CRETACEOUS. 



99 



Medusites latilobatus Ammon. 



Medvsites latilobatus Ammon, 1886. Abbandl. Matb.-pbys. Classe Konigl. bayerischen 

 Akad. Wiss., Vol. XV, p. 159, figure in text. 



This species is based on a somewhat indistinct specimen preserved on 

 a Hint pebble found in the diluvium near Hamburg. The pebble is thought 

 to have been derived from the Upper Cretaceous. All that is known of 

 the species is shown in the accompanying figure. (See p. 97.) 



Fig. 25. — Medusites ( ?) latilobatus. Copy of Dr. Amnion's illustration of the type specimen. 



Medusites helgolandicus Brandt. 



Medusites helgolandicus Brandt, 1871. Mdm. Acad. imp. sci. St. Petersbourg, 7tb series, 



Vol. XVI, No. 11, p. 2. 

 Medusites helgolandicus Haeckel, 1880. System der Medusen, p. 647. 



This specific name appears to have been based on the report of the 

 discovery of specimens in Helgoland that were subsequently lost. 



