100 



Report of the State Geologist 



Probeloceras Lutheri, Clarke, 1885. 



1843 (?) Clymenia ? complanata, Hall. Geology of New York, Rept. Fourth 



Dist., p. 244, fig. 106, 5 (p. 243). 

 1861 (?) Clymenia complanata, Hall. Descr. New Species of Fossils, p. 35. 



1861 (?) Clymenia Erato, Hall. Descr. New Species of Fossils, p. 36. 



1862 (?) CI iimn, in complanata, Hall. Fifteenth Ann. Rept. N. Y. State 



Cab. Nat. Hist., p. 63. 

 1862 (?) Clymenia Erato, Hall. Fifteenth Ann. Rept, N. Y. State Cab. Nat. 

 Hist., p. 64, pi. x, fig. 1. 



1874 (?) Goniatites complanatus, Hall. Descr. New Species Goniatitiche, p. 1. 



1875 (?) Goniatites complanai/as, Hall. Twenty-seventh Ann. Rept. N. Y. 



State Mus. Nat, Hist., p. 132. 



1876 (?) Clymenia Erato, Hall. Illustrations of Devonian Fossils: Cephalo- 



poda, pi. lxx, figs. 6, 7. 

 1876 Goniatites {Clymenia) complanatus, Hall. Illustrations of Devonian 



Fossils: Cephalopoda pi. lxx, possibly figs. 10, 11, nat. 8, 9. 

 1879 Goniatites complanatus, Hall. Palaeontology of New York, vol. v, 



pt. 2, p. 455, pi. lxx, possibly figs. 10, 11 ; not figs. 8, 9; probably 



not figs. 6, 7. 



1885 Goniatites Lutheri, Clarke, Bull. No. 16, U. S. Geol. Surv., p. 50, 

 pi. ii, fig. 8. 



Not Goniatites complanatus, Hall. Palaeontology of New York, vol. v, pt. 2 # , 

 Suppl. pi. exxvii, fig. 2, 1888. 



Historical. The shell described by Professor Hall in 1843 (pp. cit.) as 

 Clymenia f complanata represents the exterior of a flattened specimen, show- 

 iii"- a characteristic e volute form and a fine concentric surface striatum. 

 The septa, however, are totally concealed. In view of the fact that there are 

 now known to be at least three well-defined species in the Portage shales 

 which seem to have precisely the character of exterior ascribed to Clymenia f 

 complanata, it would be possible to determine the exact value of this species 

 only by careful re-examination of the original example. Where this original 

 now is, can not be ascertained. It is not in the collections of the New York 

 State Museum, nor has it been found among the Portage material in the 

 American Museum of Natural History in New York, through which the 

 writer lias, by the kindness of the curator, Mr. R. P. Whitfield, several times 

 carefully searched, tn the latter collection there are certain specimens, how- 

 ever, marked C ? complanata, whose labels indicate that they were collected 



