54 Moll. 
VII. MOLLUSCA. 
AMMONEA . 
\Aconeceras , n. gen., type Amin, nisus, Orb., Cretaceous, France; Hyatt, 
Mon. U.S. Geol. Surv. xliv, p. 100. 
\Acompsoceras , n. gen., type Amm. bochumensis , Schl., Cretaceous, Germany; 
Hyatt, t. c. p. 111. 
t Beyrichoceras, n. subgen. of Glyphioceras , for G. obtusum , Phill., etc. ; 
Foord (178), p. 163. 
\Bittnerites, n. subgen. of Tirolites for T. malici , n. sp., etc., Trias, 
Dalmatia; Kittl, Abh. geol. Reichsanst. xx, p. 66. 
t Canavaria, Buckman nec Oppenheim, renamed Canavariceras, q.v. 
t Canavariceras, n. n. for Canavaria , Buckman nec Oppenheim ; Cossmann, 
Rev. paleozool. vii, p. 227. 
iCarstenia , n. gen. for Amm. caicedi , Karsten, Cretaceous, N. America, 
and others ; Hyatt, Mon. U.S. Geol. Surv. xliv, p. 133. 
* \Choffaticeras , n. gen., type Pseudotissotia meslei , Peron, Cretaceous, North 
Africa ; Hyatt, t. c. p. 37. 
iCoilopoceras, n. gen. for C. colleti , n. sp., Cretaceous, Mexico, and others; 
Hyatt, t. c. p. 91. 
t Dalmatites, n. gen. for D. morlaccus , n. sp., Trias, S. Europe ; Kittl (288), 
p. 72. 
t Eulophoceras, n. gen., type E. natalense , n. sp., Cretaceous, S. Africa; 
Hyatt, Mon. U.S. Geol. Surv. xliv, p. 85. 
t Gerhardtia, n. gen., type Amm. galeatoides , Karsten, Cretaceous, N. 
America ; Hyatt, t. c. p. 135. 
t Holobolus, n. subgen. of Tirolites , for T. monoptychus , n. sp., Trias, 
Dalmatia ; Kittl, Abh. geol. Reichsanst. xx, p. 32. 
t Mantelliceras, n. gen., type Amm. mantelli , Sby., Cretaceous, England ; 
Hyatt, Mon. U.S. Geol. Surv. xliv, p. 113. 
t Metasigiloc&i'as, n. gen., type Amm. rusticus , Sby., Cretaceous, British 
Isles; Hyatt, t. c. p. 106. 
t Metatissotiaj n. gen. for Buchiceras fournelij Bayle, Cretaceous, North 
Africa, and others ; Hyatt, t. c. p. 45. 
f Metengonoceras, n. gen. for M. inscription, n. sp., Cretaceous, Texas, and 
others ; Hyatt, t. c. p. 179. 
t Metoicoceras, n. gen. for Amm. swallovi ’, Shumard, Cretaceous, N. America, 
and others; Hyatt, t. c. p. 116. 
t Nicklesia, n. gen., type Amm. dumasianus , Orb., Cretaceous, S. America; 
Hyatt, t. c. p. 138. 
\ Par atissotia, n. gen. for P. regular e, n. sp., Cretaceous, Peru, and others ; 
Hyatt, t. c. p. 50. 
f Pseudaspidoceras, n. gen., type P. footeanum , Stol., Cretaceous, India; 
Hyatt, t. c. p. 106. 
iSchluetericeras, n. gen., type Amm. nodosoides , Schl., Cretaceous, Germany; 
Hyatt, t. c. p. 110. 
+ Schuchertites, n. gen. for S. grahami, n. sp., Carboniferous, America ; 
Smith, Mon. U.S. Geol. Surv. xlii, p. 49. 
+ Sharpeiceras, n. gen., type Amm. laticlavius , Sharpe, Cretaceous, England ; 
Hyatt, Mon U.S. Geol. Surv. xliv, p. 111. 
iShumardites , n. gen., type &. siynondsi , n. sp., Carboniferous, America; 
Smith, Mon. U.S. Geol. Surv. xlii, p. 134. 
iSphenoceras, n. subgen. of Glyphioceras , for G. sphcericum , Martin, etc. ; 
Foord (178), p. 154 
f Stacheites, n. gen. for S. prionoides, n. sp., Trias, S. Europe ; Kittl (288), 
p. 27. 
t Stantonoceras, apparently n. gen. for S. pseudocostatum, n. sp., Cretaceous, 
New Mexico; Johnson (263). 
