1853.] 449 



C. PATULA. 



Inhabits Bay of Caraccas (on mud banks,) Cuming. 



C. CORONA. 



Pyrula patula, Brod. and Low. Zool. Journ.iv, p. 377. Reeve, PrRULA,No.20. 

 Murex corona, Gmel. 



Ftcsus corona^ Lam. An. sans Vent. (ed. of Desh.) ix, p. 453. 

 Buccinum ornatum, Say. Journ. A. N. S. ii, p. 229. 

 Melongeyia corona, Silliman's Journ. (new series) ii, p. 297. 

 Inhabits Florida. 

 C. ? paradisiaca. 



Pyriim 'paradisiacum. Martini, iii, pi. 94, fi^. 909, 910. 

 Fyriila nodosa. Lam. An. sans Vert. (ed. of Desh.) ix, p. 518. 

 Inhabits Ceylon, Mozambique, &c. 



ATHLETA, Con. 



Ovate, voluta-shaped ; spire short, acute; columella with plaits as in Voluta. 

 A callous projecting on the shoulder, and covering a portion of the spire. 



A. RARISPINA. 



Voluta rarispina, Lam. An. sans Vert. (Desh. ed.) x, p. 426. Enc. Method. 



pi. 384, fig 2. 

 Locality, Dax, in Miocene. 



A. AFFINIS. 



Voluta affinis, Beong. Grateloup. I'ert. Foss. pi. 1, fig. 16, 20. F. rarispina, 

 jun, Desh. 

 A. TuoMEYi, Con. 



Ovato-turbinate, with revolving lines distinct on the lower half and obsolete 

 above on the body whorl; shoulder with distant prominent acute spines; 

 between the spines and suture the side is flattened, swelling a little near the 

 suture, and has a few revolving raised unequal lines; penultimate whorl con-' 

 cealed by the callous, above which the whorls are finely tuberculated and 

 somewhat turrited ; columella with 2 prominent plaits and 3 obsolete ones. 

 Length U inch. 



Locality. Bashia creek, Clarke co., Alab. 



I have given Mr. Tuomey's name to this interesting shell which was originally 

 referred by him to V. Sayana with doubt. Mr. Tuomey says the group of fossils 

 in this locality are very distinct from those of Claiborne, and I have no doubt the 

 deposit will prove to be an upper bed of the Eocene which may, when the fossils 

 are all collected, be found to contain some of the species of the Older Miocene as 

 it occurs at Vicksburg, Miss. The Athleta Tuomeyi, though a very distinct 

 shell, is related to a Miocene fossil of Dax, {A. rarispina,) which is an abundant 

 species. The genus appears to have no living representative. 



Omissions and Corrections to the Synopsis of the North American Naiades. 



By T. A. Conrad. 



U. perobiiquus, Conrad. Monog. p. 51, pi. 27, fig. 2. 



U. Rangianus, (female,) Lea. 1838, vi, 95, 18, 56. 



U. Sageri, Conrad. Monog. p. 53, pi. 29, fig. 1. 



Stroph. Etowaensis, instead of Etowaosis, see Proceed. A. N. S. vi. p. 263. 



Monodontina Buschiana, Conrad. (Marg. Vondenbuschiana, Lea.) ib. p. 269. 



U. pectitus belongs to Agassiz's proposed genus Scalenaria. 



U. Aberti ....*.. Cyprogenia. 



U. fragosus, nobilis, apiculatus . Quadrula. 



Note on Reguienia? Serisent. 

 I propose, in the uncertainty of the reference of this shell, to institut sub- 

 genus, under the name of Arietina. 



Inequivalved ; both valves deep, with involute beaks. 



61 



