Pi AW SOW IL 
Hernzia, KNEMICERAS. 
Fires. 1-3. Heinzia provincialis (d’Orbigny ) 
Figs. 1,2. Same as Pl. XV, fig. 20, broken to show young, X 3. 
3. Lateral suture of the second quarter of outer volution of Pl. XV, fig. 
20, x 4. 
Escragnolles, France; Barrémian; Coll. Mus. Comp. Zool., Cambridge. 
HIGSH4— SPAM CiCen aS) Sy TLCUNTUN ayi@ Tals 3 U1 Ln) eee ee = ee 146 
Fig. 4. Natural size, showing length of living chamber, over one-fourth of a 
yolution. Coll. Mus. Comp. Zool., Cambridge. 
Lateral suture, < 23. 
Uncompressed typical fossil. Coll. Yale Mus. 
Part of suture of right side, 23, to contrast with next figure. 
Suture of left side, 3. Outlines perfectly preserved. 
Mount Lebanon, Syria; Cenomanian. 
Bigs: 9 -ONeAmemicenas) Compnessumsllny citi mes aru TIN) A SUZiC wart ee tepals a et 149 
Locality, same as last; Coll. Mus. Comp. Zool., Cambridge. 
Fies. 11-14. Anemiceras compressum var. subcompressum Hyatt....-..------------------------- 150 
Fig. 11. Specimen in collection of Columbia University. 
“Im 
ie) 
12. Section showing transition from a rounded young to the flat and then con- 
cave venters of the succeeding stages, 2, from specimen in Mus. Comp. 
Zool., Cambridge. ; 
13a. Enlarged view of center. 
13b. Enlarged view of protoconch and first volution with first and second 
sutures. 
14. One of Conrad’s specimens, natural size. Suture abraded. Coll. Yale 
Mus. j 5 
Locality, same as last. 
Fies. 15-18. AKnemiceras compressum Hyatt ......------------- ne sisiSioeaisa Ses emcee uae cms cemmateees 149 
Figs. 15,16. Type of species. Sutures abraded. : 
17. Suture from line of involution to first lateral lobe at breadth of 54 mm. on 
left side. 
18. Suture on right side to third lateral saddle at breadth of 63 mm. 
Locality, same as last. 
Fie. 19. Knemiceras compressum var. subcompressum Hyatt..........---------------+---------- 150 
Ventral view, natural size, of specimen in collection of Columbia University. For 
sutures see fig. 11. 
Locality, same as last. 
284 
