ORDER II AMMONOIDEA 567 
Rhacophyllites, Zittel (Fig. 1170); Huphyllites, Wahner ; Phylloceras, Suess (Figs. 
WL “HH 
We 





Fic. 1170. 
Rhacophyllites neojurensis, Quenst. sp. Keuper; Hallstadt, Austria. 

Fig. 1171. Fic. 1172. 
Phylloceras heterophyllum, Sowb. sp. Upper Phylloceras ptychoicum, Quenst. sp. Tithonian ; Stramberg, 
Lias ; Whitby, Yorkshire. Moravia. AL, Antisiphonal lobe. 

: 
1 
' 
1 

a6a5 oA a a2 al l L SL SIE L 1 a eaten lt i AL 
Fic. 1178. Fia. 1174. 
Suture-line of Phylloceras Nilssoni, Heb. sp. Suture-line of Sowerbiceras tortisulcatus, d’Orb. sp. 
Upper Lias. (after Quenstedt). 
SL, Ventral or siphonal lobe; Z, First, and 7, Second lateral lobes ; a1—6, Inner or so-called auxiliary lobes ; 
n, Line of involution; Li, Second dorsal lobe; AL, Antisiphonal lobe. 
1171-1173) ; Sowerbiceras, Paroni and Bon. (Fig. 1174); Dasyceras, gen. nov. Type 
