Part II - State of New Jersey

122 CRETI\CEOUS FOSSILSThe siplloni~l side is xvell ronnclerl, the alltisil~llonal side concave andborderecl hy sharp shoulders, forming an imprcsseil zone in ~~hich asubcylindricid septatc part of t,lre sllell originally stood. At the lo\verend, the living cllnntbcr 1na1it.s :it] 160' turn ant1 cn(1s in ;I scptal facethat represents the last scpt,u~n. OIL the 160' tnrn tllcre are 4 coarseribs, each ornamented l)y a pair of sr~rall nodes, then a rleep constriction.On tlle conves side of the straight part of t,llc living chnrnbcr there areabout 30 sharp ribs with concave ilitcrspaces, each ril) being orn;l~nentctl11y a pair of faint no(1es netir the n~idlirle of the shell ;LII~ each rib beinginclined sligl~tly baek\varrl on tlic flanks. 'Phe apertnml part is markedby several strong ribs ant1 a constriction. The ribs of the concave sideappear to be the impressions of tllc rilrs of the septat,e part and unrelatedto the ribs of tllc eonye1 part. The snt1lr.o is not ilecipherahlefrom tile milrgin of t,hc septum.Remarlis.-This specics appears to rest entirely on t.hc single specimentlescrihe~l liy 3Iorton. Xo otlier has been reported. \Veller refiguredlforton's specimen, but: presnmahly by in;lclvertenee, omittetlany reference to it in Iris test.Range ill Dela~uare-The type is reported to I~ilrc ~(IIIIC from t,lle Ileep Cut of the Cliesapcalieant1 Dclnx~~arc Canal, near the present-(lily Stcmnlit Bridge, Del.Carter (1937) assigns t,l~c strata there to the Cross~vicks clays (Merclia~~tvilleand \tToorlbury of Xen. Jersey).Type.-Aca(1. h'at. Sci. Phila. 4789.Iflamily I'achylliseidae Spath, 1922(:enus Alc?biriles Spath, 1922Genotypc : 21 ntilto?~ifes ~ I ~ I IForbes, I L 1845Tl~c rrlost, conspienous feiltures of !lleauitcs are the umbilical andrcnt~rol;~te~~al tubercles, the linter rathor variable.Menuites? aff. M. cornplexus (lI:111 and 3leclc)Plate G9> Ioigures 1-6/lii~.i~ro~rites con~plczis [sic] Aall end Aleek (part). Gabb: 1861, Synopsis,p. 65 (9).Ai~~~iiol~ites eomplcxtra Hall and hleeli (pi~rt). lfeek: 1664: Check List,p. 24.A~rlntosites eoi~~ploz~is Hall arid Aleek. Conrad, 1.863, in Cook, Geol.New Jersey, 1). 730.A~~ta~on,itcs complax~rs Ilall :~nd Xlcelc (11art).\tThitfield> 1892; p. 249:pl. 41> figs. 5-7.l'oohydiscus eo~iiplczrrs (Ilall and IlZeek) I \\'eller, 1907, p. 619, pl. 101,figs. 3-4.NEW JERSEY GEOLOGICAL SURVEY