78 BULLETIN OF THE 



Coroniceras multicostatum Hyatt. 



Aium. multicostatus Sow.. Min. Couch., v. 5, p. 76, pi. 454. 

 A mm. multicostatus Ziet., Verst Wiirt., p. 35, pi. 26, fig. 3. 

 A mm. multicostatus Quens'dt, Der Jura, p. 6 7, pi. 7, fig. 2. 

 Loc. Leicestershire and Seinur ; Coll. Sir C. Lyell and M. Boucault. 



Coroniceras coronaries Hyatt. 



A mm. coronaries Quens'dt, Der Jura, p. 68, pi. 7, fig. 5. 

 Loc. Semur, Boll, Balingen, and Stuttgart ; Coll. Boucault, Dr. Krantz, 

 L. de Koninck, and Mus. of Stuttgart. 



Coroniceras lyra Hyatt. 



Loc. Balingen, Aalen, and Tubingen ; Coll. L. de Koninck and Dr. 

 Krantz. 



Abdomen prominent, rounded. Keel and channels -well defined. Tu- 

 bercles well defined. Pilas depressed laterally near the tubercles and 

 swelling out below. Radial diameter of the whorl increases faster in pro- 

 portion to the transverse than in C. coronaries. Superior lateral lobe un- 

 equally divided by deep, narrow minor lobes into three branches. Superior 

 lateral cell on the abdomen. Inferior lateral cell long and deeply indented 

 by minor lobes. 



Coroniceras rotiforme Hyatt. 



A mm. rotiformis Sow., Min. Conch., v. 5, p. 76, pi. 453. 

 A mm. ro'i/nrmis Ziet., Verst. Wiirt., p. 35, pi. 26, fig. 1. 

 Amm. rotiformis D'Orb., Terr. Jurass., 1, p. 293, pi. 89, figs. 1-3. 

 Amm. caprolinus D'Orb., Terr. Jurass., 1, p. 240, pi. 64, figs. 1, 2. 

 Loc. Semur, Vaihingen, and Stuttgart ; Coll. Boucault, Mus. of Stuttgart, 

 and L. de Koninck. 



Coroniceras sinemuriense Hyatt. 



Amm. sinemuriensis D'Orb., Terr. Jurass., p. 303, pi. 95, fig. 1. 

 Loc. Semur ami Schaiehof; Coll. Boucault and Mus. of Stuttgart. 

 The old of this species is frequently described as .1//;/;;. Bucklandi. 



Coroniceras orbiculatum Hyatt. 



Amm. Bucklandi Ziet., Verst. Wiirt., p. 35, pi. 27, fig. 1. 

 A mm. Bucklandi Quens'dt, Der dura, p. 6 7, pi. 7, fig. 3. 

 Loc. Basel, Schippenstadt, and Balingen ; Coll. Prof. Bronn, Dr. Krantz, 

 and L. de lvoninck. 



Coroniceras Bucklandi Hyatt. 



Amm. Bucklandi Sow., .Min. Conch., v. 2, p. 69, pi. 130. 

 Amm. Bucklandi Phil. Gftol. York., p. 1, pi. 1 t. fig. 13. 

 Loc. Lyme Regis and Semur ; Coll. B. M. Wright and M. Boucault 



