TRANSACTIONS OF WAGNER 

 670 



TERTIARY KAUNA OF FLORIDA 



This species, from the fragments, should reach a considerable six.c. Lea's 

 type was a very small shell. The beaks are less prominent than in /'. argcntca, 

 the byssal sinus is obsolete or feeble, the right valve has a marked semilunar 

 pit apparently to receive a tooth from the opposite valve ; the surface appears 

 to be more or less lamellose in the adult. 



Pteria colymbus liolten. 



I'iiicttidit c<>/yiii/iit!i liolten, Mus. Boltenian., p. 167, 1798 ; Chemn., Conch. Cab., viii., p. 



141, pi. 81, fig. 723, 1785 ; Morch, Cat. Yoldi, ii., p. 53, 1851. 

 Avifitlii titliintiea Lam. (ex partc). An. s. Vert., vi., i, p. 148, 1819. 

 Avicnln liinnnto Ciinelin, Syst. Nat., p. 3357, 1792, fx parte, non Rolten. 

 Avifiila a/uco Phil., Zeitschr. f. Mai., vi., p. 20, 1850. 



Aviciiln clitoris 1'hil., Zeitschr. f. Mai., viii., p. 54, 1853. 



Avicula iiiacroptcrci I!eau, Journ. de Conchyl., ii., p. 426, 1851 ; Kix'bs, Cat., )). 132, 



1864, not of Reeve. 



Aviculct coniiiiitnh Krcbs, Cat., p. 131, 1864, not of Lam. 

 Avicula hetcntptcra Krcbs, Cat., p. 131, 1864, not of Reeve. 

 Avicula pteria Krebs, Cat., p. 131, 1864, not of Scopoli. 

 Avicula a/lanlica Holmes, P.-P1. Fos. S. Car., p. 14, pi. 3, fig. I, 1858. 

 Avicula liiniiulo Say el a/., non Bolten. 



Pliocene of the Caloosahatchie beds, south Florida, Dall ; Post Pliocene 

 of Abbapoola and John's Island, South Carolina, Holmes ; recent on the 

 southeastern coast of the United States and in the West Indies in shallow 

 water. 



Pteria hirundo liolten. 



Mytilus liirutidfl Linne, Syst. Nat., xii., p. 1159, 1766, ex partc. 



I'incltiila Jiiruiuio Bolten, Mus. Boltenian., p. 167, 1798 ; Chemn., Conch. Cab., viii., p. 



142, pi. 81, fig. 725. 



Avicula tiirentina Lam., An. s. Vert., vi., I, p. 148, 1819. 



Mediterranean. 



Pteria hirundo var. vitrea Reeve. 



? Avicula strix Phil., Zeitschr. f. Mai., vi., p. 22, 1850; (on Sargasso.) 



Avicida vitiva Reeve, Conch. Icon., Avicula, pi. 18, fig. 68, 1857 ; (West Indies.) 



Avieula /iiniiitf<> var. nitiila Verrill, List I-'ish Com. Moll., p. 281, 1884. 



Post Pliocene of the West Indies and Costa Rica ; recent, on the south- 

 eastern coast of the United States and in the West Indies in rather deep 

 water. 



