﻿AMERICAN TERTIARY AND CRETACEOUS FOSSILS. 389 



crossed by several transverse ridges ; laminae thick, edges dentate, sides of laminae 

 granulous, granules without any marked arrangement. 



Dimensions. — Height '8 in., breadth *8 in., thickness *5 in. 



Locality. — Caldwell Co., Texas. My collection. I have seen no specimens of this, 

 or the following species, from Wheelock. 



Trochosmilia Mortoni, G. and H. PL G9, figs. 4, 6. Straight or somewhat 

 curved near the apex, exteriorly striate ; striae denticulate, sometimes connected by 

 the junction of opposite teeth; laminae crowded, thin. 



Dimensions. — Length 1 in., breadth 1-1 in., thickness '7 in. 



CYLICOSMILIA, M. Edw. 



C. caulifera, O. and H. PL 69, figs. 7-9. 



Turbinolia caulifera? Con., Jour. Acad., 2d series, Vol. 1, pi. 13, figs. 33 and 34. 



Conical, slightly flattened, with the laminae coarsely granulous ; columella large, 

 occupying one-third of the calice, exteriorly striate ; striae with their edges acute, 

 often dichotomous, connected by short, transverse bands. 



Dimensions. — Length *75 in., width - 4 in., thickness - 35 in. 



Locality. — Caldwell Co., Texas. My collection. 



This species differs slightly from the generic description, in having ribs which are 

 dichotomous, but as the genus was described from a single species, and as the present 

 species diflers in no other respect, it is fair to infer their generic identity, and to 

 conclude that the absence of ramifications is not a generic character. 



This species is probably identical with Turbinolia caulifera of Conrad, described 

 from Vicksburg, Miss. Should it prove distinct we would suggest the specific name 

 C. dicliotoma. Conrad's species is, according to the figure, a true Cylicosmilia. 



CRETACEOUS SPECLES. 



FUSUS, Klein. 



F. Holmesianus. PL 68, fig. 4. Fusiform, whorls eight, angulated ; spire acumi- 

 nate, elevated, not as long as the mouth ; surface marked by a series of elongated 

 nodes on the angles of the whorls, (fourteen on the body whorl,) crossed by very fine 

 revolving lines ; mouth long, canal long and nearly straight. 



Dimensions. — Length '9 in., width of body whorl - 45 in., length of mouth - 6 in. 



Locality. — Ripley Group, Eufala, Ala. Collection of Prof. Holmes. 



NEPTUNE A, Bolton. 



N. impressa. PI. 68, fig. 5. Fusiform, whorls six, rounded; spire sharp, but not 



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