492 Systematic Paleontology 



one of these costse to the lower suture, another one somewhat stronger than 

 those in the interspaces above. The surface is also marked by very fine 

 transverse lines of growth." — Weller, 1907. 



The species has a meager representation in Maryland. It is character- 

 ized by the relatively large apical angle, and the subdued, though rather 

 elaborate spiral sculpture. 



Occurrence. — Monmouth Formation. Brightseat, Brooks estate near 

 Seat Pleasant, Prince George's County. 



Collections. — Maryland Geological Survey, New Jersey Geological Sur- 

 vey, U. S. National Museum. 



Outside Distribution. — Mataivan Formation. Marshalltown marl, 

 New Jersey. Ripley Formation. Exogyra costata zone, Union County, 

 and Owl Creek, Tippah County, Mississippi. 



Tueeitella enceinoides Morton 



Turritella encrinoides Morton, 1S34, Syn. Org. Rem. Cret. Group, U. S., p. 



47, pi. iii, fig. 7. 

 Turritella encrinoides Meek, 1864, Check List Inv. Fossils, N. A., Cret. and 



Jur., p. 18. 

 Turritella encrinoides Conrad, 1868, Cook's Geol. of New Jersey, p. 729. 

 Turritella encrinoides Gabb, 1876, Proc. Acad. Nat. Sci., Phila., p. 301. 

 Turritella encrinoides Whitfield, 1892, Mon. TJ. S. Geol. Survey, vol. xviii, 



p. 143, pi. xviii, figs. 19-22. 

 Turritella pumila ? "Whitfield, 1892, Ibidem, vol. xviii, p. 187, pi. xxii, figs. 



5, 6. (Not T. pumila Gabb.) 

 Turritella encrinoides Johnson, 1905, Proc. Acad. Nat. Sci., Phila., p. 21. 

 Turritella encrinoides Weller, 1907, Geol. Survey of New Jersey, Pal., vol. 



iv, p. 694, pi. lxxviii, figs. 10-13. 



Description. — " Of this fossil I have met with several fragments, yet 

 scarcely perfect enough for description. I have figured one of them to 

 show the difference between this and the former species [T. verteiroides 

 Morton], as the two occur in the same strata." — Morton, 1834. 



Type Locality. — ? New Jersey. 



" Shell acutely angular, the angle of divergence of the sides being about 

 20°. Suture not strongly impressed, situated in an angular, rounded fur- 

 row; surface of the volutions depressed convex, nearly flat in the central 

 portion and curving more abruptly to the sutures above and below. Sur- 



