clxxiv INFERIOR OOLITE AMMONITES. 



position ; Cam Down. Normandy : Tilly-sur-Seulles, two specimens in my col- 

 lection from Mr. Brasil. He says (p. 7) it is abundant at Tilly-sur-Seulles and at 

 Fontenay-le-Pesnel in the upper part of the zone of Lytoceras jurense, associated 

 with species of Dumortieria, which he names ; it occurs in England in similar 

 association. 



Date of Existence. — Dumortieria hemera. 



3. Dumoetibria falcofila (Quenstedt). Fig. 164 in text. 



1885. Ammonites falcofila, Quenstedt, Amm. Schwab. Jura, PI. liv, fig. 31, and 



? fig. 28. 



Remarks. — Quenstedt figured a series of species as A. falcofila, A. falcofila sjpar- 



sicosta, and A. falcofila macer (Plate LIV, figs. 28 — 35). Of these Fig. 31 agrees 



exactly with our English example, Fig. 28 is near, but may 



. *. be a thinner form, Fig. 30 is a form allied to Dumortieria 



,y ■>;■/. r\ i>srii<lor<nli<>s(i (v. p. 24G) ; of Figs. 20, 35, falcofila sjmrsicosta, 



**■ t ' "'" Pig. 29, is IK nan/fa, sp. nov. (p. clxxiii), Fig. 35 is allied to 



/>. Munieri (v. p. clxxv) ; of Figs. 32 — 34, falcofila macer, Figs. 



32, 34, appear to be Catulloceras aff. Dumortieri, and might 



t^' therefore be inscribed Catulloceras macrum ; Fig. 33 is a smooth 



Fir;. 164.— Bumortieria species upon which I venture no opinion. 



falcofila, Quenstedt. Distinction.— Shows little of the coarse distant ribbing 



characteristic of the early whorls of the two preceding species. Is stouter whorled 

 than D. novata. 



Localities oral Strata. — Somerset: Furzey Knaps, near Yeovil, "Sands." 

 Foreign ; Normandy : Tilly-sur-Seulles, " Jurense zone," from Mr. L. Brasil. 

 Date of Existence. — Dumortierise hemera. 





4. Dumortieria sub Solaris, 8. Buchman. PI. XXXVII, figs. 6 — 8. 



1831. Ammonites Solaris? Zieten, Verst. Wurtt., PI. xiv, fig. 7 (non Solaris, 



Phillips). 

 1891. Dumortieria Levesquei, This Monogr., PI. xxxvii, figs. 6 — 8. 

 1902. Pumorteria Solaris, 8. Buchman, Emend. Amm. Nona., p. 6. 



Distinction. — From A. Levesquei, d'Orbigny, costae less definite, closer together, 

 less persistent; whorl more compressed ; periphery narrower, more acute. 



Remarks.- — Is Am. Solaris, Zieten, but not Phillips (' Geol. Yorkshire,' PI. IV, 



