509 



Fossil in Prof. Sismonda's * 



— "o 

 es o 



US 



o 



O £ 



h t0 cs 



£ o"5o 



|.g. 3 



Taf. I. 

 Holaster Ag. 



suborbicularis , . . 



subglobosus l 



? Allanen, rotundatus Ris.j «... 



Sandoz ...... ! 



altus 



? Rissous Sism. i 



Sp. placinta Ris. \ 



Perezii Sism. 11, f. 1 — 3 .... 

 Ananchytes Lk. 



ovata Lk ! 



Toxaster 



Verany Sism. 16, f. 4—5 



complanatus ) i 



">Sp. chloriteus Ris. <i 



Nicaeensis Sism. 18, f. 6—8 . . . 



Collesnü Sism. 21, f. 9—11 . . . 

 Micraster Ag. 



eor anguinum ! 



gibbus ■....„ 



cordatus 



arenatus Ag., Sis. 28, f. 12 ... 



latus Ag., Sis. 29, f. 13 j 



?Sp. subalpinus Ris. $'"*.," 



Taf. II. 



Spatangus Ag. 



? purpureus Müll. j 



?Sp. meridionalis Ris. \ . . . . 



? Sp. depressus Ris. t 



elongatus Ag., Sis. 35, f. 1 . .- . 

 Schizaster Ag. 



eurynotus Ag., Sis. 31, f. 2—3 I , 



">Sp. globosvs Ris. {' 



Studeri Ag., Sis. 32, f. 4 .... 



?Goldfussii Ag. ) 



? Sp. cristatus Ris.j 



Pygorhynehus Ag. 



scutella 



Echinolantpas Gray. 



? oviformis Rlv. ) 



? Sp. slellulus Ris. j 



Francii Desm. > 



? Ananch. carinatus Ris. }•■•*•■ 

 Conoclypus Ag. 



plagiosomus 



subcylindricus ........ 



semiglobus 



Clypeaster Lk. 



altus Lk . . 



gibbosus Serr.j 



Scutella g. Ris.j 



Agassizii Sism. 48, f. 5, 7. 

 Galerites Lk. 



Rhotomagensis Ag., Sis. 51, f. 8—10 



castanea 



* Sismonda : osservazioni geologiche sutle (dpi muritimi, in Memorie d. K, 

 Accud. d. scienze di Torino, l, IV. 



