarks on American species. 



ETnERiDGE, Robert, jr., and P. Herbert Carpenter. Catalogue 

 of the Blastoidea in the Geological Department of the British Mu- 

 seum, 322 pp., 4to, with 20 i)lates. London, 1886. ( Amer. Jour. Sci., 

 3d ser., vol. xxxii, pp. 409-410. November, 1886. New Haven.) 

 Review of. 



Etheridge, Robert, jr., and P. Herbert Carpenter. Catalogue 

 of the Blastoidea in the Geological Department of the British Mu- 

 seum (Natural History), with an Account of the Morphology and 

 Systematic Position of the Group, and a Revision of the Genera 

 and Species; pp. i-svi and 1-322 ; 20 plates. London: Printed by 

 order of the Trustees, 1886. (Ann. and Mag. Nat. Hist., 5th ser., 

 vol. XVIII, pp. 412-417. November, 18S6. London.) 



Review and abstract of. 



"The description of the various species of Blastoids is very limited both in 

 space and time. A few species appear to be common to the Upper and 

 Lower Devouianof A'nai-iyi, bufceacli of the great divisions of the Snb-car- 

 bouiforous in the Mississippi Valley seems to have its own particular types. 

 No Biastoid occurs on both sides of the Atlantic ; one species is common to 

 the Devonian of Spain and Germany, and another to the Carboniferous 

 limestone of Britain and Bolgiuni. But, with these exceptions, the range 

 of individual specific types is very limited indeed." 



