Part II - State of New Jersey

or more may be counted on the lower side of the body volution, in thepoorly prescrred specilnen used; apertore not seen." (\Vhitfield)Re~~rorlis.-This species is knolvn only from the type specimen andfrom a cast from l\larylan(l \\,it11 vhieh fragine~~ts of the shell lrerl:i~ssociate(l.Serrifusus crosswickensis Whitfield 1892Platc 58, Figure 1Serrificsns ? Cross~t~icke~~si.~ \\'hit,field, 1892> 17. 63, pl. 5, figs. 24-25.Serrifasas avosstuicl;o~l,sis 190i, p. 761, 111. 89, figs. 14-17.1lescriplioa.-"Sliell snlall or of medium size, biturbinatc in form,shorter l~elos. tlion aho~v 1.h~ middle, excli~sire of the beak, the extensionof IT-hich is unknolvn, casts only having heen observed; spire hroadlycoi~ical, the apical angle measuring about 55" ; volutions allout fourand a half or five on the internal cast; angularly rentricose, verticalor concave on the periphery, the latter character particularly a featureof the body rolubion; upper side of the volutions obliquely sloping, theslope being somewhat greater than t,he angle of the spire, so as to reyea1the vertical portion of each solntion; lolver side rounded ; aperturenearly as broad as high, as seen in a transverse section: the outerlip slightly biangular, corrcs~~ondiug to t,he narrow vertical hand ofthe periphery; columella stroi~g, indicating a rather robust beak; surfacefcat,ures nnknown. " (11'11itfield)Ren1arks.-Asbeen reported, the external nature of the shell is unknown.Range in Nclu Jersey-NAVESTNIC: 37,47Type.-Crosswieks, N. Jonly internal casts of this ur~eomn~on species liavePiestochilus bell.(Gal~b) 18601'lat.c 61; Figures 2: 3I'olirtilrtl~os bcllu D;~bb. 1660, Jour. Acad. Nat. Sci. I'hil., 2nd ser., rol.4, p. 300, pl. 48, fig. 7.l'oato~i~orphu (Piestochilzts) bclln \\Tl~itfiel~l, 1R92, p. 74. pl. 6, figs.15-18,NEW JERSEY GEOLOGICAL SURVEY