306 TRANSACTIONS OF THE WAGNER FREE 



Chesapeake Miocene of Petersburg, Va., Lea ; and of North Carolina, 

 Emmons ; and older Miocene of Haiti, Gabb. 



This species is the type of the genus, and very well characterized by its 

 peculiar turreted spiral growth and ornate sculpture. Gabb has fully identified 

 the Santo Domingo fossil with Lea's species. 



Among other fossils which have been referred to this general vicinity, 

 Serpula anguina H. C. Lea is doubtless a Vermetus. Serpula texana Gabb, 

 from the Eocene of Texas (Journ. Acad. Nat. Sci., 2d Sen 4, p. 388, pi. 67, fig. 

 41, i860), and S. diantlms Verrill, from the Post-Pliocene of Sankoty Head 

 Mass. (Am. Journ. Sci., 3d Sen x. p. 373, 1875), are genuine SerpiilcB. Ser- 

 pula squamidosa Conrad (Journ. Acad. Nat. Sci. vii. p. 149, 1834), from the 

 Claibornian Eocene, is probably synonymous with Serpzdaornata Lea (Contr. 

 GeoL, p. 37, pi. I, fig. 5, 1833), and may be referable to Serpidorbis. 



Vermetus ? ( Anguinella) virginica Conrad. 



Serpula virginica Conrad, Medial Tert., 3d page of cover to part of the editions of Nos. 



I and 2, Apn 16, 1839. 

 Vermetus virginicus Orbigny, Prodr. Pal. iii. p. 48. 

 Anguinella virginiana Conn, Medial Tert., p. 77, pi. 44, f. 4, 1845 ; Proc. Acad. Nat. Sci- 



Phila. 1S63, p. 568. 

 Vermetus anguina T. & H. («o«Lea), Pleioc. Fos. S. C, p. 123, pi. 26, f. 12, 1S57. 



Older Miocene of Shiloh, N. J., and of White Beach, near Osprey, 

 Florida, Dall ; Chesapeake Miocene ofUrbanna, Middlesex Co., Va., Conrad, 

 and the Peedee River, S. C, Tuomey and Holmes. 



This species I believe to be the test of a tubicolous annelid, but place it 

 here, since the fact remains somewhat doubtful. It is concentrically ringed 

 with a circular, somewhat campanulate aperture like the tubes of some 

 species of Serptda* Lea's Serpida anguina is a genuine Vermetus having 

 a spiral larval shell. It may possibly be an irregular form of the same 

 species which he named 6'. convobtta, but probably should not be referred, as 

 has been done by Conrad, to the young of P. sculpturatus. 



Genus SILIQUARIA Lamarck. 



Of late it has been the fashion to use Tenagodus, Tenagoda or Tenagodes 

 for this group and ascribe the name to Guettard (1774). I have not been 

 able to consult Guettard's memoir, but, from the doubt exhibited as to the 

 termination and the mode of certain citations, it seems unsettled that Guettard 

 used any Latin name for the genus. Deshayes cites " Tenagode " simply, 

 and such a trivial name in the vernacular has no just claim to recognition. 



* Another species which should probably be referred to Serpula has even, irregularly coiled tubes, 

 smooth or slightly granular of surface and a little flattened on one side. They average about 2 mm. in diame- 

 ter and 36 mm. long. They taper but slightly except in the earlier portion, which has occasionally some 

 obsolete, little-elevated longitudinal lines. For purposes of reference it may take the name ot Serpjda mendica. 

 It is found in the Pliocene of the Caloosahatchie and the Myakka River, Florida. 



