70 TRANSACTIONS OF THE WAGNER FREE 



Among recent forms the species apparently most nearly related to 

 Fasciolaria scalarina is F. Jilainentosa of Chemnitz, from the Indo-Chinese 

 seas. This species has much the habit of the American form, but is 

 largely deficient in the number of longitudinal ribs, which are also much 

 more distinctly nodose, and bring about a very prominent angulation to 

 the whorls of the spire not less than to the body -whorl ; the columellar 

 plaits are three in number, instead of two. The same characters approxi- 

 mately serve to distinguish F. scalarina from the European Miocene/". Tar- 

 belliana of Grateloup (Atlas Conch. Foss. Bassin de 1'Adour, pi. 23, fig. 14 ; 

 Homes, Die fossil. Mollusken d. Tertiar-Beckens von Wien, I, p. 298, 

 pi. 33, figs. 14), which, if not identical with the recent form above referred 

 to, is certainly very closely related to it. 



Fasciolaria gigantea, Kiener. 



Icon. Coq. Viv. p. 5, pi. 10, n. 



Tryon, Manual of Conchology, iii, p. 75, pi. 60, fig. 14-16. 



Two specimens of this large conch were found in the upper part of 

 the banks below Fort Thompson, on the verge of the Post-Pliocene layer. 

 They do not seem to differ essentially from the living- form. The nodes 

 appear somewhat less prominent, and are in a measure indented through 

 a passing shallow sulcus. 



Fasoiolaria tulipa, L. 



Syst. Nat., I2th ed., p. 1213. 



Tryon, Manual of Conchology, iii, p. 74, pi. 59, figs. 1-5. 



In the banks of the Caloosahatchie, below Fort Thompson. 



The largest specimen measures just six inches in length. A probable 

 variety of this species, with a more elevated spire and a correspondingly 

 depressed aperture, appears to be identical with the variety figured by 

 Tuomey and Holmes in their work on the Pliocene fossils of South 

 Carolina, pi. 30, fig. 8. 

 Melongena subooronata, nov. sp. Fig. 3. 



Shell broadly-turbinate, of about five volutions ; spire moderately ele- 

 vated, scalariform, its rounded whorls profoundly ribbed, subangulated 

 or carinated medially, and crossed by numerous well-defined revolving 

 lines, which alternate as coarser and finer striae ; the ribs of the whorl 

 next to the body-whorl, and sometimes also the one above, distinctly 

 tuberculated or spinose, or even coronated. 



Body-whorl very ventricose, obtusely angulatcd above, with a row 

 (in presumably adult individuals) of from eight to ten prominent scaly 

 tubercles, which stand outward from the shoulder angulation; a single 

 row of supra-basal tubercles, six or seven in number, some of which are 

 developed into short pyramidal spines ; entire surface covered with coarse, 

 closely arranged striae, which may become partially obsolete on the 

 shoulder. 



