863 



Rete. 



and was referred to Eetepora ; if not a Eetepora. it is a Oor- 

 gonia^ which DeKoninck says can hardly be told apart, because 

 the skin is usually torn off and left on the stone ; Goldfuss says 

 that Oov. repisteria has such a skin. Owen thought therefore 

 that his fossil might be a screw Gorgonia. XL 



Eetepora staminea^ Rogers' Geol. Pa., 1858, p. 817.. II c, 



Eetepora striata, Rogers' Geol. Pa., 1858. II c. 



Retepora ? In Fellows' collections of 1876, above Ty- 

 rone forge Huntingdon Co. 000, p. 189; spec. 211-7. II c. 



Retiograptus geinitzianus, a graptolite figured by Hall^ 

 !iib__^^..«,^.«. — Pal. N. Y. Vol. 3, 1859, on page 518. 



Hudson river strata. III 5. 



miM. 



ZBs: 



Retzia chloe. Billings. Geology of Canada, 1863, page 385, 

 Vill ^ ^ t 419 fig 419 a, ventral valve ; 5, c^ 



side view and dorsal valve. 

 Hamilton formation, VIII c. 



Retzia eugenia, Billings, Canad. Jour. 1861. Geology of 

 a'''<^ -x imj^ Canada, 1863, page 373, fig. 395 a, dorsal 

 ^ ' valve; S, side view of the same specimen. 



Corniferous limestone formation. Villa. 



Retzia evax, Hall. From CoUett's Indiana Report of 1881, 



lND.1851 



Pi/dS, 



