Part II - State of New Jersey

GASTROPODA 21Turritella quadrilirn Johnson 1898I'late 50, Figure 6; Plate 51, Figure 2Tzrrrilella qaadrilira Johnson, 1896, Ann. Rep. Geol. Snrr. N. for1897, 1). 264.il'zrrritella qrradrilir(t Johnson, 1898, l'roc. Aca(1. Nat. Sci. Phil. (1998)>p. 463.Tzri~ritella qvadrilira XVellcr, 1907, 11. 695, pl. 78, fig. 7.l'z~rretella qt~udrilir' Stephenson, 1923, p. 3K3, pl. 90, figs. 30-11.Tt~r.rite/la qzradrilira Groot, Organist and Richards, 1954; p. 50, 111. 6,fig. 3.Descriptio?~.-Apieal angle about 20' ; the figured specimen is tlleapical portion of a shell 19.5 mm. in length, with a maximum diameterof 6 mm., showing nine volutions. Suture situated a lit,tle above themiddle line of a broad, smooth, depressed, concave channel wl~ose lolverslope is less alrrupt than the upper, and whose width is more than onehalfthe ~vidth of the elevated portion of the volutions. Surface of therolutions between the sutural depression, a little convex and marked byfour strong, angular, revolving ribs, the uppermost of which is sliglltlysmaller than the others; the interspaces bet~~rcen the ribs are broa